Automotive Electronics Solutions

VOL 5
Automotive & Transportation
Electronics Solutions
High Performance Analog ICs
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Contents
Automotive Quality and Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Current Sense Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Surge Stoppers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Power Supply Supervisors/Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Ideal Diode Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Power Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Silent Switcher®—Ultralow EMI Synchronous Switching Regulators . . . . 3
Temperature Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
60V, High Efficiency Monolithic Step-Down DC/DC Converters . . . . . . . . 4
Coulomb Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
60V/100V DC/DC Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pushbutton Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
40V, Low Quiescent Current Monolithic Switching Regulators . . . . . . . . 7
TimerBlox® Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
40V, Step-Down DC/DC Converters with Cable Drop Compensation
for USB Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Silicon Oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
36V to 60V Multioutput Step-Down DC/DC Converters . . . . . . . . . . . . . 10
Programmable Gain and Gain Selectable Amplifiers . . . . . . . . . . . . . . . . 33
36V Low Quiescent Current Synchronous DC/DC Controllers . . . . . . . . . 11
Instrumentation Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
µModule® Power Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
High Temp (125°C) Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
High Voltage Power Managers and Battery Chargers . . . . . . . . . . . . . . . 14
High Speed Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
High Voltage Charge Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Differential Amplifiers/ADC Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
36V to 80V Synchronous Buck-Boost Switching Regulators . . . . . . . . . . 16
High Temp (125°C) Voltage References . . . . . . . . . . . . . . . . . . . . . . . . . 36
Low Voltage (<6V) Point-of-Load Monolithic Synchronous Step-Down
Switching Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Delta-Sigma Analog-to-Digital Converters . . . . . . . . . . . . . . . . . . . . . . . 37
Monolithic Step-Up DC/DC Converters . . . . . . . . . . . . . . . . . . . . . . . . . 18
LCD and OLED Biasing—Boost and Inverting Monolithic DC/DC
Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Precision Operational Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SAR Analog-to-Digital Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SAR Analog-to-Digital Converters (continued) . . . . . . . . . . . . . . . . . . . . 39
High Speed Analog-to-Digital and Digital-to-Analog Converters . . . . . . . 40
High Efficiency LED Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PLL Synthesizers and RF Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Digital Power System Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Precision Digital-to-Analog Converters . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Low Noise LDOs: Positive Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rugged Serial Interface Transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Low Noise LDOs: Positive Regulators (continued) . . . . . . . . . . . . . . . . . . 23
Isolated µModule Transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
High Voltage Battery Stack Monitors for Battery Management Systems . . 24
I2C Bus Buffers, Multiplexers & Rise Time Accelerators . . . . . . . . . . . . . . 45
Active Battery Balancing ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Power over Ethernet (PoE) Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . 46
SmartMesh® — Embedded Wireless Sensor Networking . . . . . . . . . . . . 47
BODY ELECTRONICS
LED POWER
SAFETY SYSTEMS
• Instrument Panel
• Headlights & Taillights
• Accent Lighting
• Daytime Running/Fog Lights
• Interior LCD Backlight
NAVIGATION &
ENTERTAINMENT
• HVAC Control
• Door, Window & Seat Power
• Security System
• Tire Pressure Monitor
• Telematics
• Audio & Video Systems
• Communications
• Collision Avoidance
• Lane Departure
Warning
• Active Parking Assist
• Radar, Adaptive
Cruise Control
BATTERY
MANAGEMENT
SYSTEM
• Battery Stack
Monitor
• Active Battery
Balancing
EXHAUST SYSTEM
ELECTRONIC BRAKING
• ABS Processor Power
• Brake Caliper Power
ENGINE MANAGEMENT
• Engine Control Processor Power
• Electronic Valves
• Fuel Injection
• Idle Stop and Go Systems
ELECTRONIC STEERING
12V-48V POWER
• Stability Control System Power
• Steering Motor Power
• Power Conversion
• Fault Protection
• Active Exhaust
Resonance Tuning
• Active Noise
Cancellation
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Focused on the Automotive and Transportation Market
• High
performance analog ICs provide efficient, compact and dependable solutions for use in all
kinds of automotive and transportation systems
• 19%
of total sales
• 28%
annual growth rate over the past 5 years
• Supplier
to major OEM and Tier 1 companies throughout Europe, Japan, Asia and North America
Innovative Solutions
DESIGN
First to market with new technology
breakthroughs that improve
end-product performance and
reduce system costs
Technical Support
LONG TERM SUPPORT
Non-Obsolescence
Policy
Worldwide design support
reduces time to market
Three Decades of Analog Excellence
Eliminate redesign
QUALIFICATION
Superior Quality and Reliability
Committed to the goal of zero defects
PRODUCTION
Vertically Integrated to Ensure
Highest Quality and Service
Internal wafer fabrication, assembly and test
Short, consistent lead times
Superior Quality and Reliability — Committed to the Goal of Zero Defects
• TS16949 Automotive Quality Standard Certification Since 2003
• AEC-Q100 Compliant Products
• ISO 26262 International Safety Standard Implementation
• Special Flows for Critical Applications
–Including 100% Electrical Temperature Testing
• Industry-Leading Quality Indices
–Infant Mortality Field Failure Rate < 0.1ppm
–Long Term Field Failure Rate 0.01ppm
• Quick Turnaround of Failure Analysis 8D Correction Reports
Please visit www.linear.com/designtools/quality
for more information
Visit www.linear.com for sales contact information, product information and design and simulation support.
1
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
4A, 12V Overvoltage Output Regulator with 150V Surge Protection
Surge Stoppers
Replaces Bulky TVS, LC Filter and Fuses
•
Adjustable Output Clamp Voltage
•
Overcurrent and Reverse Battery Protection
•
Adjustable Ride-Through Fault Timer
•
Undervoltage and Overvoltage Monitoring
•
Latchoff and Auto-Retry Options
10Ω
0.1µF
•
Car Infotainment System
•
GPS
SNS
OUT
FB
SMAJ58A
SHDN
DC/DC
CONVERTER
LT4363-2
49.9k
SHDN
ENOUT
OV
GND
FLT
TMR
Surge
VIN
Max
ISD
Range (V) (V)
IQ (µA) (µA)
Reverse
Battery
Maximum
Current Fault Ideal Reverse Ambient
Limit
Timer Diode Output Temperature Package
LT4356
4 to 80
100+
1000
7
–60V
<100V
LT4363
4 to 80
100+
700
7
–60V
LTC4364
4 to 80
100+
370
10
–40V
LTC4365
2.5 to 34
60
125
10
–40V
LTC4366
9 to 500+ 500+
160+
5
External
LTC4361
2.5 to 5.5 80
220
1.5
External
FAULT
Overvoltage Protector Regulates
Output at 27V During Transient
●
125°C
4x3 DFN-12, MSOP-10, SO-16
●
●
125°C
4x3 DFN-12, MSOP-12, SO-16
●
●
125°C
4x3 DFN-14, MSOP-16, SO-16
125°C
3x2 DFN-8, TSOT-8
125°C
3x2 DFN-8, TSOT-8
125°C
2x2 DFN-8, TSOT-8
●
–20V
●
●
80V INPUT SURGE
Features:
• Replaces Power Schottky Diode
12V
VOUT
20V/DIV
27V ADJUSTABLE CLAMP
12V
Saves Power, Voltage and Board Area
•
Supply Holdup
•
Smooth Switchover without Oscillation
•
Diode-OR for Redundancy
•
No Reverse DC Current
•
Engine Stop-Start
•
Body Electronics
Power Dissipation vs Load Current
12V, 20A Automotive Reverse Battery Protection
MOSFET
(BSC028N06NS)
SMAJ24A
24V
15
CURRENT (A)
POWER
SAVED
VOUT TO LOAD
SMAT70A
70V
20
SCHOTTKY DIODE (SBG2040CT)
BSC028N06NS
VIN
12V
Forward Voltage Drop Comparison
Between MOSFET and Schottky Diode
10
6
100ms/DIV
Applications:
• Reverse Battery Protection
•
CTMR = 6.8µF
ILOAD = 500mA
VIN
20V/DIV
Ideal Diode Controllers
4
GND
0.1µF
Part
Number
8
VCC
4.99k
UV
Applications:
• Automotive Surge Protection
Engine Control Unit
57.6k
GATE
VCC
127k
OUTPUT
CLAMP
AT 16V
22µF
1k
•
•
10mΩ
FDB33N25
VIN
12V
Features:
• Stops High Voltage Surges (>100V)
POWER DISSIPATION (W)
2
VOLTAGE SAVED
IN
SOURCE
GATE
OUT
47nF
SHDN
LTC4359
10
VSS
SCHOTTKY DIODE
(SBG2040CT)
5
2
MOSFET (BSC028N06NS)
0
0
10
5
15
0
20
0
0.1
CURRENT (A)
Part
Number
VIN
Range
(V)
Supplies
LTC4352
0 to 18
1
1.4
LTC4353
0 to 18
2
1.5
LTC4354
–4.5 to –80
2 (OR)
LTC4355
9 to 80
2 (OR)
LTC4357
9 to 80
1
LTC4358
9 to 26.5
1
LTC4359
4 to 80
1
Internal
FET
●
IQ
(mA)
0.3
0.4
0.2
FORWARD VOLTAGE (V)
Reverse
Battery
Diode
On/Off
Control
Monitors
Maximum Ambient
Temperature
Package
VIN, FET On/Drop
150°C
3x3 DFN-12, MSOP-12
FET On
85°C
4x3 DFN-16, MSOP-16
1.2
FET Drop
85°C
3x2 DFN-8, SO-8
2.0
VIN, Fuse, FET Drop
125°C
4x3 DFN-14, MSOP-16, SO-16
0.5
125°C
2x3 DFN-6, MSOP-8
0.6
85°C
4x3 DFN-14, TSSOP-16
125°C
2x3 DFN-6, MSOP-8
0.15
ISD
(µA)
1k
0.5
●
75
9
–40V
●
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Silent Switcher—Ultralow EMI Synchronous Switching Regulators
Silent Switcher® Architecture:
• Ultralow EMI/EMC Emissions — Meets CISPR 25, Class 5
EMI Requirements
•
VIN
5.8V TO 42V
4.7µF
3.4V to 42V Input Range
•
4A of Continuoius Output Current
•
High Efficiency at High Frequency
VIN1
1µF
10nF
–– Up to 94% Efficiency at 2MHz
•
•
VIN2
GND1
PG
–– Up to 96% Efficiency at 1MHz
EN/UV
1µF
GND2
LT8614
BST
SYNC/MODE
TR/SSB
SW
IAS
INTVCC
FB
0.1µF 4.7µH
1µF
Ultralow Quiescent Current Burst Mode® Operation: IQ<2.5μA
18-Lead 3mm × 4mm QFN
41.2k
4.7pF
RT
VOUT
5V
4A
1M
47µF
243k
GND
fSW = 1MHz
Silent Switcher EMI Performance
50
100
Radiated EMI Performance
1MHz
95
30
LT8614 Solution
Footprint
20
Actual Size
Demo Board
LT8614
CISPR25
CLASS 5 PEAK
10
0
2MHz
90
0
100
200
300
400
500
(MHz)
600
700
800
900
EFFICIENCY (%)
(dBµV/m)
40
85
80
75
70
65
60
0
0.5
1.0
1000
1.5 2.0 2.5 3.0
LOAD CURRENT (A)
3.5
4.0
Part
Number
Device Architecture
VIN
Range(V)
IOUT
(A)
VOUT(MIN
(V)
Frequency
Ext Sync Range
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT8641
Silent Switcher Synchronous Step-Down
3.0 to 65
4
0.8
200kHz to 3MHz
200kHz to 3MHz
2.5
1
150
3x4 QFN-18
LT8614
Silent Switcher Synchronous Step-Down
3.4 to 42
4
0.97
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
3x4 QFN-18
LT8640
Silent Switcher Synchronous Step-Down
3.4 to 42
6
0.97
200kHz to 3MHz
200kHz to 3MHz
2.5
1
150
3x4 QFN-18
LT8645
Silent Switcher Synchronous Step-Down
3.4 to 65
6
0.8
200kHz to3MHz
200kHz to 3MHz
2.5
1
150
3x4 QFN-18
3
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
60V, High Efficiency Monolithic Step-Down DC/DC Converters
LT®8620: 65V, 2A Synchronous Step-Down
DC/DC Converter with only 2.5μA of Quiescent Current
5V 2A Step-Down Converter
VIN
5.5V TO 65V
Features:
• Wide Input Voltage Range: 3.4V to 65V
•
94% Efficiency at 1A, 12VIN to 5VOUT
•
92% Efficiency at 1A, 12VIN to 3.3VOUT
BST
SYNC
10nF
•
Safely Tolerates Inductor Saturation in Overload
•
Low EMI
•
Small Thermally Enhanced 16-Lead MSOP and
•
24-Lead 3mm × 5mm QFN Packages
BIAS
VOUT
5V
47µF 2A
1M
FB
10pF
INTVCC
RT
Low Dropout Under All Conditions: 250mV at 1A
SW
LT8620
TR/SS
1µF
•
0.1µF
4.7µH
EN/UV
PG
Ultralow Quiescent Current Burst Mode Operation: IQ<2.5μA
•
VIN
4.7µF
GND
60.4k
243k
fSW = 700kHz
Efficiency
VIN
20V/DIV
EFFICIENCY (%)
4
VIN
0V
VOUT
20mV/DIV
AC COUPLED
100
95
90
85
80
75
70
65
60
55
50
fSW = 700kHz
VIN = 12V
VIN = 24V
0 0.25 0.50 .75 1.0 1.25 1.5 1.75 2.0
LOAD CURRENT (A)
IOUT 250mA
50ms/DIV
LOAD DUMP
COLD CRANK
60V, Ultralow Quiescent Current Synchronous Monolithic Step-Down DC/DC Converters
Part
Number
Device Architecture
VIN
Range (V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT8619
Synchronous Step-Down
3.4 to 65
1
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
3x3 DFN-10, MSOP-10E
LT8620
Synchronous Step-Down
3.4 to 65
2
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
MSOP-16E
LT8626
Dual Output Synchronous
Step-Down
3.4 to 65
1.5A + 1A
0.97
200kHz to 3MHz
200kHz to 3MHz
5
1
150
3x6 QFN, TSSOP-28E
LT8641*
Synchronous Step-Down
3.0 to 65
4
0.8
200kHz to3MHz
200kHz to 3MHz
2.5
1
150
3x4 QFN-18
LT8645*
Synchronous Step-Down
3.4 to 65
6
0.8
200kHz to3MHz
200kHz to 3MHz
2.5
1
150
3x4 QFN-18
*Silent Switcher
76V to 150V, Low Quiescent Current High Efficiency Monolithic Step-Down DC/DC Converters
Part
Number
Device Architecture
VIN
Range (V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LTC3639
Synchronous Step-Down
4.0 to 150
0.10
0.8
Hysteretic
n/a
12
1
150
HV MSOP-16E
LTC3638
Synchronous Step-Down
4.0 to 140
0.25
0.8
Hysteretic
n/a
12
1
150
HV MSOP-16E
LTC7138
Step-Down
4.0 to 140
0.4
0.8
Hysteretic
n/a
12
1
150
HV MSOP-16E
LTC3630A
Synchronous Step-Down
4.0 to 76
0.5
0.8
Hysteretic
n/a
12
1
150
HV MSOP-16E, 3x5 DFN-16
LTC3637
Step-Down
4.0 to 76
1
0.8
Hysteretic
n/a
12
1
150
HV MSOP-16E, 3x5 DFN-16
LT8631
Synchronous Step-Down
3.0 to 100
0.50
0.97
100kHz to1MHz
100kHz to 1MHz
15
1
150
TSSOP-20E
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
60V, High Efficiency Monolithic Step-Down DC/DC Converters (continued)
60V, Ultralow Quiescent Current Monolithic Step-Down DC/DC Converters
Part
Number
Device Architecture
VIN
Range (V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3990
Step-Down
4.2 to 62
0.35
1.21
200kHz to 2MHz
250kHz to 2MHz
2.5
1
150
3x3 DFN-10, MSOP-16E
LT3991
Step-Down
4.3 to 55
1.20
1.19
200kHz to 2MHz
250kHz to 2MHz
2.8
1
125
3x3 DFN-10, MSOP-10E
LT3995
Step-Down
4.3 to 60
2.50
1.2
200kHz to 2MHz
200kHz to 2MHz
2.7
1
150
MSOP-16E
60V, Low Quiescent Current Monolithic Step-Down DC/DC Converters
Part
Number
Device Architecture
VIN
Range (V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (kHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3437
Step-Down Regulator
3.3 to 80
0.40
1.25
200kHz
240kHz to 700kHz
100
1
140
3x3 DFN-10, TSSOP-16E
LT3433
Buck-Boost Regulator
4 to 60
0.40
3.3
200kHz
n/a
100
10
125
TSSOP-16E
LTC3630/A
Synchronous Step-Down
4 to 76
0.5
0.8
Hysteretic
n/a
12
1
150
3x5 DFN-16, MSOP-16E
LT1976/-1
Step-Down Regulator
3.3 to 60
1.25
1.2
200/100kHz
230kHz to 600kHz
100
1
140
TSSOP-16E
LT1977
Step-Down Regulator
3.3 to 60
1.25
1.2
500kHz
575kHz to 700kHz
100
1
140
TSSOP-16E
LT3980
Step-Down Regulator
3.6 to 58, 80MAX
2.00
0.79
100kHz to 2.4MHz
100kHz to 2.4MHz
85
1
150
3x4 DFN-16, MSOP-16E
LT3434
Step-Down Regulator
3.3 to 60
2.50
1.2
200kHz
230kHz to 500kHz
100
1
125
TSSOP-16E
LT3435
Step-Down Regulator
3.3 to 60
2.50
1.2
500kHz
575kHz to 700kHz
100
1
125
TSSOP-16E
60V Monolithic Switching Regulators
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (kHz)
IQ(mA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT1676
Step-Down
7.4 to 60
0.44
1.24
100kHz
130kHz to 250kHz
3.2
30
125
N8/SO-8
LT1956/-5
Step-Down
5.5 to 60
1.2
1.20
500kHz
580kHz to 700kHz
2.5
25
125
TSSOP-16/E
LT1766/-5
Step-Down
5.5 to 60
1.2
1.20
200kHz
228kHz to 700kHz
2.5
25
140
TSSOP-16/E
LT3988
Dual Step-Down
4.0 to 60, 80 Max
2x1.0
0.75
250kHz to 2.5MHz
250kHz to 2.5MHz
2.0
1
150
MSOP-16E
LT3431
Step-Down
5.5 to 60
2.5
1.20
500kHz
580kHz to 700kHz
2.5
30
125
TSSOP-16E
LT3430/-1
Step-Down
5.5 to 60
2.5
1.20
200/100kHz
228kHz to 700kHz
2.5
30
125
TSSOP-16E
LT3992
Dual Step-Down
3.0 to 60
3x2
0.80
250kHz to 2MHz
250kHz to 2MHz
4.7
6
150
5x5 QFN-32, TSSOP-38E
LT8300
Flyback Converter
6.0 to 100
0.5
1.22
Variable
N/A
330
70
150
TSOT-23
5
6
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
60V/100V DC/DC Controllers
LTC®3864: 60V Synchronous Step-Down
Controller with Low IQ and 100% Duty
Cycle Operation
5.2V to 60V Input, 5V/2A Output
Features:
• Wide Operating VIN Range: 3.5V to 60V
•
Wide VOUT Range: 0.8V to VIN
•
Low Operating IQ = 40μA
•
10µF
0.1µF
350kHz
LTC3864
3.3nF
Actual Size
Demo Board
9.09k
RUN
CAP
VIN
25mΩ
PLLIN/MODE
SS
SENSE
ITH
GATE
LTC3864
Very Low Dropout Operation: 100% Duty Cycle
FREQ
•
Strong High Voltage MOSFET Gate Driver
SGND
•
Constant Frequency Current Mode Architecture
•
Verified FMEA for Adjacent Pin Open/Short
VIN
5.2V TO 60V
10µH
100k 422k
PGOOD
PGND VFB
VOUT
5V
2A
47µF
×2
80.6k
60V Input, Low Quiescent Current DC/DC Controllers
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)*
VOUT(MIN)
(V)
Frequency
(kHz)
Ext Sync
Range (kHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LTC3864
Step-Down
3.5 to 60
5
0.8
50 to 850
75 to 750
40
7
150
DFN-12, MSOP-12
LTC3824
Step-Down
4 to 60
5
0.8
200 to 600
230 to 600
40
25
150
MSOP-10E
LT3840
Synchronous Step-Down
2.5 to 60
20
1.25
50 to 1MHz
50 to 1MHz
20
1
150
TSSOP-28/QFN-38
LT3844
Step-Down
4 to 60
5
1.23
100 to 600
100 to 600
120
10
125
TSSOP-16E
LTC3863
Inverter
3.5 to 60
5
-0.4
50 to 850
75 to 750
70
7
150
DFN-12, MSOP-12
LTC3891
Synchronous Step-Down
4 to 60
20
0.8
50 to 900
75 to 750
50
14
150
QFN-20, TSSOP-20E
LT3800
Synchronous Step-Down
4 to 60
20
1.23
200
n/a
100
10
125
TSSOP-16E
LT3845/A
Synchronous Step-Down
4 to 60
20
1.23
100 to 600
100 to 600
120
10
125
TSSOP-16E
LTC3890/-1/-2/-3 Dual Synchronous Step-Down
4 to 60
2 X 20
0.8
50 to 900
75 to 850
50
14
150
QFN-32
LTC3769
4.5 to 60
10
Up to 60
50 to 900
75 to 850
28
4
150
QFN-24, SSOP-20
Synchronous Step-Up
* Dependent on External FET
60V/100V Input DC/DC Controllers
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)*
VOUT(MIN)
(V)
Frequency
(kHz)
Ext Sync
Range (kHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3748
Flyback
5 to 100
5
1.22
variable
n/a
1.3mA
1
150
MSOP-16 (12)
LT3758
Flyback, Boost, SEPIC, Inverter
5.5 to 100
5
1.22
100 to 1MHz
100 to 1MHz
1.7mA
1
150
DFN-10, MSOP-10
LT3751
Flyback
4.75 to 400+
5.0
1.22
variable
n/a
5.5mA
1
125
QFN-20, TSSOP-20
LTC3803/-3
Flyback
9.2 to **
5
0.8
200/300
n/a
240
40
150
ThinSOT™
LTC3803-5
Flyback
5 to **
5
0.8
200
n/a
240
40
150
ThinSOT
LTC3805
Flyback
8.8 to **
5
0.8
70 to 700
50 to 930
360
40
150
DFN-10/MSOP-10
LTC3805-5
Flyback
4.7 to **
5
0.8
70 to 700
50 to 930
360
40
150
DFN-10/MSOP-10
LT8710
Synchronous SEPIC, Boost, Inverter
4.5 to 80
10
0
70 to 700
70 to 700
4mA
1
125
TSSOP-20
LTC3814-5
Synchronous Step-Up
4.5 to 50
10
7
100 to 1MHz
n/a
3mA
240
125
TSSOP-16E
LTC3813
Synchronous Step-Up
7 to 90
10
8
100 to 1MHz
100 to 1MHz
3mA
240
125
SSOP-28
LTC3703-5
Synchronous Step-Down
4.1 to 60
10
4.1
100 to 600
100 to 600
1.7mA
25
125
SSOP-16, TSSOP-28
LTC3703
Synchronous Step-Down/Step-Up
9.3 to 100
10
9.3
100 to 600
100 to 600
1.7mA
50
150
SSOP-16, TSSOP-28
LT3796
Buck, Boost, Buck/Boost
6 to 100
10
1.25
100 to 1MHz
100 to 1MHz
2.5mA
1
150
TSSOP-28E
LT3791/-1
Synchronous Buck-Boost Controller 4.7 to 60
10
1.2
200 to 700
200 to 700
3mA
1
150
TSSOP-38E
LTC3812-5
Synchronous Step-Down
4.2 to 60
20
4.2
100 to 1MHz
n/a
3mA
230
125
TSSOP-16E
LTC3810-5
Synchronous Step-Down
4.2 to 60
20
4.2
100 to 1MHz
100 to 1MHz
3mA
240
150
TSSOP-16E
LTC3810
Synchronous Step-Down
6.2 to 100
20
6.2
100 to 1MHz
100 to 1MHz
3mA
240
125
TSSOP-16E
LT8705
Synchronous Buck Boost
2.8 to 80
10
1.2
100 to 400
100 to 400
2.7
1
150
TSSOP-38/QFN-38
* Dependent on External FET **Depends on External Components
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
40V, Low Quiescent Current Monolithic Switching Regulators
LT8640: 42V, 5A, 3MHz Silent Switcher with Ultralow IQ
12VIN to 5VOUT Efficiency
100
Features:
• Silent Switcher Architecture:
95
–– Ultralow EMI/EMC Emissions
90
High Efficiency at High Frequency
LT8640
–– Up to 96% Efficiency at 1MHz
Actual Size
Demo Board
–– Up to 95% Efficiency at 2MHz
•
Wide Input Voltage Range: 3.4V to 42V
•
Ultralow Quiescent Current Burst Mode Operation:
IQ < 2.5μA
•
EFFICIENCY (%)
–– Spread Spectrum Frequency Modulation
•
85
80
75
70
1MHz
2MHz
3MHz
65
5VOUT, 5A Step-Down Converter
VIN
5.8V TO 42V
Small 18-Lead 3mm × 4mm QFN
4.7µF
EN/UV
VIN1
1µF
GND1
PG
10nF
60
0.5 16 1.5 2 2.5 3 3.5 4 4.5 55 .5
LOAD CURRENT (A)
VIN2
GND2
LT8640
SYNC/MODE
TR/SS
BST
0.1µF 4.7µH
VOUT
5V
6A
SW
BIAS
1µF
4.7pF
INTVCC
41.2k
1µF
RT
1M
47µF
FB
243k
GND
fSW = 1MHz
42V, Ultralow Quiescent Current Synchronous Monolithic Switching Regulators
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
LT8608
Synchronous Step-Down
3.0 to 42
1
0.8
200kHz to 3MHz
200kHz to 3MHz
2.5
1
150
2x2 DFN-8,
MSOP-10E
LT8609
Synchronous Step-Down
3.0 to 42
2
0.8
200kHz to 2.2MHz
200kHz to 3MHz
2.5
1
150
MSOP-10E
LT8610
Synchronous Step-Down
3.4 to 42
2.5
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
MSOP-16E
LT8610A
Synchronous Step-Down
3.4 to 42
3.5
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
MSOP-16E
LT8610AB
Synchronous Step-Down
3.4 to 42
3.5
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
MSOP-16E
LT8610AC
Synchronous Step-Down
3.0 to 42
3.5
0.8
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
MSOP-16E
LT8611
Synchronous Step-Down with Current Sense 3.4 to 42
2.5
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
3x5 QFN-24
LT8697
Synchronous Step-Down with Cable Comp
3.4 to 42
2.5
5V
300kHz to 2.2MHz
300kHz to 2.2MHz
3.6
1
150
3x5 QFN-24
LT3690
Synchronous Step-Down
3.9 to 36,60MAX 4
0.8
170kHz to 1.5MHz
170kHz to 1.5MHz
70
1
150
4x6 QFN-26
LT8616
Dual Output Synchronous Step-Down
3.4 to 42
2.5A + 1.5A
0.97
200kHz to 3MHz
200kHz to 3MHz
5
1
150
3x6 QFN-28,
TSSOP-28E
LT8614*
Synchronous Step-Down
3.4 to 42
4
0.97
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
3x4 QFN-18
LT8612
Synchronous Step-Down
3.4 to 42
5
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
3x6 QFN-28
LT8613
Synchronous Step-Down with Current Sense 3.4 to 42
5
0.985
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
3x6 QFN-28
LT8640*
Synchronous Step-Down
3.4 to 42
5
0.97
200kHz to 3MHz
200kHz to 3MHz
2.5
1
150
3x4 QFN-18
3.0 to 42
2.5A + 1.5A +
1.5A + 1.5A
0.8
250kHz to 2.2MHz
250kHz to 2.2MHz
25 (total)
1
150
6x6 QFN-40
LT8602
Quad Output Synchronous Step-Down
Package
* Silent Switcher
40V, Ultralow Quiescent Current Monolithic Switching Regulators
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3970
Step-Down
4.2 to 42
0.35
1.25
200kHz to 2.2MHz
200kHz to 2.2MHz
2.5
1
150
2x3 DFN-10, MSOP-10
LT3973
Step-Down
4.3 to 42
0.75
1.21
200kHz to 2.2MHz
250kHz to 2.2MHz
2.5
1
150
3x3 DFN-10, MSOP-10E
LT3971
Step-Down
4.3 to 38
1.20
1.19
200kHz to 2.2MHz
200kHz to 2.2MHz
2.8
1
125
3x3 DFN-10, MSOP-10E/16E
LT3975
Step-Down
4.3 to 42
2.50
1.20
200kHz to 2MHz
200kHz to 2MHz
2.7
1
150
MSOP-16E
LT3976
Step-Down
4.3 to 40
5.00
1.20
200kHz to 2MHz
200kHz to 2MHz
3.3
1
150
MSOP-16E
7
8
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
40V, Low Quiescent Current Monolithic Switching Regulators (continued)
40V, Low Quiescent Current Monolithic Switching Regulators
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LTC3632
Synchronous Step-Down
4.5 to 50
0.02
0.80
hystr.
n/a
12
1
125
3x3 DFN-8, MSOP-8
LTC3642
Synchronous Step-Down
4.5 to 45
0.05
0.80
hystr.
n/a
12
1
125
3x3 DFN-8, MSOP-8
LTC3631
Synchronous Step-Down
4.5 to 45
0.100
0.80
hystr.
n/a
12
1
125
3x3 DFN-8, MSOP-8
LT3470
Step-Down
4.0 to 40
0.33
1.25
hystr.
n/a
26
1
150
ThinSOT
LT1934/-1
Step-Down
3.3 to 34
0.40
1.25
COT*
n/a
12
1
125
2x3 DFN-6,ThinSOT
LT3667
Step-Down with Dual LDOs
4.3 to 40
0.40
0.80
250kHz to 2.2MHz
300kHz to 2.2MHz
45
1
150
3x5 QFN-24, MSOP-16E
LT3668
Step-Down with Dual Tracking LDOs
4.3 to 40
0.40
0.80
250kHz to 2.2MHz
300kHz to 2.2MHz
50
1
150
MSOP-16E
LT3689
Step-Down with POR
3.6 to 36, 60 Max
0.70
0.80
350kHz to 2.2MHz
350kHz to 2.2MHz
85
1
150
3x3 QFN-16, MSOP-16E
LT3973
Step-Down
4.3 to 42
0.75
1.21
200kHz to 2.2MHz
250kHz to 2.2MHz
2.5
1
150
3x3 DFN-10, MSOP-10E
LTC3646/-1 Synchronous Step-Down
4.0 to 40
1
0.60
200kHz to 3MHz
250kHz to 3MHz
140
1
150
3x4DFN-14,MSOP-16E
LT3695
Step-Down with Fault Protection
3.6 to 36, 60 Max
1.00
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
75
1
150
MSOP-16E
LT3682
Step-Down
3.6 to 36, 60 Max
1.00
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
75
1
125
3x3 DFN-12
LT3480
Step-Down
3.6 to 38, 60 Max
2.00
0.79
200kHz to 2.4MHz
250kHz to 2MHz
70
1
150
3x3 DFN-10, MSOP-10E
LT3481
Step-Down
3.6 to 34, 36 Max
2.00
1.26
300kHz to 2.8MHz
n/a
50
1
150
3x3 DFN-10, MSOP-10E
LT3681
Step-Down
3.6 to 34, 36 Max
2.00
1.26
300kHz to 2.8MHz
n/a
50
1
125
3x4 DFN-14
LT3972
Step-Down
3.6 to 33, 62 Max
3.50
0.79
200kHz to 2.4MHz
250kHz to 2MHz
75
1
150
MSOP-10E
LT3680
Step-Down
3.6 to 36
3.50
0.79
200kHz to 2.4MHz
250kHz to 2MHz
75
1
150
3x3 DFN-10, MSOP-10E
40V Monolithic Switching Regulators
Part
Number
Device Architecture
VIN
Range(V)
IOUT (A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(mA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3502/A
Step-Down
3.4 to 40
0.33
0.70
1.1/2.2MHz
n/a
1.5
1
125
2x2 DFN-8
LT3645
Step-Down + LDO Controller
3.6 to 36, 55 Max
0.50
0.80
750kHz
n/a
1.7
1
150
MSOP-12E
LT1933
Step-Down
3.6 to 36
0.60
0.75
500kHz
n/a
1.6
1
150
ThinSOT, 2x3DFN-6
LT1776
Step-Down
7.4 to 40
0.70
1.25
200kHz
250kHz to 400kHz
3.2
30
125
SO-8
LT3686/A
Step-Down
3.6 to 37, 60 Max
1.20
0.80
300kHz to 2.5MHz
300kHz to 2.5MHz
1.1
1
150
3x3 DFN-10, MSOP-10E
LT3493/A
Step-Down
3.6 to 36
1.20
0.78
750kHz
n/a
1.9
2
125
2x3 DFN-6
LT3505
Step-Down
3.6 to 36
1.20
0.78
300kHz to 2.8MHz
n/a
1.9
2
125
3x3 DFN-8, MSOP-8E
LT3663
Step-Down with Current Limiting
7.5 to 36, 60 Max
1.20
3.30
1.5MHz
n/a
2.4
1
150
2x3 DFN-8, MSOP-8
LT3509
Dual Step-Down
3.6 to 36, 60 Max
2x0.70
0.80
300kHz to 2.2MHz
300kHz to 2.2MHz
1.9
1
150
3x4 DFN-14,MSOP-16E
LT3688
Dual Step-Down w/POR/Watchdog
3.6 to 36
2x0.80
0.80
350kHz to 2.5MHz
350kHz to 2.5MHz
115µA
1
150
4x4 QFN-24,TSSOP-24E
LT3640
Dual Step-Down
4.0 to 35, 55 Max
1.3 + 1.1
0.60
350kHz to 2.5MHz
350kHz to 2.5MHz
290µA
1
125
4x5 QFN-28,TSSOP-28E
LT3641
Dual Step-Down
4.0 to 42, 55 Max
1.3 + 1.1
0.60
350kHz to 2.5MHz
350kHz to 2.5MHz
290µA
1
150
4x5 QFN-28,TSSOP-28E
LT1936
Step-Down
3.6 to 36
1.40
1.20
500kHz
n/a
1.9
1
150
MSOP-8E
LT3508
Dual Step-Down
3.7 to 36
2x1.40
0.80
250kHz to 2.5MHz
250kHz to 2.5MHz
4.6
1
150
4x4 QFN-24,TSSOP-16E
LT3685
Step-Down
3.6 to 38, 60 Max
2.00
0.79
200kHz to 2.4MHz
250kHz to 2MHz
0.8
1
125
3x3 DFN-10, MSOP-10E
LT3684
Step-Down
3.6 to 34, 36 Max
2.00
1.26
300kHz to 2.8MHz
n/a
0.8
1
125
3x3 DFN-10, MSOP-10E
LT1912
Step-Down
3.6 to 36
2.00
0.79
250kHz to 500kHz
n/a
0.8
1
125
3x3 DFN-10, MSOP-10E
LT3500
Step-Down + LDO Controller
3.6 to 40
2.00
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
2.5
12
150
3x3 DFN-12
LT3697
Step-Down w/ Cable Comp
5 to 40, 60 Max
2.50
5.00
200kHz to 2.2MHz
200kHz to 2.2MHz
700µA
1
150
MSOP-16E
LT3694/-1
Step-Down + Dual LDO Controller
4 to 37, 70 Max
2.60
0.75
250kHz to 2.5MHz
250kHz to 2.5MHz
1.0
1
125
4x5 QFN-28, TSSOP-20E
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
2.7
1
150
4x5 QFN-28, TSSOP-24E
LT3514
Triple Step-Down + LDO Controller
3.2 to 40
2A+1A+1A
+10mA
LT3504
Quad Step-Down
3.2 to 40
4x1.0
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
7
1
125
4x5 QFN-28
LT3507/A
Triple Step-Down + LDO Controller
4 to 36
2.7, 2x1.8
0.80
250kHz to 2.5MHz
250kHz to 2.5MHz
7
1
150
5x7 QFN-38
LT3692/A
Dual Step-Down
3 to 36, 60 Max
2x3.5
0.80
250 to 2.25MHz
250kHz to 2MHz
4.0
10
150
5x5 QFN-32, TSSOP-38E
LT3693
Step-Down
3.6V to 36V
3.50
0.79
200kHz to 2.4MHz
250kHz to 2MHz
1.3
1
125
3x3 DFN-10, MSOP-10E
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
40V, Step-Down DC/DC Converters with Cable Drop Compensation for USB Applications
LT8697: 42V, 2.5A Synchronous Buck Regulator with
Cable Drop Compenstation for USB Applications
Features:
• Accurate 5V Output: ±1.4% Over Full Operating
Junction Temperature Range
Programmable Cable Drop Compensation
•
Programmable Output Current Limit
•
Output Current Monitor
•
Dual Input Feedback Permits Regulation on Output
of USB Switch
•
•
VIN
6V TO 42V
1µF
Forced Continuous Mode for Fast Load Step
Low Recovery
10nF
Ultralow Quiescent Current Burst Mode Operation:
3.6μA IQ Regulation 12VIN to 5VOUT
BST
VIN
4.7µF
SW
EN/UV
PG
SYS
LT8697
INTVCC
ICTRL
ISP
SYNC
ISN
TR/SS
USB5V
RT
RCBL
18.2k
GND
PGND
0.1µF
VOUT
2.7µH
CABLE
0.12Ω
0.02Ω
10k
47µF
+
LOAD
•
2MHz 5V Step-Down Converter with Cable Drop Compensation and Output Current Monitor
100k
–
IOUT MONITOR
0.4A/V
16.5k
0.12Ω
5.75
6
VOUT
5.50
5
VOLTAGE (V)
Actual Size
Demo Board
4
VLOAD
5.00
3
4.75
2
ILOAD
4.50
Transient
Response with
0.24Ω Total RLINE
CURRENT (A)
5.25
LT8697
VLOAD
5V, 2.1A
1
4.25
0
–50 0 50 100 150 200 250 300 350 400 450
TIME (µs)
40V, Low Quiescent Current Monolithic Regulators with Cable Compensation
Part
Number
Device Architecture
VIN
Range(V)
IOUT
(A)
VOUT(MIN)
(V)
Frequency
(MHz)
Ext Sync
Range (MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
LT3086
Low Dropout Linear Regulator
1.65 to 40
2.1
0.4
n/a
n/a
1.2mA
1
125
5x4 QFN-16, TSSOP-16E,
DDPak-7, TO-220
LT8697
Synchronous Step-Down with Cable Comp
3.4 to 42
2.5
5.0
300kHz to 2.2MHz
300kHz to 2.2MHz
3.6
1
150
3x5 QFN-24
LT3697
Step-Down w/ Cable Comp
5.0 to 40, 60 Max
2.5
5.0
200kHz to 2.2MHz
200kHz to 2.2MHz
700
1
150
MSOP-16E
LT3971-A-5
Step-Down
4.3 to 38
1.3
5.0
200kHz to 2MHz
200kHz to 2MHz
2.2
1
125
MSOP-10E
Package
9
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
36V to 60V Multioutput Step-Down DC/DC Converters
LT8602: 42V Quad Monolithic Synchronous
Step-Down Regulator
Features:
• Two High Voltage Synchronous Buck Regulators:
•
3V to 42V Input Voltage Range: Output Currents Up
to 2.5A and 1.5A
•
Two Low Voltage Synchronous Buck Regulators:
•
2.5V to 5.5V Input Voltage Range: Output Currents
Up to 1.5A
•
250kHz to 2.2MHz Switching Frequency
•
Low Ripple Burst Mode Operation: IQ=25µA
•
6mm x 6mm QFN-40 Package
Channel 1 Start-Up Dropout Performance
Channel 1 Efficiency
100
VIN
90
80
70
EFFICIENCY (%)
10
VOUT
2V/DIV
60
50
40
30
20
100ms/DIV
20Ω LOAD
(250mA IN REGULATION)
LT8602
VIN = 12V
VOUT = 5V
fSW = 1MHz
10
0
0
0.5
1
1.5
LOAD CURRENT (A)
Actual Size
Demo Board
36V to 60V Multioutput Step-Down DC/DC Converters
VOUT(MIN)
Frequency
(MHz)
Ext Sync
Range
(MHz)
IQ
(µA)
ISD
(µA)
Max Junc
Temp (˚C)
Package
0.4
0.8
250kHz to 2.2MHz
300kHz to 2.2MHz
45
1
150
3x5 QFN-24, MSOP-16E
0.4
0.8
250kHz to 2.2MHz
300kHz to 2.2MHz
50
1
150
MSOP-16E
Step-Down + LDO Controller 3.6 to 36, 55MAX
0.5
0.8
750kHz
n/a
1.4mA
1
150
MSOP-12E
Dual Step-Down
3.6 to 36, 60MAX
2 x 0.70
0.80
300kHz to 2.2MHz
300kHz to 2.2MHz
1.9mA
1
150
3x4 DFN-14,MSOP-16E
LT3688
Dual Step-Downw/POR,
Watchdog Timer
3.6 to 36
2 x 0.80
0.80
350kHz to 2.5MHz
350kHz to 2.5MHz
115
1
150
4x4 QFN-24,TSSOP-24E
LT3988
Dual Step-Down
4 to 60, 80MAX
2 x1.0
0.75
250kHz to 2.5MHz
250kHz to 2.5MHz
2mA
1
150
MSOP-16E
LT3508
Dual Step-Down
3.7 to 36
2 x1.40
0.80
250kHz to 2.5MHz
250kHz to 2.5MHz
4.6mA
1
150
4x4 QFN-24 TSSOP-16E
LT3640
Dual Step-Down
4 to 35, 55MAX
1.3 + 1.1
0.60
350kHz to 2.5MHz
350kHz to 2.5MHz
290
1
125
4x5 QFN-28,TSSOP-28E
LT3641
Dual Step-Down
4 to 42, 55MAX
1.3 + 1.1
0.60
350kHz to 2.5MHz
350kHz to 2.5MHz
290
1
150
4x5 QFN-28,TSSOP-28E
LT3500
Step-Down + LDO Controller 3.6 to 40
2.00
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
2.5mA
12
150
3x3 DFN-12
LT8626
Dual Output Synchronous
Step-Down
3.4 to 65
1.5A + 1A
0.97
200kHz to 3MHz
200kHz to 3MHz
5
1
150
3x6 QFN, TSSOP-28E
LT3694/-1
Step-Down + Dual LDO
Controller
4 to 37, 70MAX
2.60
0.75
250kHz to 2.5MHz
250kHz to 2.5MHz
1mA
1
125
4x5 QFN-28, TSSOP-20E
LT3514
Triple Step-Down + LDO
Controller
3.2 to 40
2A + 1A + 1A +
10mA
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
2.7mA
1
150
4x5 QFN-28, TSSOP-24E
LT8616
Dual Output Synchronous
Step-Down
3.4 to 42
2.5A + 1.5A
0.97
200kHz to 3MHz
200kHz to 3MHz
6.5
1
150
3x6 QFN-28, TSSOP-28E
LT3504
Quad Step-Down
3.2 to 40
4 x 1.0
0.80
250kHz to 2.2MHz
250kHz to 2.2MHz
7mA
1
125
4x5 QFN-28
LT3507/A
Triple Step-Down + LDO
Controller
4 to 36
2.7, 1.8
0.80
250kHz to 2.5MHz
250kHz to 2.5MHz
7mA
1
150
5x7 QFN-38,TSSOP-38E
LT3692/A
Dual Step-Down
3 to 36, 60MAX
2 x 3.5
0.8
250kHz to 2.25MHz
250kHz to 2MHz
4mA
10
150
5x5 QFN-32, TSSOP-38E
LT8602
Quad Output Synchronous
Step-Down
3.0 to 42
2.5A + 1.5A + 1.5A
+ 1.5A
0.8
250kHz to 2.2MHz
250kHz to 2.2MHz
25
1
150
6x6 QFN-40
LT8603
Quad Output Synchronous
Step-Down with Pre-Boost
Controller
2.0 to 42
2.5A + 1.5A + 1.5A 0.6
+ 2A
250kHz to 2.2MHz
250kHz to 2.2MHz
35
1
150
6x6 QFN-40
LT3992
Dual Step-Down
3 to 60
0.8
250kHz to 2MHz
250kHz to 2MHz
4.7mA
6
150
5x5 QFN-32, TSSOP-38E
Part
Number
Device
Architecture
VIN
Range
IOUT
(A)
LT3667
Step-Down with Dual LDOs
4.3 to 40
LT3668
Step-Down with Dual
Tracking LDOs
4.3 to 40
LT3645
LT3509
3x2
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
36V Low Quiescent Current Synchronous DC/DC Controllers
LTC3859AL: Buck/Buck/Boost Synchronous
Controller with Burst Mode Operation
Automotive Input to VOUT = 5V & 8.5V
VOUT3
REGULATED AT 10V WHEN VIN < 10V
FOLLOWS VIN WHEN VIN > 10V
Features:
• Dual Buck Plus Single Boost Synchronous Controllers
•
Low Operating IQ: 28μA (One Channel On)
•
Wide Bias Input Voltage Range: 4.5V to 38V
•
Buck Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
1.2µH
2mΩ
VIN
2.5V TO 38V
(START-UP ABOVE 5V)
220µF
VOUT2 = 8.5V
95
90
Boost Output Voltage Up to 60V
LTC3859A
Demo Board
85
0.1µF
SW1, 2, 3
75
70
65
FIGURE 12 CIRCUIT
ILOAD = 2A
55
50
TG1
TG3
SW1
SW3 LTC3859AL
BG1
5
0
10
15
RUN1, 2, 3
EXTVCC
BOOST1, 2, 3
25
30
35
40
6mΩ
68.1k 357k
TG2
SW2
BG2
6.5µH
8mΩ
68.1k 649k
INPUT VOLTAGE (V)
36V Input Low Quiescent Current Synchronous DC/DC Controllers
VOUT(MIN) (V)
Frequency
(kHz)
Ext Sync
Range
(kHz)
IQ
(µA)
ISD
(µA)
Max Junc
Temp (˚C)
Package
20
0.8
50 to 900
75 to 850
50
14
150
QFN-20, TSSOP-20
4 to 36
20
0.8
140 to 650
140 to 650
30
14
125
DFN-16, SSOP-16
4 to 36
20
0.8
140 to 650
140 to 650
30
14
125
QFN-20, TSSOP-20
Synchronous Step-Down
4 to 36
20
0.8
140 to 650
140 to 650
80
10
125
DFN-16, SSOP-16
Synchronous Step-Down
4 to 36
20
0.8
140 to 650
140 to 650
80
10
125
QFN-20, TSSOP-20
LTC3857/-1
Dual Synchronous Step-Down
4 to 38
20/20
0.8
140 to 650
50 to 900
50
8
125
QFN-32/SSOP-28
LTC3858/-1
Dual Synchronous Step-Down
4 to 38
20/20
0.8
140 to 650
50 to 900
170
8
125
QFN-32/QFN-28/SSOP-28
LTC3859AL
Buck/Buck/Boost
4.5 to 38
10/10/10
0.8
50 to 900
75 to 850
28
10
150
QFN-38/TSSOP-38
LTC3786
Synchronous Step-Up
4.5 to 38
10
Up to 60V
50 to 900
75 to 850
50
14
150
QFN-16, TSSOP-16
LTC1871/-1
Step-Up
2.5 to 36
10
3.3
50 to 1MHz
65 to 1.3MHz 250
10
150
MSOP-10
Part
Number
Device
Architecture
VIN
Range (V)
IOUT (A)*
LTC3807
Synchronous Step-Down
4 to 38
LTC3834
Synchronous Step-Down
LTC3834-1
Synchronous Step-Down
LTC3835
LTC3835-1
36V/40V Input DC/DC Controllers
Part
Number
Device
Architecture
VIN
Range (V)
IOUT
(A)*
VOUT(MIN)
(V)
Frequency
(kHz)
Ext Sync
Range (kHz)
IQ
(mA)
ISD
(µA)
Max Junc
Temp (˚C)
Package
LTC3851A/-1
Synchronous Step-Down
4 to 40
25
0.8
250 to 750
250 to 750
1
15
150
QFN-16, SSOP-16
LTC3878
Synchronous Step-Down
4 to 38
25
0.8
Constant On-time
n/a
1.5
18
125
SSOP-16
LTC3879
Synchronous Step-Down
4 to 38
25
0.6
Constant On-time
n/a
1.5
18
125
QFN-16, MSOP-16
LTC3866
Synchronous Step-Down
4.5 to 36
25
0.6
250 to 770
250 to 770
3.2
30
125
4x4 QFN-24, TSSOP-24
LTC3775
Synchronous Step-Down
4.5 to 38
25
0.6
250 to 1MHz
250 to 1MHz
3.5
14
125
MSOP-16, QFN-16
LTC3833
Synchronous Step-Down
4.5 to 38
25
0.6
200 to 2MHz
200 to 2MHz
2
15
125
QFN-20. TSSOP-20
LTC3839
2-Phase Synchronous Step-Down
4.5 to 38
50
0.6
200 to 2MHz
200 to 2MHz
3
15
125
QFN-32
LTC3850
Dual Synchronous Step-Down
4 to 30
20/20
0.8
250 to 780
250 to 780
850µA
30
125
QFN-32, SSOP-28
LTC3855
Dual Synchronous Step-Down
4.5 to 38
25/25
0.6
250 to 770
250 to 770
3.5
30
125
6x6 QFN-40, SSOP-38
LTC3865/-1
Dual Synchronous Step-Down
4.5 to 38
25/25
0.6
250 to 770
250 to 770
3
30
125
QFN-32, TSSOP-38
LTC3869/-2
Dual Synchronous Step-Down
4 to 38
25/25
0.6
250 to 780
250 to 780
3
30
125
QFN-28, TSSOP-28
LTC3787
Synchronous Step-Up
4.5 to 40
20
Up to 60
50 to 900
75 to 850
135µA
8
150
QFN-28, SSOP-28
LTC3788/-1
Dual Synchronous Step-Up
4.5 to 38
2 X 10
Up to 60
50 to 900
75 to 850
125µA
8
150
QFN-32
LTC3862/-1/-2
2-Phase Step-Up
4 to 36
30
*
50 to 650
50 to 650
1.8
30
150
QFN-24, SSOP-24, TSSOP-24
LT3782A
2-Phase Step-Up
4 to 40
30
7.0
150 to 500
180 to 715
11
40
125
SSOP-28
LT3757
Boost, SEPIC, Flyback and Inverter
2.9 to 40
5
1.6
100 to 1MHz
100 to 1MHz
1.6
1
150
DFN-10, MSOP-10
LTC3789
Synchronous Buck-Boost
4 to 36
10
0.8
200 to 600
200 to 600
3
40
125
SSOP-24, 5x5 QFN-32
LT3759
Boost, SEPIC, Inverter
1.6 to 42
5
1.6
100 to 1MHz
100 to 1MHz
350μA
1
150
MSOP-12
* Dependent on External FET
VOUT1
5V
5A
220µF
VOUT1
SENSE2+
TRACK/SS1, 2 SENSE2–
VFB2
SS3
PGND SGND
0.1µF
20
4.9µH
SENSE1+
SENSE1–
VFB1
ITH1, 2, 3
60
Efficiency vs
Input Voltage
VBIAS
SENSE3–
SENSE3+
INTVCC
4.7µF
VOUT1 = 5V
80
VFB3
BG3
100
EFFICIENCY (%)
•
1µF
499k
68.1k
Outputs Remain in Regulation Through Cold Crank Down
to 2.5V
•
220µF
VOUT2
8.5V
3A
68µF
11
12
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
µModule Power Products
Resembling surface mount ICs, our family of μModule® (micromodule) power products includes complete system-in-a-package solutions
for DC/DC point-of-load conversion, and LED illumination. The components are integrated into a compact thermally enhanced LGA or
BGA package. The –40°C to 150°C tested LTM®8008, for example, is targeted for use in engine control units, and –40°C to 125°C tested
products power the latest electronics in the dashboard, console, body and interior lighting. The high level of integration enables specific
µModule products to be certified compliant with the EN55022 class B EMI standard.
Inside the LTM8058 Isolated µModule Converter in 9 x 11.25 x 4.92mm BGA package
9mm
Isolated Transformer
4.9mm
Surface Mount
Resistors & Capacitors
Linear Technology Silicon
Surface Mount
Resistors & Capacitors
11.25mm
Linear Technology’s New
UL60950 Recognized Isolated
µModule Converters (LTM8058 Shown)
μModule (micromodule) power products simplify implementation, verification, and manufacturing
of complex power circuits by integrating the function in a compact molded plastic package.
Packages (mm)
Isolated
EN55022 Class B
LED Driver
Step-Up & Down
Step-Down
Benefits
Reduce ground
noise to improve
signal integrity.
Reduce emitted electro-magnetic
interference (EMI) to improve
system reliability and improve
chances of passing government
radiated emissions standards.
Power and dim (up to a
3000:1 ratio) LEDs with
as few as three external
components.
Maintain a regulated output
voltage while the input
voltage could fluctuate
above, below or equal to
the desired output voltage
with a small PCB footprint.
Choose from a wide range of regulated
output voltage options from 0.6V to 34V
that are tailored to meet the specific
operating requirements of loads from
FPGAs and SoCs to high performance
ADCs and amplifiers up to intermediate
bus voltages.
How it’s done
Internal transfomer
provides galvanic
isolation between
primary and
secondary sides.
Shielded inductors, Pi-ilters,
switch gate drive control and PCB
layout exemplified by the demo
board reduce EMI. These devices
are certified to meet EN55022B
with margin.
Integrated inductor,
switches, LED current
controller and compensation
are incorporated in a LGA
package.
The buck-boost controller
seamlessly transitions the
internal H-bridge power
switches between buck and
boost operation.
A combination of state of the art Mid &
High Voltage Wafer Processes, superb
IC design and characterization create a
wide portfolio of products each targeted
to meet the specific needs.
15 x 15
•
11.25 x 15
•
•
9 x 15
•
9 x 11.25
•
•
•
•
•
•
•
6.25 x 11.25
•
•
6.25 x 6.25
•
•
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
–40°C to 150°C Tested Products
Input Voltage
Output Voltage
Min
Max
Min
Max
Output Current (A)
Outputs
Adjustable Switching
Frequency Range
Part Number
Package Dimensions (mm)
3
72
3.3
5
0.5, 0.3, 0.15, 0.15, 0.15, 0.15
6
100kHz to 1MHz
LTM8008
15x15x2.8 LGA
Step-Up & Down
–40°C to 125°C Tested Products
Input Voltage
Min
Max
Min
Max
Output
Current
(A)
4.5
20
0.6
5
15
1
x4 (60A)
-
-
LTM4627
15 x 15 x 4.3 LGA, 15 x 15 x 4.9 BGA
4.5
20
0.6
5.5
20
1
x4 (80A)
-
-
LTM4637
15 x 15 x 4.3 LGA, 15 x 15 x 4.9 BGA
4.5
26.5
0.8
5
6
1
x2 (12A)
-
-
LTM4618
9 x 15 x 4.3 LGA
4.5
26.5
0.8
5
4
2
x2 (8A)
-
-
LTM4619
15 x 15 x 2.8 LGA
4.5
26.5
0.6
5.5
8
2
x4 (32A)
-
-
LTM4628
15 x 15 x 4.3 LGA, 15 x 15 x 4.9 BGA
4.5
28
0.6
5
6
1
x2 (12A)
•
-
LTM4606
15 x 15 x 2.8 LGA, 15 x 15 x 3.4 BGA
4.75
28
0.8
5.5, 13.5
5,5,4
3
x2(10A)
-
-
LTM4634
15 x 15 x 5.0 BGA
3
36
0.8
5
0.5
1
-
•
-
LTM8021
6.25 x 11.25 x 2.8 LGA
4.5
36
1.2
18
0.6
1
-
-
-
LTM8029
6.25 x 11.25 x 3.4 BGA
3.6
36
0.8
10
1
1
-
-
-
LTM8022
9 x 11.25 x 2.8 LGA
6
36
0
24
1
5
x10 (10A)
-
•
LTM8001
15 x 15 x 3.4 BGA
3.6
36
0.8
10
2
1
-
-
-
LTM8023
9 x 11.25 x 2.8 LGA, 9 x 11.25 x 3.4 BGA
3.6
36
0.8
10
2
1
-
•
-
LTM8032
9 x 15 x 2.8 LGA, 9 x 15 x 3.4 BGA
EN55022 Class B 3.6
36
0.8
24
3
1
x2 (6A)
•
-
LTM8033
11.25 x 15 x 4.3 LGA, 11.25 x 15 x 4.9 BGA
6
36
0.8
1.8
5
1
-
-
•
LTM8028
15 x 15 x 4.9 BGA
6
36
1.2
24
5
1
x2 (10A)
-
-
LTM8026
11.25 x 15 x 2.8 LGA
5
36
3.3
15
5
1
x2 (10A)
•
-
LTM4612
15 x 15 x 2.8 LGA
5
36
3.3
15
8
1
x2 (16A)
•
-
LTM4613
15 x 15 x 4.3 LGA
3.6
58
0.8
24
2
1
x4 (8A)
-
-
LTM8050
9 x 15 x 4.9 BGA
4.5
60
2.5
24
4
1
-
-
-
LTM8027
15 x 15 x 4.3 LGA
Step-Down
Output Voltage
Input Voltage
Outputs
Parallelable
Outputs
(Total IOUT)
EN55022B
Certified
Low
Output
Noise
Part Number
Package Dimensions (mm)
Output Voltage
Min
Max
Min
Max
Output Current (A)
Outputs
Parallelable Outputs
(Total IOUT)
Part Number
Package Dimensions (mm)
4.5
20
0.8
16
5
1
x4 (20A)
LTM4605
15x15x2.8 LGA
4.5
36
0.8
24
5
1
x4 (20A)
LTM4607
15x15x2.8 LGA
Step-Up & Down 4.5
36
0.8
34
4
1
x4 (16A)
LTM4609
15x15x2.8 LGA, 15x15x3.4 BGA
Input Voltage
Output Voltage
Min
Max
Min
Max
LED Current (A)
Outputs
Supported Dimming
Method
Part Number
Package Dimensions (mm)
3
30
2
32
0.35
1
Analog & PWM
LTM8042-1
9x15x2.8 LGA
3
30
2
32
1
1
Analog & PWM
LTM8042
9x15x2.8 LGA
LED Driver
Input Voltage
Isolated
Output Voltage
Min
Max
Min
Max
Output
Power (W)
Outputs
Low Output
Noise
Isolation
Voltage
UL60950
Recognized
Part Number
Package Dimensions (mm)
3.1
32
2.5
12
1.5
1
-
725V DC
-
LTM8047
9 x 11.25 x 4.9 BGA
3.1
32
1.2
12
1.5
2
•
725V DC
-
LTM8048
9 x 11.25 x 4.9 BGA
3.1
31
2.5
12
1.5
1
-
3kV DC
•
LTM8057
9 x 11.25 x 4.9 BGA
3.1
31
1.2
12
1.5
2
•
3kV DC
•
LTM8058
9 x 11.25 x 4.9 BGA
3.1
31
1.8
12
2.5
1
-
3kV DC
•
LTM8046
9 x 15 x 4.9 BGA
13
14
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
High Voltage Power Managers and Battery Chargers
LTC4020: 55V Buck-Boost Multi-Chemistry
Battery Charger
Features:
• Wide Voltage Range: 4.5V to 55V Input, Up to
55V Output (60V Absolute Maximums)
High Efficiency USB/Automotive Battery Charger with Overvoltage Protection
VIN
•
Synchronous Buck-Boost DC/DC Controller
•
Li-Ion and Lead-Acid Charge Algorithms
•
±0.5% Float Voltage Accuracy
•
±5% Charge Current Accuracy
•
Instant-On for Heavily Discharged Batteries
•
Ideal Diode Controller Provides Low Loss PowerPath™
•
Input Voltage Regulation for High Impedance
Input Supplies
•
Onboard Timer for Protection and Termination
•
Bad Battery Detection with Auto-Reset
•
NTC Input for Temperature Qualified Charging
•
Binary Coded Open-Collector Status Pins
•
Low Profile (0.75mm) 38-Pin 5mm × 7mm QFN Package
RSENSEA
BUCK-BOOST
DC/DC CONVERTER
PowerPath BATTERY CHARGER
VOUT
RCS
LTC4020
RSENSEB
RNTC
High Voltage Battery Chargers and Power Managers
Part Number
Max
Charge
Current
Wall (A)
# of
Battery
Cells
(Series)
Max
Charge
Current
USB (mA)
LTC4121
0.4
3.6V to 18V n/a
Topology
Input Voltage (V)
Standby
Current
(µA)
Switching
4.3V to 40V
2.5
IBAT
Drain
Current
(µA)
Charge
RDS(ON) Ideal
Diode
Package
<1
Timer
n/a
3x3 QFN-16
3x6 DFN-22
LTC4089*
1.2
1
500
Linear
4.35V to 5.5V USB, 6V to 36V, 40V max adapter
50
2.5
Timer + C/10
215mΩ
<50mΩ (opt.)
LTC4089-5
1.2
1
500
Linear
4.35V to 5.5V USB, 6V to 36V, 40V max adapter
50
2.5
Timer + C/10
215mΩ
<50mΩ (opt.)
3x6 DFN-22
LTC4089-1*†
1.2
1
500
Linear
4.35V to 5.5V USB, 6V to 36V, 40V max adapter
50
2.5
Timer + C/10
215mΩ
<50mΩ (opt.)
3x6 DFN-22
LTC4090
1.2
1
500
Linear
4.35V to 5.5V USB, 6V to 38V, 60V max adapter
50
2.5
Timer + C/10
215mΩ
<50mΩ (opt.)
3x6 DFN-22
LTC4098*
1.5
1
700
Switching
4.35V to 5.5V USB, 6V to 38V & 60V transient adapter, 66V OVP
25
3.5
Timer + C/10
180mΩ
<50mΩ (opt.)
3x4 QFN-20
LT3650-4.2/8.4
2.0
1-2
n/a
Switching
4.75V to 32V / 9V to 32V, 40V abs max
85
15
Timer + C/10
n/a
3x3 DFN-12, TSSOP-16
LT3652/HV
2.0
3.3V to
14.4/18V
n/a
Switching
4.95V to 32/34V, 40V abs max
85
15
Timer + C/10
n/a
3x3 DFN-12, MSOP-12E
LTC4020
20A
up to 55V
n/a
Switching
4.5V to 55V
30
10
Timer + C/10
n/a
5x7 QFN-38
LTC4000 **
>20A
3V to 60V
n/a
n/a
3V to 60V
400
20
Timer or C/x
external
4x5 QFN-28, SSOP-28
* Bat-Track adaptive output control
** Battery charging controller - works in conjunction with externally compensated switching regulator
† 4.1V cell voltage
For a more detailed review of Linear’s extensive portfolio of battery chargers, see the Battery Charger and Management Solutions brochure.
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
High Voltage Charge Pumps
5VOUT Efficiency vs Output Current
LTC3245: Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump
90
Features:
• 2.7V to 38V VIN Range 80
EFFICIENCY (%)
12V to 5V Efficiency = 81% Multimode Operation (2:1, 1:1, 1:2) with Automatic
Mode Switching
•
Low Noise, Constant Frequency Operation
•
Pin Selectable Burst Mode Operation
•
VOUT: Fixed 3.3V, 5V or Adjustable (2.5V to 5V)
•
IOUT Up to 250mA
•
Overtemperature and Short-Circuit Protection
•
Operating Junction Temperature: 150°C Maximum
•
Thermally Enhanced 12-Pin MSOP and Low Profile
•
12-Pin (3mm x 4mm) DFN Package
300
60
250
50
200
40
PLOSS
30
20
LTC3245
100
50
10
0.1
Actual Size
Demo Board
150
PLOSS (mW)
IQ = 18μA Operating; 4μA in Shutdown •
350
EFFICIENCY
70
•
•
400
VIN = 12V
1
10
IOUT (mA)
100
0
1000
Efficient Regulated 5V Output
1µF
C+
C–
LTC3245
OUTS/ADJ
SEL2
1µF
VOUT = 5V
IOUT UP TO 250mA
VOUT
VIN
VIN = 2.7V TO 38V
500k
PGOOD
BURST
10µF
GND
SEL1
Product
Topology
VIN Range (V)
Max IOUT
VOUT (V)
IQ (µA)
LDO
Post-Regulator
Max Junc
Temp (°C)
Package
LTC3255
Buck
4-48
50mA
2.4 to 12.5
20
No
150
3x3 DFN-10, MSOP-10E
LTC3245
Buck-Boost
2.7-38
250mA
3.3, 5, Adj
18
No
150
3x4 DFN-12, MSOP-12E
LTC3260
Dual/Inverting
4.5-32
100mA
±Adj
100
Yes
150
3x4 DFN-14, MSOP-16E
LTC3261
Inverting
4.5-32
100mA
-VIN
60
No
150
MSOP-12E
Available Output Current vs Input Current
40
37
AVAILABLE OUTPUT CURRENT (mA)
LTC3255: Wide VIN Range Fault Protected
50mA Step-Down Charge Pump
Features:
• Input Voltage Range: 4V to 48V
•
Adjustable Regulated Output: 2.4V to 12.5V
•
Output Current: 50mA Maximum
•
16μA Quiescent Current in Regulation at No Load
LTC3255
•
Input Fault Protection from –52V to 60V
Actual Size
Demo Board
•
Multimode Charge Pump (2:1, 1:1) with Automatic
Mode Switching Maintains Regulation Over
Wide VIN Range
•
Input Voltage Shunt Mode for Current-Fed
Applications
•
Power Good Output
•
Overtemperature and Short-Circuit Protection
•
Operating Junction Temperature: 150°C Maximum
•
Thermally Enhanced 10-Lead MSOP and
10-Lead (3mm × 3mm) DFN packages
34
31
28
AVAILABLE
IOUT
25
22
INCREASED
IOUT CAPABILITY
19
16
13
INPUT
CURRENT
10
7
4
48
61
0 12 14 16
INPUT CURRENT (mA)
18
20
7.4mA DC Supply from 4mA to 20mA Current Loop
1µF
+
VIN
EN
4mA TO 20mA INPUT
>10V COMPLIANCE
1µF
C–
LTC3255
220k
PGOOD
BIAS
OUTPUT
3.3V
7.4mA
VOUT
PGOOD
2.15M
SHUNT
0.1µF
–
C+
GND
FB
1.21M
10µF
15
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
36V to 80V Synchronous Buck-Boost Switching Regulators
LTC3115-1: 40V, 2A Synchronous Buck
Boost DC/DC Converter
Features:
• Wide VIN Range: 2.7V to 40V
Automotive Input to 5VOUT
•
Wide VOUT Range: 2.7V to 40V
•
1A Output Current for VIN ≥ 3.6V, VOUT = 5V
•
2A Output Current in Step-Down Operation
for VIN ≥ 6V
10µH
0.1µF
2.7V TO
40V
4.7µF
BURST PWM
OFF ON
0.1µF
SW2 BST2
BST1 SW1
PVOUT
PVIN
VIN
LTC3115-1
PWM/SYNC
RUN
RT
47.5k
GND
PGND
VC
FB
PVCC
VCC
47µF
3300pF
60.4k
1M
33pF
5V
1A VIN > 3.6V
2A VIN ≥ 6V
15k
249k
4.7µF
LTC3115-1
Actual Size
Demo Board
100
VIN = 3.6V
VIN = 5V
VIN = 12V
VIN = 24V
VIN = 36V
90
80
EFFICIENCY (%)
16
70
60
50
40
Efficiency vs
Output Current
30
20
0.01
0.10
LOAD CURRENT (A)
1
36V to 80V Synchronous Buck-Boost Switching Regulators
Part
Number
Device Architecture
VIN
Range(V)
IOUT
(A)
VOUT
Range(V)
Frequency
(kHz)
Ext Sync
Range (kHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3433
Buck-Boost Regulator
4 to 60
0.4
3.3 to 20
200
n/a
100
10
125
TSSOP-16E
LTC3114
Synchronous Buck-Boost Regulator
2.2 to 40
1
2.7 to 40
1.2MHz
1.2MHz
30
1
150
3x5 DFN-16, TSSOP-16E
LTC3115-1 Synchronous Buck-Boost Regulator
2.7 to 40
2
2.7 to 40
100kHz to 2MHz
100 to 2MHz
30
1
150
4x5 DFN-20, TSSOP-20E
LT3790
Synchronous Buck-Boost Controller
4.7V to 60V 10*
1.2 to 60
200 to 700
200 to 700
3mA
1
150
TSSOP-38E
LTC3780
Synchronous Buck-Boost Controller
4 to 36
10*
0.8 to 30
200 to 400
200 to 400
1.5mA
55
125
SSOP-24, 5x5 QFN-32
LTC3789
Synchronous Buck-Boost Controller
4 to 40
10*
0.8 to 38
200 to 400
200 to 400
3mA
40
125
SSOP-24, 4x5 QFN-28
LT8705
Synchronous Buck-Boost Controller
2.8 to 80
20*
1.3 to 80
100 to 400
100 to 400
2.7mA
1
125
5x7 QFN-38, TSSOP-38E
*Dependent on External FET.
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Low Voltage (<6V) Point-of-Load Monolithic Synchronous Step-Down Switching Regulators
LTC3615: Dual 4MHz, 3A Synchronous
Step-Down DC/DC Converter
Features:
• High Efficiency: Up to 94%
5VIN Dual Output Synchronous Step-Down Converter
Dual Outputs with 2 × 3A Output Current Capability
•
Low Output Ripple Burst Mode Operation: IQ = 130μA
•
2.25V to 5.5V Input Voltage Range
•
±1% Output Voltage Accuracy
LTC3615
Actual Size
Demo Board
100
90
80
70
60
50
40
30
20
10
0
VIN
100µF
SVIN
PVIN1
RUN1
TRACK/SS1
PGOOD1
LTC3615
ITH1
SRLIM
RT/SYNC
MODE
10
1
0.1
0.01
POWER LOSS (W)
EFFICIENCY (%)
•
VIN = 3.3V 0.001
VIN = 4V
VIN = 5V
0.0001
0.01
0.001
0.11
OUTPUT CURRENT (A)
0.47µH
SW1
422k
VOUT1
1.8V/3A
47µF
FB1
210k
SW2
PHASE
RUN2
TRACK/SS2
PGOOD2
SGND
ITH2
2.25MHz
VOUT = 2.5V
PVIN2
0.47µH
665k
VOUT2
2.5V/3A
47µF
FB2
PGND
210k
Low Voltage (<6V) Point-of-Load Monolithic Synchronous Step-Down Switching Regulators
Part
Number
Device
Architecture
VIN
Range(V)
VOUT(MIN)
(V)
IOUT (A)
Frequency
(MHz)
Ext Sync
Range
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LTC3410/B
Synchronous
2.5 to 5.5
0.8
0.3
2.25
n/a
26
1
125
SC70
LTC3542
Synchronous
2.5 to 5.5
0.6
0.5
2.25
1MHz to 3MHz
26
1
125
2x2 DFN-6, ThinSOT
LTC3547/B
Dual Synch
2.5 to 5.5
0.6
0.3/0.3
2.25
n/a
40
1
125
2x3 DFN-8
LTC3406A/AB
Synchronous
2.5 to 5.5
0.6
0.6
1.50
n/a
20
1
125
ThinSOT
LTC3406AB-2
Synchronous
2.5 to 5.5
0.6
0.6
2.25
n/a
200
1
125
ThinSOT
LTC3448
Synchronous
2.5 to 5.5
0.6
0.6
2.25
1.4MHz to 4MHz
32
1
125
MSOP-8E, DFN-8
LTC3543
Synchronous
2.5 to 5.5
0.6
0.6
2.25
1MHz to 3MHz
45
1
125
2x3 DFN-6
LTC3544/B
Quad Synch
2.25 to 5.5
0.8
0.3/0.2/0.2/0.1
2.25
n/a
80
1
125
3x3 QFN-16
LTC3560
Synchronous
2.5 to 5.5
0.6
0.8
2.25
1MHz to 3MHz
16
1
125
ThinSOT
LTC3561
Synchronous
2.6 to 5.5
0.8
1.0
850kHz to 4MHz
n/a
240
1
125
3x3 DFN-10
LTC3446
Synchronous + LDOs
2.7 to 5.5
0.4
1.0/0.3/0.3
2.25
n/a
140
1
125
4x3 DFN-14
LTC3407A
Dual Synch
2.5 to 5.5
0.6
0.6/0.6
1.50
1.5MHz
40
1
125
MSOP-10, 3x3 DFN-10
LTC3409
Dual Synch
1.6 to 5.5
0.6
0.6/0.6
1.70/2.60
1MHz to 3MHz
65
1
125
3x3 DFN-8
LTC3419
Dual Synch
2.5 to 5.5
0.6
0.6/0.6
2.25
n/a
55
1
125
MSOP-10, 3x3 DFN-10
LTC3548
Dual Synch
2.5 to 5.5
0.6
0.8/ 0.4
2.25
2.25MHz
40
1
125
MSOP-10, 3x3 DFN-10
LTC3411A
Synchronous
2.5 to 5.5
0.8
1.25
300kHz to 4.0MHz
400kHz to 4MHz
40
1
125
3x3 DFN-10, MSOP-10
LTC3407A-2
Synchronous
2.5 to 5.5
0.6
0.8/ 0.8
2.25
2.25MHz
40
1
125
MSOP-10, 3x3 DFN-10
LTC3568
Synchronous
2.5 to 5.5
0.8
1.8
850kHz to 4MHz
400kHz to 4MHz
60
1
125
3x3 DFN-10,
LTC3417A-2
Dual Synch
2.25 to 5.5
0.8
1.5/1.0
2.25
2.25MHz
125
1
125
TSSOP-20E, 3x5 DFN-20
LTC3545
Triple Synch
2.25 to 5.5
0.6
0.8/0.8/0.8
2.25
1MHz to 3MHz
58
1
125
3x3 QFN-16
LTC3612
Synchronous
2.25 to 5.5
0.6
3.0
300kHz to 4.0MHz
300kHz to 4.0MHz
70
1
150
TSSOP-20E, 3x4 QFN-20
LTC3412A
Synchronous
2.25 to 5.5
0.8
3.0
300kHz to 4.0MHz
300kHz to 4.0MHz
64
1
125
TSSOP-16E, QFN
LTC3414
Synchronous
2.25 to 5.5
0.8
4.0
300kHz to 4.0MHz
300kHz to 4.0MHz
64
1
125
TSSOP-20E
LTC3614
Synchronous
2.25 to 5.5
0.6
4.0
300kHz to 4.0MHz
300kHz to 4.0MHz
75
1
150
3x5 QFN-24
LTC3416
Synchronous
2.25 to 5.5
0.8
4.0
300kHz to 4.0MHz
n/a
300
1
125
TSSOP-20E
LTC3615
Dual Synchronous
2.25 to 5.5
0.6
3.0 x 2
300kHz to 4.0MHz
400kHz to 4.0MHz
130
1
150
TSSOP-24E, 4x4 QFN-24
LTC3616
Dual Synchronous
2.25 to 5.5
0.6
6.0
300kHz to 4.0MHz
300kHz to 4.0MHz
75
1
150
3x5 QFN-24
LTC3418
Synchronous
2.25 to 5.5
0.8
8.0
300kHz to 4.0MHz
300kHz to 4.0MHz
300
1
125
5x7 QFN-38
LTC3589
9-Channel Sync PMIC
2.7 to 5.5
0.36
1.6/1.2 x 2/1
1.12/2.5
n/a
8
n/a
150
6x6 QFN-40
LTC3676
8-Channel Sync PMIC
2.5 to 5.5
0.42
2.5 x 2/1.5 x 2
1.12/2.5
n/a
12
n/a
150
6x6 QFN-40
17
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
LT8471
Actual Size
Demo Board
Monolithic Step-Up DC/DC Converters
LT8471: Dual Multitopology DC/DC Converters with 2A Switches
and Synchronization
Features:
• Dual 2A and One 500mA, 50V
Internal Power Switch Channels
•
•
•
2A Primary Channels Can Be
Buck, Boost, SEPIC, ZETA,
Flyback or Inverting DC/DC
Converter
500mA Skyhook Channel
Efficiently Generates Boosted
Input Voltage
20-Lead TSSOP Package
90
6V TO 32V
2.2µF
4
80
3
60
50
POWER LOSS
2
40
30
VCC =
20
10
0
0
0.2
0.40
.6
LOAD CURRENT (A)
1µF
15µH
EFFICIENCY
70
1µF
475k
POWER LOSS (W)
•
Wide Input Voltage Range of
2.6V to 50V
6V to 32V to ±5V, Dual DC/DC Converter
Efficiency and Power Loss Load from
VOUT1 to VOUT2
EFFICIENCY (%)
18
100k
100k
1
6V
18V
32V
0.81
C3
FB1
E1
10µH
LT8471
GND
PG1
PG2
C2
FB2
SS1
SS2
E2
SYNC
0.1µF
316k
VOUT1
5V
1.5A
59k
OV/UV
0.1µF
0
.0
2.2µF
C1
VIN1
VIN2
SHOUT
2.2µF
59k
316k
RT
187k
10µH
VOUT2
–5V
0.65A
High Voltage—Outputs to 84V
Part
Number
Device
Architecture
VIN
Range (V)
VOUT
Max (V)
ISW (A)
Frequency
(MHz)
IQ(mA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3461/A
Boost
2.5 to 16
38
0.30
1.3/3
2.8
1
125
ThinSOT
LT3460
Boost
2.5 to 16
36
0.32
1.3
2.0
1
125
SC70, ThinSOT
LT1945
Boost
1 to 15
±36
0.35
COT
20μA
1
125
MSOP-10
LT3495/B/B-1
Boost
2.3 to 16
40
0.65/0.35
LNAPC
60µA
1
125
2x3 DFN-10
LT1930/A
Boost, SEPIC, Inverting
2.6 to 16
36
1.00
1.2/2.2
4.2/5.5
1
125
ThinSOT
LT8330
Boost, SEPIC, Inverting
2.7 to 40
65
1.00
2MHz
6µA
1
150
3x3 DFN-8, MSOP-8
LT8580
Boost, SEPIC, Inverting
2.55 to 40
65
1.00
200kHz to 1.5MHz
1.2
1
150
2x3 DFN-8, SOT-23-8
LT3467
Boost, SEPIC
2.4 to 16
40
1.10
1.3
1.0
1
125
ThinSOT
LT1946/A
Boost
2.45 to 16
35
1.50
2.7
3.6
1
125
MSOP-8E
LT1618
Boost
1.6 to 18
36
1.50
1.4
1.8
1
125
MSOP-10
LT3580
Boost, SEPIC, Inverting
2.5 to 32
42
2.00
200kHz to 2.5MHz
1.0
1
150
3x3 DFN-8, MSOP-8
LT8495
Boost, SEPIC
2.5 to 32
70
2.00
200kHz to 1.5MHz
9μA
1
150
TSSOP-20E
LT8582
Boost, SEPIC, Inverting
2.5 to 22,40MAX
42
3.00
200kHz to 2.5MHz
2.1
1
125
4x7 QFN-24
LT3581
Boost, SEPIC, Inverting
2.5 to 22,40MAX
42
3.30
200kHz to 2.5MHz
1.9
1
125
3x4DFN-14, MSOP-16E
LT3956
Boost, SEPIC
4.5 to 80
84
3.30
100KHz to 1MHz
1.6
1
125
5x6 QFN-36
LT3958/A
Boost, SEPIC, Inverting
5 to 80
84
3.30
100KHz to 1MHz
1.6
1
125
5x6 QFN-36
LT8471
Boost, Buck, SEPIC, Inverting
2.6 to 50
50
2 x 2A
100KHz to 2MHz
70μA
1
125
TSSOP-20E
LT3957/A
Boost, SEPIC, Inverting
3 to 40
40
5.00
100KHz to 1MHz
1.7
1
125
5x6 QFN-36
LT3579/-1
Boost, SEPIC, Inverting
2.5 to 16,40MAX
42
6.00
200kHz to 2.5MHz
1.9
1
125
4x5 QFN-20, TSSOP-20E
Low Voltage—Outputs to 10V
Part
Number
Device
Architecture
VIN
Range (V)
VOUT
Max (V)
ISW (A)
Frequency
(MHz)
IQ(µA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LTC3459
Synch Boost
1.5 to 5.5
10
0.75
COT
10
1
85
ThinSOT
LTC3526/B
Synch Boost
0.85 to 5
5.25
0.50
1.0
9
1
85
2x2 DFN-6
LTC3528/B
Synch Boost
0.7 to 5.5
5.25
1.00
1.0
12
1
85
2x3 DFN-8
LTC3527
Synch Boost
0.7 to 5.5
5.25
0.8 & 0.40
1.2/2.2
12
1
85
3x3 QFN-16
LTC3458
Synch Boost
1.5 to 6
7.50
1.40
400kHz to 1.5MHz
15
1
85
3x4 DFN-12
LTC3422
Synch Boost
1.0 to 4.5
5.25
1.50
100kHz to 3MHz
25
1
85
3x3 DFN-10
LTC3426
Boost
1.6 to 5.25
5.00
2.00
1.2
600
1
85
ThinSOT
LTC3421
Synch Boost
0.5 to 5
5.25
3.00
3.0
12
1
85
4x4 QFN-24
LTC3425
Synch Boost
0.5 to 4.5
5.25
5.00
8.0
12
1
85
5x5 QFN-32
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
LCD and OLED Biasing—Boost and Inverting Monolithic DC/DC Converters
LT3513: Quad Power Converter for TFT Displays
Features:
• Four Integrated Switches: 3A Buck, 2.5A Boost
•
Quad Output Converter for TFT Displays
0.35A Boost, 0.35A Inverter (Guaranteed Minimum
Current Limit)
•
External NPN LDO Driver
•
Fixed Frequency, Low Noise Outputs
VIN
8V TO 16V
0.47µF
VOFF
–10V
20mA
2.2µF
10µF
60.4k
10µH
69.8k
10k
4.7µH
VLOGIC
5V
0.5A
Start-Up Waveforms
VLDO
3.3V
0.5A
10µF
RUN/SS 2V/DIV
VLOGIC 5V/DIV
AVDD 10V/DIV
VOFF 10V/DIV
30.1k
22µF
10k
42.2k
7.5k
2.7nF
10k
30k
10µF
AVDD
8V
80mA
47nF
15nF
15nF
VON_CLK
6.8µH
15nF
VON
22V
20mA
232k
SW3
FB3
VC3 VC4
GND
4.7k
100k
53.6k
SW2
UVLO LDOPWR VIN
FB2
SW4
PGOOD
D4
NFB4
RUN-SS1
RUN-SS2
BIAS
RUN-SS3/4
BOOST
0.22µF
CT
SW1
LT3513
SENSE+
VON_CLK
SENSE–
VON
FB1
VONSINK
E3
BD
FB5
VC1
C1 VC2
10k
10µH
VLOGIC
5V
178k
165k
VLOGIC
5V
10k
0.47µF
2.2µF
13k
2.2nF
4.7nF 1.5nF
LT3513
VE3 20V/DIV
Actual Size
Demo Board
VON 20V/DIV
IIN(AVG) 1A/DIV
5ms/DIV
LCD and OLED Biasing DC/DC Converters
Part
Number
Device
Architecture
VIN
Range (V)
VOUT
Max (V)
ISW (A)
Frequency
(MHz)
IQ(mA)
ISD(µA)
Max Junc
Temp (˚C)
Package
LT3472/A
Dual-Boost/Inverter
2.20 to 16
±34
0.25/0.30
1.1
2.8
1
125
3x3 DFN-10
LT1946/A
Boost
2.45 to 16
35
1.50
2.7
3.6
1
125
MSOP-8E
LT3487
Dual-Boost/Inverter
2.30 to 16
±28
0.75/0.90
2
3.7
5.3
125
3x3 DFN-10
LT3580
Boost
2.50 to 32
42
2.00
200kHz to 2.5MHz
1.0
1
150
3x3 DFN-8, MSOP-8
LT3471
Dual-Boost/Inverter
2.40 to 16
±40
1.3/1.3
1.2
2.5
1
125
3x3 DFN-10
LT8582
Boost/Inverter
2.50 to 22, 40 Max
42
3.00
200kHz to 2.5MHz
2.1
1
125
4x7 QFN-24
LT3513
Quad-Buck, Boost, Boost/Inverter + LDO Controller
4.50 to 36
±40
3.0/2.5/0.35/0.35
1.8
10
1
125
5x7 QFN-38
19
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
LT3791
Actual Size
Demo Board
High Efficiency LED Drivers
LT3791: 60V, 4-Switch Synchronous
Buck-Boost LED Driver
Features:
• 4-Switch Single Inductor Architecture Allows VIN
Above, Below or Equal to VOUT
•
Wide VIN Range: 4.7V to 60V
•
Wide VOUT Range: 0V to 60V (55V LED)
•
±2% Output Voltage Accuracy
Automotive Input Synchronous Buck-Boost 50W LED Driver
VIN
4.7V TO 58V
RIN
0.003Ω
R1
332k
BUCK
98 BOOST
R4
54.9k
BUCK-BOOST
96
94
VIN
C3
R7 1µF
50Ω
C7
470nF
R2
R3 121k
1M
100
EFFICIENCY (%)
20
IVINN
IVINP
INTVCC
R9
R10
200k 200k
SYNC TWO 100Hz
SIGNALS 300kHz
92
Efficiency vs
Input Voltage
90
10
20
30
40
50
60
C8
0.1µF
R11
1M
INPUT VOLTAGE (V)
INTVCC
TEST2
BST2
BST1
TG1
SWI
BG1
EN/UVLO
OVLO
LT3791
SHORTLED
OPENLED
PWM
SYNC
IVINMON
ISMON
CLKOUT
VREF
M1
M2
CIN
2.2µF
100V
×4
D1 D2
CVCC
4.7µF
C2
0.1µF
C1
0.1µF
M4
R5
1M
M3
R6
44.2k
L1 10µH
SNSP
SNSN
PGND
BG2
SW2
TG2
FB
ISP
ISN
PWMOUT
RT
SGND
RLED
0.05Ω
25V LED
2A
RSENSE
0.004Ω
CTRL
TEST1
SS
VC
CC
CSS
R8
22nF 86.6k
10nF
R12
237k
COUT
4.7µF
50V
×4
M5
f = 300kHz
High Efficiency LED Drivers
Topology
Dimming
Type
Max # of
LEDs X ILED
from 12 VIN
LED
Configuration
Input Voltage
Range (V)
Max.
Output
Voltage (V)
ISW
(A)
Frequency
Range
Over
Voltage
Protection
Max Junc
Temp (˚C)
LT3517
Buck, Boost, Buck/Boost
5000:1 PWM, 20:1 Analog
4x 300mA
Series
3 to 30, 40 Max
45
1.3
250kHz to 2.5MHz
Yes
150
4x4 QFN-16,
TSSOP-16E
LT3474/-1
Buck Mode
400:1 PWM
2 x 1A
Series
4 to 36
9/34
1.6
200kHz to 2MHz
Yes
125
TSSOP-16E
LT3496
Buck, Boost, Buck/Boost
3,000:1 PWM
3 x 10 x 100mA
Triple Parallel Strings 3 to 30, 40 Max
45
3 x 0.75
330kHz to 2.1MHz
Yes
150
4x4 QFN-28
LT3598
6-Channel Boost
3000:1 PWM, 20:1 Analog
6 x 10 x 30mA
Six Parallel Strings
3 to 30
44
1.5
200kHz to 2.5MHz
Yes
125
4x4 QFN-24
LT3599
4-Channel Boost
3000:1 PWM, 20:1 Analog
4 x 10 x 100mA
Four Parallel Strings
3 to 30
44
2.0
200kHz to 2.5MHz
Yes
150
5x5 QFN-32,
TSSOP-28E
LT3518
Buck, Boost, Buck/Boost
5000:1 PWM, 20:1 Analog
8x 300mA
Series
3 to 30, 40 Max
45
2.3
250kHz to 2.5MHz
Yes
150
4x4 QFN-16,
TSSOP-16E
LT3475/-1
Dual Buck Mode
3,000:1 PWM
4 x 1.5A
Dual Parallel Strings
4 to 36, 40 Max
9/34
2x2.3
200kHz to 2MHz
Yes
125
TSSOP-20E
LT3478/-1
Buck, Boost, Buck/Boost
3000:1 PWM
6 x 1A
Series
2.8 to 36, 40 Max 40
4.5
200kHz to 2.25MHz
Yes
125
TSSOP-16E
LT3952
Buck, Boost, Buck/Boost
5000:1 PWM 20:1 Analog
7 x 1A
Series
3 to 42
60
4.5
200kHz to 3MHz
Yes
150
TSSOP-28E
2.8 to 16
36
4 x 1.5
200kHz to 2MHz
Yes
125
5x7 QFN-38
Part
Number
Package
LT3476
Buck, Boost, Buck/Boost Quad
1000:1 PWM
4 x 8 x 350mA
4 x Mutiple Series
String
LT3760
8-Channel Boost
3000:1 PWM, 25:1 Analog
8 x 10 x 100mA
Eight Parallel Strings 6 to 40
45
Ext FET
100kHz to 1MHz
Yes
125
TSSOP-28E
6 to 40
45
Ext FET
100kHz to 1MHz
Yes
125
5x5 QFN-28
80
Ext FET
100kHz to 1MHz
Yes
125
MSOP-16E
LT3754
16-Channel Boost
3000:1 PWM, 25:1 Analog
16 x 10 x 50mA
Sixteen Parallel
Strings
LT3761
Buck, Boost, Buck/Boost LED
Driver w/PWM
3000:1 PWM, 20:1 Analog
14 x 1A
Series
4.5 to 60
LT3797
Triple Buck, Boost, Buck/Boost
3000:1 PWM, 20:1 Analog
3 x 14 x 1A
Series
2.5 to 40, 60 Max 100
Ext FET
100kHz to 1MHz
Yes
125
7x8 QFN-52
LT3795
Buck, Boost, Buck/Boost
3000:1 PWM, 20:1 Analog
14 x 1A
Series
6 to 100
100
Ext FET
100kHz to 1MHz
Yes
150
TSSOP-28E
LT3796
Buck, Boost, Buck/Boost
3000:1 PWM, 20:1 Analog
20 x 400mA
Series
6 to 100
100
Ext FET
100kHz to 1MHz
Yes
150
TSSOP-28E
LT3791
Synchronous Buck-Boost
100:1 PWM, 20:1 Analog
14 x 2A
Series
4.2 to 60
60
Ext FET
200kHz to 700kHz
Yes
150
TSSOP-38E
Ext FET
100kHz to 1MHz
Yes
150
3x3 QFN-16,
MSOP-16E
LT3755
Buck, Boost, Buck/Boost
3000:1 PWM, 20:1 Analog
14 x 1A
Series
4.5 to 40
Limited by ext.
FET
LT3756
Buck, Boost, Buck/Boost
3000:1 PWM, 20:1 Analog
14 x 1A
Series
6 to 100
Limited by ext.
FET
Ext FET
100kHz to 1MHz
Yes
150
3x3 QFN-16,
MSOP-16E
LT3956
Constant Current/Constant
Voltage Converter
3000:1 PWM, 20:1 Analog
18 x 0.35A
Series
4.5 to 80
80
Ext FET
100kHz to 1MHz
Yes
125
5x6 QFN-36
LT3763
High Current Synchronous
Step-Down
3000:1 PWM, 20:1 Analog
4 x 20A
Series
6 to 60
55
Ext FET
200kHz to 1MHz
Yes
125
TSSOP-28E
LT3741
High Current Synchronous
Step-Down
3000:1 PWM, 20:1 Analog
4 x 20A
Series
6 to 36
32
Ext FET
200kHz to 1MHz
Yes
125
4x4 QFN-20,
TSSOP-20E
LT3743
High Current Synchronous
Step-Down
3000:1 PWM, 20:1 Analog
4 x 20A
Series
6 to 36
32
Ext FET
200kHz to 1MHz
Yes
125
4x5 QFN-28,
TSSOP-28E
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Digital Power System Management
Features:
• Digitally Managed Power Supplies Provide Easier
and Faster Design, Debug and Troubleshooting
Capabilities for Multirail Applications
•
•
LTC2974 Quad Digital Power Supply Manager with EEPROM
•
PMBus Compliant Devices All Managed with
Intuitive and Powerful LTpowerPlay™ GUI
AUXFAULTB
•
TG
SW
VDAC0
VDD33**
BG
VSENSEP0
SDA
LTC2974*
SCL
ALERTB
VSENSEM0
CONTROL0
VOUT_EN0
FAULTB0
TSENSE0
FAULTB1
SHARE_CLK
PWRGD
ASEL0
PMBUS
INTERFACE
TO/FROM
OTHER
DEVICES
Applications:
• Infotainment
DC/DC
CONVERTER
ISENSEM0
OV
Up to ±0.25% Max Total Unadjusted Error
Over Temperature
I2C/SMBus Interface, PMBus Command Set
VIN_SNS
ISENSEP0
VPWR
EEPROM Provides User Configuration, Fault
Logging, and Telemetry Readback for Voltage,
Current and Temperature
•
VIN
I–
I+
4.5V < VIBUS < 15V
ASEL1
WP
GND
Battery Management
VFB
LOAD
SGND
RUN/SS
GND
MMBT3906
TO µP
RESETB
INPUT
0.1µF
*SOME DETAILS OMITTED FOR CLARITY
ONLY ONE OF FOUR CHANNELS SHOWN
WATCHDOG
TIMER INTERRUPT
WDI/RESETB
**LTC2974 MAY ALSO BE POWERED
DIRECTLY FROM EXTERNAL 3.3V SUPPLY
LTC3880: Dual Output PolyPhase®
Step-Down DC/DC Controller with
Digital Power System Management
Features:
• PMBus/I2C Compliant Serial Interface
Dual Output Buck Converter with Digital Power System Management
–– Telemetry Read Back Includes VIN, IIN, VOUT,
IOUT, Temperature and Faults
VIN
VIN
–– Programmable Voltage, Current Limit, Digital
Soft-Start/Stop, Sequencing, Margining, OV/UV
and Frequency Synchronization (250kHz to 1MHz)
•
±0.5% Output Voltage Accuracy Over Temperature
•
Integrated 16-Bit ADC
•
Internal EEPROM and Fault Logging
•
Wide VIN Range: 4.5V to 24V
•
VOUT Range: 0.5V to 5.5V
1µF
10µF
0.1µF
VOUT0
3.3V
15A
1.0µH
BOOST0
SW0
2.15k
0.2µF
BG0
Analog Current Mode Control Loop
•
Accurate PolyPhase Current Sharing for
Up to Six Phases
ISENSEO+
ISENSEO–
VSENSEO+
VSENSEO–
TSNS0
+
530µF
*SOME DETAILS OMITTED
FOR CLARITY
PMBus
INTERFACE
TO/FROM
OTHER LTC DEVICES
WRITE PROTECT
Function
Number
of
Outputs
Supply
Voltage
(V)
LTM4676
Dual 13A µModule
2
4.5 to 26.5
•
LTM2987
Sixteen Supply Manager
16
3.13 to 15
•
LTC2977
Octal Supply Manager
8
3.13 to 15
LTC2974
Quad Supply Manager
4
3.13 to 15
LTC2970
Dual Supply Manager
2
4.5 to 15
LTC3880
Dual Step-Down Controller
2
4.5 to 24
•
LTC3883
Single Step-Down Controller
1
4.5 to 24
•
LTC3882
Dual Step-Down Controller
2
3 to 38
LTC3870
Dual Phase Extender Controller
2
4.5 to 60
EEPROM
PMBus
Compliant
0.1µF
BOOST1
SW1
0.56µH
BG1
1.74k
0.2µF
PGND
10nF
2200pF
6.04k
•
Part
Number
INTVCC
TG0
TG1
LTC3880*
ISENSE1+
ISENSE1–
VSENSE1
TSNS1
2200pF
ITHO
ITH1
Margins
+
10nF
530µF
4.99k
SDA
GPIO0
SCL
GPIO1
ALERT
VDD33
RUN0
VDD25
RUN1
SHARE_CLK
SGND
WP
Sequences
VOUT1
1.8V
20A
FAULT MANAGEMENT
1µF
1µF
Maximum
Junction
Temperature (ºC)
Packages
Monitors
Supervises
•
V, I, T
V, I, T
•
•
125
16x16 BGA-144
•
V, I
V
•
•
105
15x15 BGA-144
•
•
V, I
V
•
•
105
9x9 QFN-64
•
•
V, I, T
V, I, T
•
•
85
9x9 QFN-64
V, I
V, I
•
85
4x5 QFN-24
•
V, I, T
V, I, T
•
•
125
6x6 QFN-40
•
V, I, T
V, I, T
•
•
125
5x5 QFN-32
•
•
V, I, T
V, I, T
•
•
125
6x6 QFN-40
•
•
V, I, T
V, I, T
•
•
125
4x5 QFN-28
21
22
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Low Noise LDOs: Positive Regulators
LT3013/H: 250/200mA, 4V to 80V Low Dropout
Micropower LDO with Power Good
Features:
• Wide Input Voltage Range: 4V to 80V
•
Low Quiescent Current: 65µA
•
Low Dropout Voltage: 400mV
Automotive Input to 5V with Shutdown
IN
VIN
5.4V TO
80V
•
H-Grade: 140°C Operation, 200mA IOUT
•
Adjustable Output from 1.24V to 60V
1µF
OUT
LT3013
1.6M
SHDN
PWRGD
GND
VSHDN
<0.3V
>2.0V
OUTPUT
OFF
ON
750k
ADJ
VOUT
5V
250mA
3.3µF
249k
CT
1000pF
LT3013
At 50% Size Demo Board
Low Noise LDOs: Positive Regulators
Part
Number
Device
Architecture
VIN
Range(V)
VOUT
(MIN)
(V)
IOUT
(A)
Dropout
Voltage
(V)
Noise
(μVRMS)
IQ(µA)
ISD(µA)
Output
Voltage (V)
Max Junc
Temp (˚C)
Package
LT3014/HV Single
3.0 to 80
1.22
20
0.35
115
7
<1
Adj (1.22 to 60)
125
3x3 DFN-8, ThinSOT
LT3008
Single
2.0 to 45
0.6
20
0.28
92
3
<1
Adj, 1.2, 1.5, 1.8, 2.5, 3.3, 5
125
2x2 DFN-6, ThinSOT
LT3010/-5 Single
3.0 to 80
1.275
50
0.30
100
30
<1
Adj, 5
140
ThinSOT
LT3011
Single
3.0 to 80
1.24
50
0.30
100
45
<1
Adj
140
3x3 DFN-10, MSOP-12E
LT1761
Single
1.8 to 20
1.22
100
0.30
20
20
1
Adj, 1.5, 1.8, 2, 2.5, 2.8, 3,
3.3, 5
125
ThinSOT
LT3050
Single
2.0 to 45
0.6
100
0.30
30
50
<1
Adj, 3.3, 5
125
2x3 DFN-12, MSOP-12E
LT3060
Single
1.6 to 45
0.6
100
0.30
30
40
<1
Adj, 1.2, 1.5, 1.8, 2.5, 3.3, 5
150
2x2 DFN-8, ThinSOT
LT3061 ^
Single
1.6 to 45
0.6
100
0.25
30
45
<1
Adj (0.6 to 19)
150
2x3 DFN-8, MSOP-8E
LT3023
Dual
1.8 to 20
1.22
100/100
0.30
20
40
1
Adj (1.22 to 20)
125
3x3 DFN-10, MSOP-10E
LT3027
Dual
1.8 to 20
1.22
100/100
0.30
20
40
1
Adj (1.22 to 20)
125
3x3 DFN-10, MSOP-10E
LT1762
Single
1.8 to 20
1.22
150
0.30
20
25
1
Adj, 2.5, 3, 3.3, 5
125
MSOP-8
LTC1844
Single
1.6 to 6.5
1.25
150
0.11
30
40
1
Adj, 1.5, 1.8, 2.5, 2.8, 3.3
125
ThinSOT
LT3062
Single
1.6 to 45
0.6
200
0.30
30
45
<1
Adj (0.6 to 40)
150
2x3 DFN-8, MSOP-8E
LT3063 ^
Single
1.6 to 45
0.6
200
0.30
30
45
<1
Adj (0.6 to 19)
150
2x3 DFN-8, MSOP-8E
LT3042 ^^ Single
1.8 to 20
0
200
0.35
0.85
1.9mA
<1
Adj (0 to 15)
150
3x3 DFN-10, MSOP-10E
LT3082
Single
1.2 to 40
0
200
1.3
33
500
n/a
Adj (0 to 38.5)
125
3x3 DFN-8, ThinSOT, SOT-223
LT3012
Single
4 to 80
1.24
250
0.40
100
40
1
Adj (1.24 to 60)
125
3x4 DFN-12, TSSOP-16E
^ active output discharge ^^ PSRR >[email protected], [email protected], >70dB up to 5MHz
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Low Noise LDOs: Positive Regulators (continued)
(MIN)
(V)
IOUT
(A)
Dropout
Voltage
(V)
Noise
(μVRMS)
IQ(µA)
ISD(µA)
Output
Voltage (V)
Max Junc
Temp (˚C)
Package
4 to 80
1.24
250
0.40
100
65
1
Adj (1.24 to 60)
125
3x4 DFN-12, TSSOP-16E
4 to 80
1.24
200
0.40
100
40
1
Adj (1.24 to 60)
140
TSSOP-16E
Single
4 to 80
1.24
200
0.40
100
65
1
Adj (1.24 to 60)
140
TSSOP-16E
Single
1.8 to 20
1.22
300mA
0.27
20
30
1
Adj, 1.5, 1.8, 2.5, 3, 3.3, 5
125
MSOP-8
LT1763
Single
1.8 to 20
1.22
500mA
0.30
20
30
1
Adj, 1.5, 1.8, 2.5, 3, 3.3, 5
125
SO-8
LT3085
Single
1.2 to 36
0
500mA
0.275
33
1mA
n/a
Adj (0 to 35.7)
125
2x3 DFN-6, MSOP-8E
LT3055
Single
2.0 to 45
0.6
500mA
0.35
25
65
1
Adj (0.6 to 40)
150
3x4 DFN-16, MSOP-16E
LT3065
Single
2.0 to 45
0.6
500mA
0.3
25
55
1
Adj (0.6 to 40)
150
3x3 DFN-10, MSOP-12E
LT3024
Dual
1.8 to 20
1.22
100/500mA
0.30
20
60
1
Adj (1.22 to 20)
125
3x4 DFN-12, TSSOP-16E
LT3028
Dual
1.8 to 20
1.22
100/500mA
0.30
20
60
1
Adj (1.22 to 20)
125
3x5 DFN-16, TSSOP-16E
LT3029
Dual
1.8 to 20
1.215
500/500mA
0.30
20
55/55
<1
Adj (1.215 to 19.5)
150
3x4 DFN-16, MSOP-16E
LT3030
Dual
1.8 to 20
1.215
750/250mA
0.30
20
110/70
<1
Adj (1.215 to 19.5)
150
4x5 QFN-28, SSOP-20E
LT3088
Single
1.2 to 40
0
800mA
1.20
30
350
n/a
Adj (0 to 38.8)
150
3x3 DFN-8, SOT-223, DD-Pak-3
Part
Number
Device
Architecture
VIN
Range(V)
LT3013
Single
LT3012H
Single
LT3013H
LT1962
VOUT
LT1965
Single
1.8 to 20
1.20
1.1
0.29
40
500
1
Adj (1.20 to 20)
125
3x3 DFN-8, MSOP-8E, TO-220-5,
DD-Pak-5
LT3080
Single
1.2 to 36
(40VMAX)
0
1.1
0.3 **
40
1mA
1
Adj (0 to 36) ***
125
3x3 DFN-8, MSOP-8E, TO-220-5,
SOT-223
LT1963/A
Single
2.1 to 20
1.21
1.5
0.34
40
1mA
1
Adj, 1.5, 1.8, 2.5, 3.3
125
DD-Pak-5, TO-220-5, SOT-223, SO-8
LT3081
Single
1.2 to 40
0
1.5
1.2
30
1.1mA
n/a
Adj (0 to 38.8)
150
4x4 DFN-12, TSSOP-16, TO-220-7,
DD-Pak-7
LT3086
Single
1.55 to 36
0.4
2.1
1.2
35
330
<1
Adj (0.4 to 32)
125
4x5 DFN-16, TSSOP-16, TO-220-7,
DD-Pak-7
LT3083
Single
1.2 to 8/18 *
0
3
1.45
40
1mA
n/a
Adj (0 to 7.5 or 0 to 17.5 *)
125
4x4 DFN-12, TSSOP-16E, TO-220,
DD-Pak-5
LT1764/A
Single
2.7 to 20
1.21
3
0.34
40
1mA
1
Adj, 1.8, 2.5, 3.3
125
DD-Pak-5, TO-220-5
LT3070#
Single
0.95 to 3
0.8
5
0.085
25
1.1mA
n/a
Adj (0.8 to 1.8)
125
4x5 QFN-28
LT3071## Single
0.95 to 3
0.8
5
0.085
25
1.1mA
n/a
Adj (0.8 to 1.8)
125
4x5 QFN-28
* DD-Pak and TO-220 packages ** in two-supply operation *** single resistor VOUT set # digital margining ## analog margining
Low Noise LDOs: Negative Regulators
Part
Number
Device
Architecture
VIN
Range(V)
VOUT(MIN)
(V)
IOUT
(A)
Dropout
Voltage (V)
Noise
(μVRMS)
IQ(µA)
ISD(µA)
Output
Voltage (V)
Max Junc
Temp (˚C)
Package
LT1964
Single
-1.9 to -20
-1.21
200mA
0.34
30
30
3
Adj, -5
125
ThinSOT
LT3032
Dual
±1.9 to ±20
±1.22
150mA/150mA 0.30/0.34
20/30
55
<1
Adj, ±5
125
3x4 DFN-14
LT1175
Single
-4.3 to -20
-3.8
500mA
0.50
n/a
45
10
Adj, -5
125
DD-Pak-5, SOT-223, SO-8, PDIP8,
TO-220-5
LT3090
Single
-1.5 to -36
0
600mA
0.3
18
1mA
<1
Adj
150
3x3 DFN-12, MSOP-12E
LT3015
Single
-1.9 to -30
-1.22
1.5
0.34
60
1.2mA
<1
Adj
125
3x3 DFN-8, MSOP-12E, DD-Pak-5,
TO-220-5
LT1185
Single
-4.3 to -35
-2.40
3
0.80
n/a
2.5mA
1
Adj
125
DD-Pak-5, TO-220-5
23
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
High Voltage Battery Stack Monitors for Battery Management Systems
Applications:
• Passenger Automobiles (EV, HEV)
•
Commercial Vehicles (Buses, Trains)
•
Industrial Equipment (Forklifts, Trucks)
•
Marine (Boats, Submarines)
•
Mil/Aero (Planes, Satellites,
Unmanned Vehicles)
•
Part
Number
Primary
Function
Measurement
Error Max
Multichip Interface
Package
Comments
LTC6804-1
12 Cell
Measurements
0.10%
isoSPI, Daisy-Chain
SSOP-48
3rd Generation: High Noise Immunity High
Accuracy, 240µsec Conversion
LTC6804-2
12 Cell
Measurements
0.10%
isoSPI, Addressable
SSOP-48
3rd Generation: High Noise Immunity High
Accuracy, 240µsec Conversion
LTC6803-1/3
12 Cell
Measurements
0.25%
SPI, Daisy-Chain
SSOP-44
2nd Generation: High Noise Immunity, 0µA
shutdown
LTC6803-2/4
12 Cell
Measurements
0.25%
SPI, Addressable
SSOP-44
2nd Generation: High Noise Immunity, 0µA
shutdown
LTC6802-1
12 Cell
Measurements
0.25%
SPI, Daisy-Chain
SSOP-44
1st Generation: Superseded by the LTC6804
and LTC6803 for new designs
LTC6802-2
12 Cell
Measurements
0.25%
SPI, Addressable
SSOP-44
1st Generation: Superseded by the LTC6804
and LTC6803 for new designs
LTC6801
12 Cell Fault
Monitor
0.50%
Differential Clock
Signals, Daisy-Chain
SSOP-36
Standalone Undervoltage/Overvoltage
Monitor, Provides Redundancy
Electric Bicycles (Motorcycles, Scooters)
LTC6804: Next Generation
Battery Stack Monitor
•
Stackable Architecture Supports 100s of Cells
•
Built-in isoSPI™ Interface
•
Delta-Sigma ADC With Frequency Programmable 3rd
Order Noise Filter
•
1.2mV Maximum Total Measurement Error
•
240µs to Measure All Cells in a System
•
Synchronized Voltage and Current Measurement
•
Engineered for ISO26262 Compliant Systems
•
Passive Cell Balancing with Programmable Timer
•
General Purpose I/O for Digital or Analog Inputs, also
Configurable for I2C Interface
•
4μA Sleep Mode Supply Current
•
48-Lead SSOP Package
Stackable BMS Architecture
Total Measurement Error vs Temperature
2.0
CELL VOLTAGE = 3.3V
5 TYPICAL UNITS
1.5
+
12s1p
Li-Ion
–
MEASUREMENT ERROR (mV)
Features:
• Measures Up to 12 Battery Cells in Series
LTC6804
LTC6804
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–50
–25
05
0
75
25
TEMPERATURE (°C)
100
125
LTC6804
LTC6820: Noise Immune, Isolated,
Bidirectional SPI Communications (isoSPI)
Features:
• Supports LTC6804 High Voltage Battery Monitor
•
1Mbps Isolated SPI Using Standard Transformers
•
Bidirectional Interface Over a Single Twisted Pair
•
Supports Cable Lengths Up to 100 Meters
•
Configurable for High Noise Immunity or Low Power
•
Ultralow, 2.5μA Idle Current
•
Interfaces with 1.8V to 5V Logic
•
16-Lead QFN and MSOP Packages
Isolated 2-Wire Communication
MASTER
µC
SDO
SDI
SCK
CS
REMOTE
SLAVE IC
1.2
LTC6820
MSTR
MOSI
MISO
SCK
CS
CAT-5 ASSUMED
IP
1.0
120Ω
IM
100 METERS
TWISTED PAIR
LTC6820
MSTR
SDI
SDO
SCK
CS
Data Rate vs Cable Length
MOSI
CS
0.8
0.6
0.4
0.2
IP
120Ω
MISO
SCK
DATA RATE (Mbps)
24
IM
0
1
10
CABLE LENGTH (METERS)
100
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Active Battery Balancing ICs
Electric vehicles (EV) and plug-in hybrid vehicles (PHEV) are demanding longer usable run time from their battery stacks. These stacks of
batteries are typically made of battery modules, each with as many as 12 Li-Ion cells stacked in series, offering a ~40V battery module. As the
battery run time defines the very feasibility of these vehicles, maximizing battery capacity is of primary importance. Batteries can always be made
larger to improve driving range, but this increases the weight, size and cost of the vehicle. So the goal for automotive EV IC designers is to find
ways to make the existing battery run longer. One effective method is to employ active balancing.
LTC3300-1/-2 High Efficiency/Addressable
Bidirectional Multicell Battery Balancer
Key Technical Features
• Bidirectional Synchronous Flyback Balancing of Up to
6 Li-Ion or LiFePO4 Cells in Series
•
Up to 10A Balancing Current (Set by External
Components)
•
Bidirectional Architecture Minimizes Balancing Time
and Power Dissipation
•
Up to 92% Charge Transfer Efficiency
•
Stackable Architecture Enables >1000V Systems
•
Uses Simple 2-Winding Transformers
•
1MHz Daisy-Chainable Serial Interface with 4-Bit CRC
Packet Error Checking
•
Numerous Fault Protection Features
•
48-Lead Exposed Pad QFN and LQFP Packages
LT8584 2.5A Monolithic Active Cell Balancer with
Telemetry Interface
Key Technical Features
• 2.5A Typical Average Cell Discharge Current
•
Integrated 6A/50V Power Switch
•
Integrates Seamlessly with LTC680x Family (No Additional
Software Required for “Simple Mode” Operation)
•
Selectable Current and Temperature Monitors
•
Ultralow Quiescent Current in Shutdown
•
Engineered for ISO 26262 Compliant Systems
•
Isolated Balancing:
–– Can Return Charge to Top of Stack
–– Can Return Charge to Any Combination of Cells in Stack
–– Can Return Charge to 12V Battery for Alternator
Replacement
•
Can Be Paralleled for Greater Discharge Capability
LTC3305 Lead Acid Battery 4-Cell Balancer
Key Technical Features
• Single IC Balances up to Four 12V Lead Acid Batteries in
Series
•
All N-FET Design
•
Stackable to Balance Larger Series Battery Packs
•
Standalone Operation Requires No External µP or
Control Circuitry
•
Balancing Current Limited by External PTC Thermistor
•
38-Lead TSSOP and 7mm x 7mm 48-Lead LQFP Packages
25
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Current Sense Amplifiers
Applications:
• H-Bridge Motor Control
•
Solenoid Current Sense
•
PWM Control Loops
•
Hydraulic Controls
•
Lamp Monitoring
•
Glow Plug Control
•
Load Monitoring
Full Bridge Armature Current Monitor
V+
LT1999
VS
5V
V+
1
2µA
SHDN
•
HEV/EV Battery Management Systems
•
12V / 24V Battery Monitoring
•
High Voltage Data Acquisition
•
Remote Sensing
•
Overcurrent and Fault Detection
•
Cable Drop Compensation
•
Fuse/MOSFET Monitoring
V+
V–IN
4
0.8k
4k
3
5V
–
4k
V+IN 2
RS
8
RG
+
–
7
+
VSHDN
VOUT
V+
0.8k
V+
160k
6 VREF
160k
0.1µF
5
0.1µF
Part Number
Current
Direction
Common Mode
Voltage (V)
Response Time
(μs)
VOS Max
(μV)
PSRR Min
(dB)
Max Temperature
Range
Comments
LT1787
Bidirectional
2.5 to 65
10
150
100
–40°C to 125°C
Buffered Output; Simple Input Filtering
LT1999
Bidirectional
–5 to 80
2.5
750
80
–55°C to 150°C
High Speed AC Monitor
LT6100
Unidirectional
4.1 to 48
40
300
95
–40°C to 125°C
Buffered Output with 5 Gain Settings
LTC6101
Unidirectional
4.0 to 105
1
300
115
–40°C to 125°C
Fast, High Voltage Monitor
LTC6102
Unidirectional
4.0 to 105
1
10
115
–40°C to 125°C
Zero-Drift, Highest Precision
LTC6103
Unidirectional
4.0 to 70
1
450
106
–40°C to 125°C
Dual Precision Amplifiers
LTC6104
Bidirectional
4.0 to 70
1
450
105
–40°C to 125°C
Each Direction Gain Configurable
LT6105
Unidirectional
–0.3 to 44
3.5
300
94
–40°C to 125°C
Monitors Voltages Down to GND
LT6106
Unidirectional
2.7 to 44
3.5
250
106
–40°C to 125°C
Lowest Cost, Simple
LT6107
Unidirectional
2.7 to 44
3.5
350
106
–55°C to 150°C
Fully Tested at –55°C, 25°C, 150°C
LT6108
Unidirectional
2.7 to 60
3
125
120
–40°C to 125°C
Includes Comparator+Ref
LT6109
Unidirectional
2.7 to 60
3
125
120
–40°C to 125°C
Includes 2 Comparators+Ref
LT6110
Unidirectional
2.0 to 50
2
250
88
–40°C to 125°C
Line Drop Compensator
LT6118
Unidirectional
2.7 to 60
3
200
120
–40°C to 125°C
Includes Comparator with Power on Reset +Ref
LT6119
Unidirectional
2.7 to 60
3
200
120
–40°C to 125°C
Includes Comparator with Power on Reset +Ref
LT1999: High Voltage, Bidirectional
Current Sense Amplifier
Features:
• Buffered Output with 3 Gain Options: 10, 20, 50
Input Common Mode Voltage Range: –5V to 80V
•
AC CMRR > 80dB at 100kHz
•
Supply Range: 2.7V to 36V, 44V Absolute Maximum
•
–3dB Bandwidth: 2MHz
•
Low Offset Voltage: 1.5mV Maximum
•
Smooth, Continuous Operation Over Entire Common
Mode Range
•
4kV HBM Tolerant and 1kV CDM Tolerant
•
Specified for –55°C to 150°C
•
8-Lead MSOP and 8-Lead SO (Narrow)
High AC Common Mode Rejection
VOUT
2.5V
V+IN (20V/DIV)
•
VOUT (2V/DIV)
26
V+IN
TIME (10µs/DIV)
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Power Supply Supervisors/Monitors
Features:
• High Operating Voltage, as High as 100V
•
High Threshold Accuracy Up to 1%
Over Temperature Minimizes Supply
Overdesign
•
Guaranteed Valid Reset Signal as Low as
VCC = 0.5V
•
•
12V Automotive Battery UV/OV Indicator
15V
VINA
REF
162k
INHA
Adjustable and Pin-Selectable Thresholds/
Tolerances Minimizes Bill of Materials
1000pF
10V
226k
Applications:
• Battery Management
•
Engine Control Unit
•
Infotainment
•
Body Electronics
INLA
OUTA
PSA
INHB
OUTB
PSB
182k
8.6k
1M
1M
UVA
UVB
5V
SYS
INLB
GND
1.4M
Camera Systems
5V
LTC2966
12.4k
Low Operating and Shutdown Currents
Conserve Power
•
VINB
GS1A
GS2A
GS1B
GS2B
RTN
–15V
Part
Number
# of
Supplies
Accuracy
%
Vsupply Max
(V)
Supply
Current
(µA)
Maximum
Ambient
Temperature
Package
LTC2910
8
1.5
6.6
70
LTC2930
6
1.5
7.0
52
•
125°C
SSOP-16, 5x3 DFN-16
125°C
LTC2931
6
1.5
7.0
52
•
3x3 DFN-12
125°C
TSSOP-20
LTC2932
6
1.5
7.0
52
•
•
LTC2933
6
1
13.9
700
•
•
•
•
125°C
TSSOP-20
•
85°C
SSOP-16, 5x4 DFN-16
LTC2914
4
1.5
6.6
70
•
•
LTC2900
4
1.5
7.0
43
•
125°C
SSOP-16, 5x3 DFN-16
85°C
LTC2901
4
1.5
7.0
43
•
MSOP-10, 3x3 DFN-10
85°C
SSOP-16
LTC2903
4
1.5
6.5
20
•
LTC1726
3
1.5
7.0
20
85°C
SOT23-6
85°C
SO-8, MSOP-8
LTC1727
3
1.5
7.0
15
LTC1728
3
1.5
7.0
15
85°C
SO-8, MSOP-8
125°C
LTC2913
2
1.5
6.6
44
SOT23-5
125°C
MSOP-10, 3x3 DFN-10
LTC2904
2
1.5
7.0
LTC2905
2
1.5
7.0
65
85°C
SOT23-8, 3x2 DFN-8
65
85°C
SOT23-8, 3x2 DFN-8
LTC2960
2
1.5
36
0.85
•
LTC2966
2
1
100
6
•
•
125°C
SOT23-8, 2x2 DFN-8
125°C
LTC2965
1
1
100
6
•
•
SO-20, 3x3 QFN-16
125°C
MSOP-16, 3x3 DFN-8
LTC2915
1
1.5
6.2
30
LTC2916
1
1.5
6.2
30
125°C
SOT23-8, 3x2 DFN-8
125°C
SOT23-8, 3x2 DFN-8
LTC2917
1
1.5
6.2
30
•
LTC2918
1
1.5
6.2
30
•
125°C
MSOP-10, 3x2 DFN-10
125°C
MSOP-10, 3x2 DFN-10
LTC2912
1
1.5
6.6
40
125°C
SOT23-8, 3x2 DFN-8
Overvoltage
Monitoring
•
Negative
Monitoring
Watchdog
Pushbutton
Reset
Power
Good
Output
•
•
•
•
•
•
•
•
•
•
•
•
•
RESET
Disable for
Margining
•
27
28
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Power Monitors
Features:
• Monitor Instantaneous or Average Power, as well as Voltage,
Current and Temperature
•
•
Load Monitor Alarms Above 60W
ILOAD
Up to 100V Operation
20mΩ
2W
I2C or Current-Proportortional-to-Power Interface
5V
Applications:
• Battery Management
•
0.02
LED ON WHEN
PLOAD > 60W
VOUT
SENSE+ SENSE–
VDD
ADIN
INTVCC
SCL
ADR1
SDAI
LTC2946
0.1µF
SDAO
ACCUMULATE
ADR0
GND
GPIO3
GPIO2
CLKIN
GPIO1
CLKOUT
VADIN 2k
2k
ALERT
3.3V
V+
LT2940
10.0k
V–
IMON
GND
mV
VIMON = ILOAD • 100
A
4.99k
24.9k
SCL
SDA
µP
+
VLOAD
–
110k
CMP+
PMON
VDD
2k
I–
CMPOUT
VPMON = PLOAD • 20.75 mV
W
3.3V
LOAD
LATCH
CMPOUT
High Side Power, Energy and Charge Monitor
I+
VCC
1k
Infotainment/GPS
VIN
4V TO
100V
0A TO 10A
6V TO 80V
PLOAD = VLOAD • ILOAD
INT
2k
GND
GP OUTPUT
33pF
33pF
Part
Number
Number
of
Channels
Voltage
Supply
Range (V)
Resolution
(Bits)
Interface
LTC2946
1
2.7 to 100
12
I2C
•
•
•
LTC2945
1
2.9 to 80
12
I2C
•
•
LTC4151
1
7.0 to 80
12
I2C
•
•
•
•
•
LTC2990
4
2.9 to 3.6
14
I2C
LTC2991
8
2.9 to 5.5
14
I2C
LT2940
1
6.0 to 80
Analog
Current
Output
Measures
Power
Measures
Voltage
Maximum
Ambient
Temperature
Package
125°C
MSOP-16, 4x3 DFN-16
•
85°C
MSOP-12, 3x3 QFN-12
•
125°C
MSOP-10, 3x3 DFN-10, SO-16
•
85°C
MSOP-10
•
85°C
MSOP-16
85°C
MSOP-12, 3x3 DFN-12
Measures
Current
•
Measures
Energy
Measures
Charge
•
Measures
Temperature
•
•
Temperature Sensors
Features:
• Measure Internal or External Temperature,
as well as Voltage and Current
•
I2C, SPI or Voltage-Proportional-toAbsolute-Temperature (VPTAT) Interface
Voltage, Current, Temperature Monitor
2.5V
0.1µF
VCC
SDA
SCL
ADR0
ADR1
LED Lighting
2.5V TO 5.5V
ILOAD
5V
Applications:
• Infotainment
•
Single Remote Temperature Sensor
RSENSE
V1
V2
MMBT 3904
V3
LTC2990
D+
TREMOTE
VREF
1.8V
LTC2997
470pF
V4
VCC
D–
GND
GND
VPTAT
4mV/K
TINTERNAL
MEASURES: TWO SUPPLY VOLTAGES, SUPPLY CURRENT,
INTERNAL AND REMOTE TEMPERATURES
Part Number
Voltage
Supply
Range (V)
Interface
Internal
Temp
Accuracy
External
Temp
Accuracy
LTC2997
2.50 to 5.5
VPTAT
±0.5°C
±0.25°C
LTC2996
LTC2995
2.25 to 5.5
VPTAT
±0.5°C
±0.25°C
2.25 to 5.5
VPTAT
±0.5°C
±0.25°C
•
LTC2990
2.90 to 5.5
I2C
±0.5°C
±0.5°C
•
•
LTC2991
2.90 to 5.5
I2C
±1°C
±0.7°C
•
•
LTC2983
2.85 to 5.25
SPI
—
±0.1°C
Measures
Voltage
Measures
Current
PWM Output
Maximum
Ambient
Temperature
Package
•
125°C
2x3 DFN-6
•
•
125°C
3x3 DFN-10
•
•
125°C
3x3 QFN-20
85°C
MSOP-10
85°C
MSOP-16
125°C
7x7 LQFP-48
Alert Outputs
Reference
Output
•
•
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Coulomb Counters
Features:
• High Accuracy Coulomb Counting (Battery Gas Gauging), and Voltage,
Temperature and Current Measurements
•
Multicell Application Support up to 60V
•
External Sense Resistor or 50mΩ Internal Sense Resistor Options
•
Low Quiescent Current Down to <100µA
•
Small Packages
60V Coulomb Counter with Integrated Sense Resistor
CHARGER
LOAD
1µF
BYP
1µF
LTC2944-1
SENSE+
ALCC
Applications:
• Battery Management
I2C/SMBUS
TO HOST
SDA
SENSE–
SCL
+
2.7 to 5.5
LTC2941-1
2.7 to 5.5
I2C
LTC2942
2.7 to 5.5
I2C
LTC2942-1
2.7 to 5.5
I2C
LTC2943
3.6 to 20
I2C
LTC2943-1
3.6 to 20
I2C
LTC2944
3.6 to 60
I2C
LTC2944-1
3.6 to 60
I2C
LTC4150
2.7 to 8.5
Interrupt
•
•
•
•
Measures
Current
LTC2941
I2C
Measures
Temperature
Interface
Measures
Voltage
Operating
Range (V)
Measures
Charge
Part
Number
Integrated
Sense
Resistor
GND
Maximum
Ambient
Temperature
Package
•
85°C
2x3 DFN-6
•
85°C
2x3 DFN-6
85°C
2x3 DFN-6
•
•
•
•
•
•
85°C
2x3 DFN-6
•
•
•
•
85°C
3x3 DFN-8
•
•
•
•
85°C
3x3 DFN-8
•
•
•
•
85°C
3x3 DFN-8
•
•
•
•
85°C
3x3 DFN-8
85°C
MSOP-10
•
Pushbutton Controllers
DC/DC On/Off Control via Pushbutton
or Presence/Absence of a Supply
Features:
• Provide Switch Debounce Protection, Power
Supply Control & Optional Processor Interfacing
•
High Operating Voltage Up to 36V
•
Adjustable On/Off Timing
•
No Coding Required
•
High ESD Up to ±25kV HBM
V TRIP = 5.4V
LT3008-3.3
3.3V
VIN
VOUT
8.4V
SHDN
V IN
2.32M
0.1µF
SEL
INT
KILL
TMR GND
Supply
Current
(µA)
Turn ON
Debounce
Time
(ms)
µP
PGD
PB
402k
1M
LTC2955
ON
Applications:
• Infotainment/GPS
1M
EN
POWER-FAIL
System
OK
Response
Time
(ms)
Interrupt
Debounce
Time
(ms)
Turn OFF
Debounce
Time
(ms)
Kill Turn
OFF Delay
(ms)
HBM
ESD
(kV)
Maximum
Ambient
Temperature
Part
Number
Description
Supply
Voltage
(V)
LTC2950
Basic Pushbutton Controller
2.7 to 26
6.0
Adj
512
Adj
n/a
1024
±10
85°C
TSOT-8, 3x2 DFN-8
LTC2951
Basic Pushbutton Controller
2.7 to 26
6.0
128
512
Adj
n/a
Adj
±10
85°C
TSOT-8, 3x2 DFN-8
LTC2952
Pushbutton Controller with PowerPath Controller
2.7 to 28
25
Adj
400
26
n/a
Adj
±8
85°C
TSSOP-20, 4x4 QFN-20
LTC2953
Pushbutton Controller with Supply Monitor, UVLO
and Power Fail Comparators for Supervisory
Applications
2.7 to 27
12
32
512
32
Adj
n/a
±10
85°C
3x3 DFN-12
LTC2954
Pushbutton Controller with Interrupt Logic for Menu
Driven Applications
2.7 to 26
6.0
Adj
512
32
Adj
n/a
±10
85°C
TSOT-8, 3x2 DFN-8
LTC2955
Pushbutton Controller with Automatic Turn-On and
Interrupt Logic for Menu Driven Applications
1.5 to 36
1.2
32
512
32
Adj
n/a
±25
85°C
TSOT-8, 3x2 DFN-10
Package
29
30
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
TimerBlox® Products
Features:
• Dedicated Timing Devices
LED Dimming via Direct PWM Control
–– Includes Internal Silicon Oscillator
–– Easily Programmed with Resistors
R3
90.9Ω
VDIMMING
MOD
OUT
LTC6992-1
•
±20mA Output Current
•
60μA to 250μA Supply Current
•
2.25V to 5.5V Single Supply Operation
•
Small Size
•
Fast Start-Up
•
Immune to Shock & Vibration
•
Specified from –55°C to 125°C
V+
GND
HIGH INTENSITY LED
C1
0.1µF
R1
1M
SET
D1
5V
DIV
R2
280k
RSET
105k
Temperature to Frequency Converter
5V
OE
fOUT
OUT
LTC6990
V+
GND
5V
1M
60.4k
SET
DIV
21.5k
523k
Hardware Watchdog Timer
TRIGGER
RST
OUTPUT
OUT
LTC6995
GND
V+
R1
RSET
SET
FALLING EDGE TRIGGERED
POL = 0
V+
0.1µF
DIV
R2
TimerBlox Board
Actual Size Demo Board
Part Number
Function
Operating Range
Package
Details
LTC6990
Voltage-Controlled Oscillator (VCO)
488Hz to 1MHz
SOT-23, DFN
Simple and Flexible Control
LTC6991
Low Frequency Clock
29μHz to 488Hz
SOT-23, DFN
Period from 2msec Up to 9.5 Hrs
LTC6992-1
Pulse-Width Modulation (PWM)
3.8Hz to 1MHz
SOT-23, DFN
0% to 100% Pulse Width Control
LTC6992-2
Pulse-Width Modulation (PWM)
3.8Hz to 1MHz
SOT-23, DFN
5% to 95% Pulse Width Control
LTC6992-3
Pulse-Width Modulation (PWM)
3.8Hz to 1MHz
SOT-23, DFN
0% to 95% Pulse Width Control
LTC6992-4
Pulse-Width Modulation (PWM)
3.8Hz to 1MHz
SOT-23, DFN
5% to 100% Pulse Width Control
LTC6993-1
One-Shot Circuit
1µs to 34s
SOT-23, DFN
Rising Edge Trigger
LTC6993-2
One-Shot Circuit
1µs to 34s
SOT-23, DFN
Rising Edge Trigger, Retriggerable
LTC6993-3
One-Shot Circuit
1µs to 34s
SOT-23, DFN
Falling Edge Trigger
LTC6993-4
One-Shot Circuit
1µs to 34s
SOT-23, DFN
Falling Edge Trigger, Retriggerable
LTC6994-1
Delay Block
1µs to 34s
SOT-23, DFN
Rising or Falling Edge Trigger
LTC6994-2
Delay Block
1µs to 34s
SOT-23, DFN
Rising & Falling Edge Trigger
LTC6995
Long Duration Power-On Reset
1.024ms to 9.54 hours
SOT-23, DFN
High or Low Reset, Selectable Polarity
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Silicon Oscillators
Features:
• Simple Square Wave Oscillators
LTC6906 Micropower Clock Generator
–– No Crystal
NO DECOUPLING
CAPACITOR
NEEDED
–– 1kHz to 170MHz Output Frequencies
•
On-the-Fly Frequency Programmability
•
Accuracy from 0.1% to 1.5%
•
Low Power
•
Small Size
•
Fast Start-Up
•
Immune to Shock & Vibration
•
Specified from –55°C to 125°C
2.25V TO 3.6V
10
3
1
LTC6906
V+
OUT
GND
GRD
DIV
SET
10kHz TO 1MHz
RSET
100k TO 1M
Part
Number
Frequency
Output
Max Error
(%)
Supply
Current
Package
Features
LTC1799
1kHz to 33MHz
1.5
1mA @ 3MHz
SOT-23
Frequency Set via 1 Resistor
LTC6903
1kHz to 68MHz
1.1
1.7mA @ 3MHz
MSOP-8
Frequency Set via SPI Interface
LTC6904
1kHz to 68MHz
1.1
1.7mA @ 3MHz
MSOP-8
Frequency Set via I2C Interface
LTC6905
17MHz to 170MHz
1.4
7mA @ 170MHz
SOT-23
Frequency Set via 1 Resistor, 100µsec Startup
LTC6905-xx
20MHz to 133MHz
1.0
10mA @ 133MHz
SOT-23
Pin Selectable Frequency
LTC6906
10kHz to 1MHz
0.5
60µA @ 1MHz
SOT-23
Frequency Set via 1 Resistor, Very Low Power
LTC6907
40kHz to 4MHz
0.5
275µA @ 4MHz
SOT-23
Frequency Set via 1 Resistor, Very Low Power
LTC6908
50kHz to 10MHz
1.5
400µA @ 50kHz
SOT-23
2 Phase Output with Spread Spectrum Capability
LTC6909
50kHz to 10MHz
1.5
400µA @ 50kHz
SOT-23
8 Phase Output with Spread Spectrum Capability
LTC6930
32.768kHz to 8.192MHz
0.09
400µA @ 50kHz
MS8, DFN
High Accuracy, Pin Selectable Frequency
LTC6908: Dual Output Oscillator for
Switching Regulators
Features:
• Two Options: Outputs Complementary
(0°/180°) or Quadrature (0°/90°)
•
•
•
Ideal for Switching Regulator
Phase Synchronization
CBYP
50kHz to 10MHz Frequency Range
400µA Supply Current
•
260µsec Start-Up Time
•
Outputs Muted Until Stable
•
Operates from a Single 2.7V to
5.5V Supply
Available in Low Profile (1mm)
ThinSOT and DFN (2mm x 3mm)
Packages
V+
OUT1
GND
OUT2
SET
MOD
44.2k
Optional Spread Spectrum Modulation
for Improved EMC
2.2M
SW
LTC3418
PGOOD
PGND
RUN/SS
SGND
ITH
SYNC/MODE VFB
RT
41.2k
1000pF
4.99k
820pF
fOUT = 10MHz • 10k/RSET
CLOCK SIGNAL FOR REGULATOR #1 (0° PHASE)
CLOCK SIGNAL FOR REGULATOR #2 (180° PHASE)
9kHz
Res BW
0
2
4
CIN
100µF
0.2µH
SVIN TRACK PVIN
LTC6908-1
0.1µF
One External Resistor Sets
the Frequency
•
•
VIN
2.8V TO 5.5V
5dB/DIV
•
Dual Phase Clocking for 2 Switching Regulators
6
8
Frequency
(Fundamental and Third Harmonic Shown)
Spread Spectrum
Frequency Modulation
4.32k
2k
VOUT
2.5V
8A
COUT
2 × 100µF
(IN PARALLEL)
31
32
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Photodiode Amplifier
Precision Operational Amplifiers
2.5V
1M
Features:
• High Precision Over Temperature:
–– I-Grade: –40°C to 85°C
–
–– H-Grade: –40°C to 125°C
•
1/2
LTC6078
TEMD1000
IR PHOTODIODE
Over-The-Top® (OTT) Inputs Allow Operation
with Input Voltages above V+
3.8pF
VOUT
+
–2.5V
AT 870nm (IR), VOUT = 600mV/μW RECEIVED POWER
Single Part
Number
Dual Part
Number
LTC2054HV
LTC2055HV
LTC2050HV
LTC2051HV
Quad Part
Number
LTC2052HV
LTC2057
LTC1050
LTC1051
LTC6078
LTC6079
LT6020
LT1028
LT6015
LT6010
TCVOS Max
(μV/°C)
IB Max 25°C
(nA)
GBW Typ
25°C (MHz)
en Typ 25°C
(nV/√Hz)
IS Max 25°C
(mA)
VS Range
(V)
Rail-to-Rail
I/O
Temperature
Grade
3
0.03
0.15
0.5
0.15
2.7 to 12
Out
I, H
3
0.03
0.075
3
5
0.025
0.2
1.5
13
1.2
2.7 to 12
Out
I, H
1.35
4.75 to 60
Out
5
0.05
0.03
2.5
I, H
90
1.5
4.75 to 18
Out
25
0.7
0.001
I, H
0.75
18
0.072
2.7 to 6
Yes
I, H
30
0.5
40
0.8
3
0.4
46
0.1
3 to 30
Out
I, H
90
75
0.85
9.5
8 to 44
I
LT6016
LT6017
50
0.75 Typ
5
3.2
18
0.335
3 to 50
OTT
I, H
LT1881
LT1882
50
0.8
0.2
1
14
0.9
2.4 to 40
Out
I, H
LT1884
LT1885
50
0.8
0.4
2
9.5
0.9
2.4 to 40
Out
I
LT6011
LT6012
60
0.8
0.3
0.33
14
0.15
2.7 to 40
Out
I
LTC6081
LTC6082
70
0.8
0.001
3.6
13
0.425
2.7 to 5.5
Yes
I, H
LT1468
LT1469
75
2
40
90
5
5
9 to 36
LT1678
LT1679
100
3
20
20
3.9
3.4
3 to 36
Yes
I
LTC6244
LTC6240
VOS Max
25°C (μV)
I
100
2.5
0.075
50
8
7.4
2.8 to 7
Out
I, H
LTC6241
LTC6242
125
2.5
0.075
18
7
2.2
2.8 to 6
Out
I, H
LT1013
LT1014
150
2
20
0.8
22
0.5
4 to 44
SS
I
150
1.2
0.9
1.1
13
1.9
2.4 to 40
Out
I
LT1880
LTC6360
30000
1000
2.3
17.5
4.75 to 5.25
Out
I, H
LTC6255
LTC6256
LTC6257
250
350
3
60
6.5
20
0.073
1.8 to 5.25
Yes
I, H
LT1637
LT1638
LT1639
350
3
50
1
27
0.25
1.8 to 44
OTT
I, H
LT6220
LT6221
LT6222
350
5
150
60
10
1
2.2 to 12.6
Yes
I
LT6233
LT6234
LT6235
350
3
3000
60
1.9
1.25
3 to 12.6
Out
I
LT1800
LT1801
LT1802
350
5
250
80
8.5
2
2.3 to 12.6
Yes
I
LT1494
LT1495
LT1496
375
2
1
0.0027
185
0.0015
2.1 to 36
OTT
I, H
LT1722
LT1723
LT1724
400
7
300
200
3.8
4.5
4.6 to 12.6
LT6003
LT6004
LT6005
500
5
0.09
0.002
325
0.001
1.6 to 16
Yes
I, H
LT1636
LT1490A
LT1491A
500
4
8
0.18
50
0.055
2 to 44
OTT
I, H
LT6202
LT6203
LT6204
500
24
7000
100
1.9
3.5
2.5 to 12.6
Yes
I
LTC6246
LTC6247
LTC6248
500
350
180
4.2
1
2.5 to 5.25
Yes
I, H
LT1806
LT1807
Yes
I
LT1351
LT1352
LT1353
LT1970
I
550
5
4000
325
3.5
13
2.5 to 12.6
600
8
50
3
14
0.33
5.0 to 36
I
600
10
600
3.6
15
13
5 to 36
I
I
LT1357
LT1358
LT1359
600
8
500
25
8
2.5
5 to 36
LT6000
LT6001
LT6002
750
5
5
0.05
75
0.016
1.8 to 18
Yes
I
LTC6084
LTC6085
750
5
0.04
1.5
27
0.13
2.5 to 5.5
Yes
I, H
LTC6087
LTC6088
750
5
0.04
14
12
1.2
2.7 to 5.5
Yes
I, H
LT1782
800
5
15
0.2
50
0.055
2.2 to 18
OTT
I, H
LT1783
800
5
80
1.25
20
0.3
2.2 to 18
OTT
I, H
800
8
300
12
10
1.25
5 to 36
1000
5
0.05
12
14
3.9
9.5 to 140
LT1354
LT1355
LTC6090
LTC6091
LT1356
Notes: Some parameters vary between single/dual/quad versions • For a complete list of products and full specifications visit www.linear.com • OTT=Over-The-Top Inputs
I
Out
I, H
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Programmable Gain and Gain Selectable Amplifiers
Rail-to-Rail Gain = 1 Difference Amplifier
Features:
• High Precision Over Temperature:
–– I-Grade: –40°C to 85°C
50k
–– H-Grade: –40°C to 125°C
•
VOUT = VREF + ∆VIN
SWING 40mV TO
EITHER RAIL
ROUT <0.1Ω
5V
450k
150k
Integrated Resistors Simplify Design
VM(IN) –
450k
+
450k
∆VIN
VP(IN)
LT1991
450k
+
150k
INPUT RANGE
–0.5V TO 5.1V
RIN = 900kΩ
4pF
–
50k
4pF
VREF = 2.5V
Part
Number
Channels
Gain
Range
GBW
(MHz)
Railto-Rail
Vs
(V)
Is
(mA)
Temperature
Grade
Features
LTC6910
1
0 to 100
11
In/Out
2.7 to 10.5
3
I, H
Programmable 3-Bit Digital Gain Control
LTC6911
2
0 to 100
11
In/Out
2.7 to 10.5
3
I, H
Dual, Programmable Matched Channels
LTC6912
2
0 to 100
30
In/Out
2.7 to 10.5
2.75
I, H
Dual, Programmable Independent Channels
LTC6915
1
0 to 4096
0.2
In/Out
2.7 to 11
1.6
I, H
Zero-Drift PGA Instrumentation Amp
LT1991A
1
-13 to 14
0.56
Out
2.7 to 36
0.11
I, H
Precision Pin-Configurable Diff Amp
LT1990A
1
1 to 10
0.1
Out
2.7 to 36
0.12
I, H
±250V Input Pin-Configurable Diff Amp
LT1995
1
-7 to 8
30
5 to 36
8.5
I
High Speed Pin-Configurable Diff Amp
LT1996
1
-117 to 118 0.56
2.7 to 36
0.11
I
Precision Pin-Configurable Diff Amp
Out
Instrumentation Amplifiers
Features:
• High Precision Over Temperature:
–– I-Grade: –40°C to 85°C
Differential Bridge Amplifier
–– H-Grade: –40°C to 125°C
•
3V
High Impedance Differential Inputs
0.1µF
R < 10K
2
Part
Number
Vos Max
25°C
(µV)
Gain
Error
Max
(%)
CMRR
MIN
(dB)
IB
Max(nA)
Vs (V)
Is
(mA)
Temperature
Grade
Features
LTC2053
10
0.01
105
10
2.7 to 11
1.300
I, H
Zero-Drift Instrumentation Amp
LT1167
40
0.02
126
0.35
4.6 to 40
1.300
I
Precision Low Bias Current In Amp
3
LT1168
40
0.02
126
0.25
4.6 to 40
0.530
I
Precision Power Current In Amp
LT1789
100
0.2
100
40
2.2 to 36
0.095
I
Micropower Precision In Amp
LTC6915
10
0.075
105
10
2.7 to 11
1.600
I, H
Zero-Drift PGA Instrumentation Amp
8
–
7
LTC2053
+
1, 4
OUT
6
5 R2 10K
0.1µF
R1
10Ω
GAIN = 1+ R2
R1
High Temp (125°C) Comparators
Features:
• Fully Specified for –40°C to
125°C Operation
•
High Voltage, Over-The-Top Inputs
•
High Voltage, Open Collector Outputs
•
High Sink Current Output
•
Ideal for Level Translation
•
Combination Parts Include:
–– Internal Voltage Reference
–– Current Sense Amplifiers
Part
Number
Channels
Internal
Reference
VS (V)
Max Input
Voltage (V)
Max Output
Voltage (V)
IS Max
(μA)
Prop Delay
(µS)
Package
LT1716
1
No
2.7 to 44
44
VSUPPLY
50
9
SOT23
Comparator Combined with Voltage Reference
LT6700
2
400mV
1.4 to 18
18
18
15
18
SOT23, 2x3mm DFN
LT6700HV
2
400mV
1.4 to 18
18
36
15
18
SOT23, 2x3mm DFN
LT6703
1
400mV
1.4 to 18
18
18
11
18
SOT23, 2x2mm DFN
LT6703HV
1
400mV
1.4 to 18
18
36
11
18
SOT23, 2x2mm DFN
Comparator Combined with High Side Current Sense and Voltage Reference
LT6108-1
1
400mV
2.7 to 60
60
60
650
3
MSOP8, 2x3mm DFN
LT6108-2
1
400mV
2.7 to 60
60
60
650
3
MSOP8, 2x3mm DFN
LT6109
2
400mV
2.7 to 60
60
60
700
3
MSOP10
LT6118
1
400mV
2.7 to 60
60
60
650
3
MSOP8, 2x3mm DFN
LT6119
2
400mV
2.7 to 60
60
60
700
3
MSOP10
33
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
80MHz, 20dB Gain Block
High Speed Amplifiers
•
+
VIN
Features:
• High Gain Bandwidth Product and Slew Rate
1/2 LT1819
+
–
432Ω
Fully Specified Over Temperature:
432Ω
200Ω
–– I-Grade: –40°C to 85°C
VOUT
1/2 LT1819
–
200Ω
–– H-Grade: –40°C to 125°C
–3dB BANDWIDTH: 80MHz
Part
Number
Channels
GBW Typ
25°C (MHz)
Slew Rate Typ
25°C (V/μs)
VOS Max
25°C (μV)
IB Max
25°C (nA)
en Typ
25°C (nV/√Hz)
IS Max
25°C (mA)
VS
Range (V)
Rail-to-Rail
I/O
Temperature
Grade
LTC6360
1
1000
135
250
30000
2.3
17.5
4.75 to 5.25
Out
I, H
LTC6252/3/4
1/2/4
720
280
350
650
2.75
3.5
2.5 to 5.25
Yes
I, H
LT6553/4
3
650
650
10000
50000
11
4.5 to 13.2
I
LT6555/6
3
650
650
16000
45000
12
4.5 to 12.6
I
LT6557/8
3
500
2200
40000
70000
25
3 to 7.5
LTC6268/9
1/2
500
400
700
0.00002
4.3
18
3.1 to 5.25
LT1818/9
1/2
400
2500
1500
8000
6
10
3.5 to 12.6
I
LT1395/6/7
1/2/4
400
800
12000
4.5
6.5
3 to 12.6
H
LT1806/7
1/2
325
125
550
4000
3
13
2.5 to 12.6
LT1398/9
2/3
300
300
10000
50000
4.5
6.5
4 to 15.5
LT6552
1
300
2500
20000
50000
55
13.5
3 to 12.6
LT1815/6/7
1/2/4
220
1500
1500
8000
6
7.8
2.5 to 12.6
LT6230/1/2
1/2/4
215
70
500
10000
1
3.75
3 to 12.6
Out
I
LT6210/1
1/2
200
700
6000
39000
6.5
8.3
3 to 13.2
Out
I
LT6300/1
2/4
200
600
5000
4000
8
13.5
8 to 27
I
LT1722/3/4
1/2/4
200
70
400
300
3.8
4.5
4.6 to 12.6
I
LT1468-2/9-2
2/4
200
30
75
40
5
5
9 to 36
LTC6246/7/8
1/2/4
180
90
500
350
4.2
1
2.5 to 5.25
Yes
I, H
LT6200/1
1/2
165
50
1000
40000
0.95
23
2.5 to 12.6
Yes
I
LT1809/10
1/2
160
300
2500
8000
16
17
2.5 to 12.6
Yes
I
LT6550/1
3/4
110
340
70000
65000
12
11
3 to 12.6
Out
I
LT1812/3/4
1/2/4
100
750
1500
4000
8
3.6
2.5 to 12.6
LT6205/6/7
1/2/4
100
600
4500
30000
9
5.6
3 to 12.6
Out
I, H
LT6202/3/4
1/2/4
100
25
500
7000
1.9
3.5
2.5 to 12.6
Yes
I
I
Out
I, H
Yes
I
I
Out
I
I
I
I
Notes: Some parameters vary between single/dual/quad version • For a complete list of products and full specifications visit www.linear.com
5V Single-Supply 16-Bit ADC Driver
LTC6253: 720MHz, 3.5mA Power
Efficient Rail-to-Rail I/O Op Amp
5V
VIN
27.4mV TO
(3.5V + 27.4mV)
Features:
• Gain Bandwidth Product: 720MHz
+
½ LTC6253
–
143Ω
•
–3dB Frequency (AV = 1): 400MHz
•
Low Quiescent Current: 3.5mA Max
•
High Slew Rate: 280V/μs
•
Input Common Mode Range Includes Both Rails
•
Output Swings Rail-to-Rail
–20
•
Low Broadband Voltage Noise: 2.75nV/√Hz
–40
•
Power-Down Mode: 42μA
–60
•
Fast Output Recovery
•
Supply Voltage Range: 2.5V to 5.25V
•
Input Offset Voltage: 350μV Max
–120
•
Large Output Current: 90mA
–140
2.5k
0
–80
–160
–
½ LTC6253
+
fS = 1Msps
F1 = 20.111kHz
F1 AMPLITUDE
= –1.032dBFS
SNR = 93.28dB
THD = –100.50dB
SINAD = 92.53dB
SFDR = 104.7dB
F2 = –106.39dBc
F3 = –104.70dBc
F4 = –114.13dBc
F5 = –105.48dBc
–100
0
100
200
300
FREQUENCY (kHz)
249Ω
2.5k
5V
845Ω
AMPLITUDE (dBFS)
34
400
LTC2393-16
3900pF
249Ω
~2.08V
500
100Ω
LTC6253 Driving LTC2393-16
16-Bit ADC 5V Single-Supply
Performance
100Ω
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Differential Amplifiers/ADC Drivers
Applications:
• Pipeline ADC Drivers
Single-Ended to Differential Conversion
•
SAR ADC Drivers
•
Differential Driver/Receiver
•
Single-Ended to Differential Conversion
10k
5V
3
5V
10k
VIN
0V
5V
2.5V
0V
4
1
– +
7
VMID
LTC1992
2
VOCM
8
+ –
5
6
–5V
10k
0.01µF
INPUT SIGNAL
FROM A
±5V SYSTEM
5V
2.5V
0V
OUTPUT SIGNAL
FROM A
SINGLE-SUPPLY SYSTEM
10k
Gain
–72dB
HD2/HD3
(MHz)
–84dB
HD2/HD3
(MHz)
InputReferred
Noise
(nV/√Hz)
Settling
Time
(ns)
Vs
(V)
Is Max
(mA)
Temperature
Grade
Comments
DC to 700
0dB
140
30
1.5
0.8 (1%)
4.75 to 5.25
140
I
Can drive 50Ω
LTC6409
DC to 600
Resistor Set
120
100
1.1
1.9 (1%)
2.7 to 5.25
56
I, H
Input Common Mode range includes Ground
LTC6404-1
DC to 100
Resistor Set
25
11
1.5
17 (0.01%)
2.7 to 5.25
35.5
I, H
Rail-to-Rail Out, AV≥1
LTC6404-2
DC to 100
Resistor Set
40
30
1.5
15 (0.01%)
2.7 to 5.25
38
I, H
Rail-to-Rail Out, AV≥2
LTC6404-4
DC to 100
Resistor Set
50
20
1.5
14 (0.01%)
2.7 to 5.25
39
I, H
Rail-to-Rail Out, AV≥4
LTC6406
DC to 70
Resistor Set
40
30
1.6
11 (0.1%)
2.7 to 3.5
22
I
Rail-to-Rail In
LTC6405
DC to 70
Resistor Set
35
24
1.6
11 (0.1%)
4.5 to 5.5
23
I
Rail-to-Rail In
LTC6403
DC to 40
Resistor Set
10
7
2.8
30 (0.1%)
2.7 to 5.25
11.8
I
Rail-to-Rail Out
LTC1992
DC to 2
1, 2, 5, 10 V/V, Resistor Set
0.05
0.01
35
2000 (1%)
2.7 to 12
1.2
I, H
Rail-to-Rail Out
LT6350
DC to 1
6dB, Resistor configurable
1
0.4
1.9
240 (0.01%)
2.7 to 12
5.8
I, H
Rail-to-Rail In and Out
LTC6362
DC to 0.1
Resistor Set
0.1
0.06
3.9
180 (0.01%)
2.8 to 5.25
1.06
I, H
Rail-to-Rail In and Out
Part
Number
Input
Frequency
(MHz)
LTC6417
LTC6362: Precision Low Power
RRIO Differential Op Amp
DC Coupled Single-Ended Input Driving Differential 18-Bit ADC
1k
5V
Features:
• 1mA Supply Current
1k
Single 2.8V to 5.25V Supply
•
Fully Differential Input and Output
•
200μV Max Offset Voltage
•
260nA Max Input Bias Current
•
Fast Settling: 550ns to 18-Bit, 8VP–P Output
•
Low Distortion: –116dBc at 1kHz, 8VP–P
•
Rail-to-Rail Inputs and Outputs
•
3.9nV/√Hz Input-Referred Noise
•
180MHz Gain-Bandwidth Product
VIN
VOCM
0.1µF
SHDN
–
35.7Ω
+
LTC6362
AIN+
3.9nF
35.7Ω
AIN–
+ –
1k
2.5V
VREF
VDD
1k
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
1.6Msps
VS = 5V, 0V
VOUTDIFF = 8.9VP-P
HD2 = –116.0dBc
HD3 = –114.9dBc
SFDR = 110.1dB
THD = –108.0dB
SNR = 101.2dB
SINAD = 99.9dB
0
100
200
300
400
500
FREQUENCY (kHz)
LTC6362
25% Size Demo Circuit
18-BIT
LTC2379-18
SAR ADC
GND
3.9nF
AMPLITUDE (dBFS)
•
5V
3.9nF
FFT: LTC6362 Driving LTC2379-18
600
700
800
35
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
High Temp (125°C) Voltage References
Features:
• Fully Specified for High Temperature Operation
•
Outstanding Accuracy, Drift and Noise
•
Buffered Outputs for Symmetrical Drive
•
Low Dropout and Low Power Shutdown
•
Available in Ceramic Hermetic Packages
Precision 36V VIN Voltage Reference
4
(VOUT + 0.5V) < VIN < 36V
6
LT6654
CIN
0.1µF
1
2
VOUT
CL
1µF
–– Immune from Humidity Effect
–– Excellent Long Term Stability
–– Excellent Thermal Hysteresis Performance
VOUT (V)
Initial
Accuracy
Temp
Coeff Max
(ppm/°C)
IOUT
(mA)
Package
Supply
Voltage (V)
Features
–40°C to 125°C,
–55°C to 125°C
1.25, 2.048, 2.5, 3, 3.3, 4.096, 5
±0.05%
10
±10
SOT23 Ceramic LS8
2.5 to 36
1.5ppm Noise, Excellent Load & Line Regulation
LT6654B
–40°C to 125°C,
–55°C to 125°C
1.25, 2.048, 2.5, 3, 3.3, 4.096, 5
±0.1%
20
±10
SOT23 Ceramic LS8
2.5 to 36
1.5ppm Noise, Excellent Load & Line Regulation
LTC6652A
–40°C to 125°C
1.25, 2, 2.5, 3, 3.3, 4, 5
±0.05%
5
±5
MSOP8 Ceramic LS8
2.7 to 13.2
2ppm Noise, Low Dropout Shutdown <2µA
LTC6652B
–40°C to 125°C
1.25, 2, 2.5, 3, 3.3, 4, 5
±0.1%
10
±5
MSOP8 Ceramic LS8
2.7 to 13.2
2ppm Noise, Low Dropout Shutdown <2µA
LTC6655B
–40°C to 125°C
1.25, 2.048, 2.5, 3, 3.3, 4.096, 5
±0.025%
2
±5
MSOP8 Ceramic LS8
3.0 to 13.2
0.25ppm, Low Dropout Shutdown <20µA
LTC6655C
–40°C to 125°C
1.25, 2.048, 2.5, 3, 3.3, 4.096, 5
±0.05%
5
±5
MSOP8 Ceramic LS8
3.0 to 13.2
0.25ppm, Low Dropout Shutdown <20µA
LT1431MP/M
–55°C to 125°C
2.5, 5 or Adj.
±0.4%
50
1 to 100
SOP8 CERDIP
2.5 to 36
2.5V, 5V or Adjustable Shunt Regulator
Part
Number
Temperature
Range
LT6654A
LT6654: Precision, Low Noise, Buffered,
Tiny Voltage Reference
Features:
• Excellent Accuracy & Drift:
Temperature Drift
–– A-Grade (0.05% Initial Accuracy, 10ppm/°C Drift)
–– B-Grade (0.10% Initial Accuracy, 20ppm/°C Drift)
•
1.6ppmp–p Noise (0.1Hz to 10Hz)
•
±10mA Sink & Source Capability
•
100mV Dropout Voltage
•
Supply Voltage Up to 36V
•
Fully Specified from –40°C to 125°C
•
Two Package Options:
0.10
3 TYPICAL PARTS
LT6654-2.5
0.05
VOUT ACCURACY (%)
36
0.00
–0.05
–– Low Profile (1mm) ThinSOT
–– Surface Mount Ceramic LS8 (2.5V Option)
–0.10
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
3mm x 3mm SOT23
5mm x 5mm LS8
Front
5mm x 5mm LS8
Back
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Delta-Sigma Analog-to-Digital Converters
Complete Easy Drive™ Delta-Sigma ADC Family
Applications:
Features:
• Directly Digitizes High Impedance Sensors with Full Accuracy
•
Infotainment
•
Tire Pressure Sensors
•
Programmable Gain from 1 to 256
•
Alternator Monitoring
•
Alcohol Breathalyzers
•
Internal Temperature Sensor
•
Battery Management Systems
•
Data Loggers
•
Easy Drive Technology Enables Rail-to-Rail Inputs with Zero
Differential Current
•
Exhaust Systems
•
Cargo Weight Monitors
•
Temperature Measurement
•
Fuel Dispensers
Software
Compatible
16 Bits
16 Bits + PGA
24 Bits
8/16-Channel
2496
2497
2494
2495
2498
2499
5x7 QFN-38
2/4-Channel
2488
2489
2486
2487
2492
2493
4x3 DFN-14
1-Channel
2482
2483
2480
2481
2484
2485
3x3 DFN-10
Pin/Software
Compatible
Channels
Output
Rate
(Hz)
RMS
Noise
Total
Unadjusted
Error
INL
(PPM)
16
1
15
0.6μV
0.004%
16
1
15
0.6μV
0.004%
24
8/16
15
0.6μV
0.004%
Part
Number
Resolution
(Bits)
LTC2480
LTC2481
LTC2498
I/O
Maximum
Ambient
Temperature
Package
2
SPI
125°C
3x3 DFN-10
2
I2C
125°C
3x3 DFN-10
2
SPI
125°C
5x7 QFN-38
Ultra-Tiny 16-Bit Delta-Sigma ADC Family with I2C or SPI Interface
SPI
I2C
30Hz/60Hz ADCs with External Reference
60Hz ADCs with 10ppm/°C Reference
Fast (208Hz/833Hz) ADCs with 10ppm/°C Reference
Single-Ended
2450/-1
2460
2470
Differential
2452
2462
2472
Packages
2x2 DFN-6, 3x2 DFN-8, 8-Lead TSOT-23
3x3 DFN-12, 12-Lead MSOP
3x3 DFN-12, 12-Lead MSOP
Single-Ended
2451
2461
2471
Differential
2453
2463
2473
Packages
3x2 DFN-8, 8-Lead TSOT-23
3x3 DFN-12, 12-Lead MSOP
3x3 DFN-12, 12-Lead MSOP
24-Bit High Speed Delta-Sigma ADC Family
Inputs
No MUXOUT
1 Differential
4 Single-Ended/2 Differential
2440
MUXOUT/ADCIN
2442
Special Features
Dual Internal Amplifiers
Maximum Output Rate
Package
8 Single-Ended/4 Differential
16 Single-Ended/8 Differential
2444
2446
2448
2445
2447
2449
5 Differential References
4kHz
8kHz
8kHz
8kHz
SSOP-16
SSOP-36
5x7 QFN-38
5x7 QFN-38
37
38
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
SAR Analog-to-Digital Converters
Dual 16-/14-/12-Bit Simultaneous SAR ADCs with
Wide Input Common Mode Range
Features:
• 8VP-P Differential Inputs with Rail-to-Rail
Common Mode
•
81dB SNR, –90dB THD at fIN = 500kHz (16 Bits)
•
Low Drift (20ppm/°C Max), 2.048V or 4.096V
Internal Reference
•
Single 3.3V or 5V Operation
•
No Cycle Latency (LTC2321)
•
Low Power Dissipation:
–– 40mW/Ch (5Msps)
–– 30mW/Ch (2Msps)
•
CMOS or LVDS SPI-Compatible Serial I/O
•
Guaranteed Operation from –40°C to 125°C
•
28-Lead (4mm × 5mm) QFN Package
16-Bit
81dB SNR
14-Bit
80dB SNR
12-Bit
73dB SNR
2Msps
5Msps
2321-16
2323-16
2321-14
2323-14
2321-12
2323-12
Applications:
• Navigation Systems
•
Entertainment/Multifunction Display Systems
•
Li-Ion Battery Pack Suppervision
•
Gas Sensors
•
Train Control Systems
•
Fleet Management
•
Lane Departure/ Collision Avoidance Warning Systems
18-Bit 1.6Msps SAR ADC with Flexible Serial Interface
18-/16-Bit Pin-Compatible Fully/PseudoDifferential 2.5V SAR ADC Family
2.5V
10µF
Features:
• 1.6Msps Max Throughput Rate at 18 Bits
•
±2LSB INL (Max), ±0.9LSB DNL (Max)
•
120dB THD (Typ) at fIN = 2kHz
•
VREF
Power-Down Mode: 2.25µW
Digital Gain Compression
–40°C to 125°C Maximum Ambient Temperature
•
16-Pin MSOP and 4mm x 3mm DFN Packages
16-Bit
20Ω
VDD
3300pF
20Ω
0.1µF
OVDD
IN+
LTC2379-18
3300pF
–
0V
•
18-Bit
+
0V
VREF
•
1.8V TO 5V
IN–
3300pF
REF
2.5V TO 5.1V
GND
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
REF/DGC
47µF
(X5R, 0805 SIZE)
250ksps
500ksps
1Msps
1.6Msps
Fully Differential
101dB SNR
2376-18
2377-18
2378-18
2379-18
Pseudo-Differential
96.5dB SNR
2364-18
2367-18
2368-18
2369-18
Fully Differential
96dB SNR
2376-16
2377-16
2378-16
2380-16
Pseudo-Differential
94dB SNR
2364-16
2367-16
2368-16
2370-16
Power Consumption
3.4mW
6.8mW
13.5mW
18mW
2Msps
19mW
SAMPLE CLOCK
VREF
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
SAR Analog-to-Digital Converters (continued)
16-/12-Bit Serial Single/Multichannel Power ADCs
Sample Rate
Part
Number
Resolution
(Bits)
LTC1864 (L)
16
LTC1865 (L)
LTC1867(L)
Power @ Max Sample Rate
3V Supply
Maximum
Ambient
Temperature
Package
(1.22mW)
125°C
MSOP-8
4.25mW
(1.22mW)
125°C
MSOP-10
6mW
(2.25mW)
85°C
SSOP-16
(150ksps)
4.25mW
(1.22mW)
125°C
MSOP-8
(150ksps)
4.25mW
(1.22mW)
125°C
MSOP-10
(175ksps)
6mW
(2.25mW)
85°C
SSOP-16
Channels
Input
Range
5V Supply
3V Supply
5V Supply
1
0 to 5V, 0 to 3V (L)
250ksps
(150ksps)
4.25mW
16
2
0 to 5V, 0 to 3V (L)
250ksps
(150ksps)
16
8
0V to 4.096V, ±2.048V, 0 to 2.5V, ±1.25V (L)
200ksps
(175ksps)
LTC1860 (L)
12
1
0 to 5V, 0 to 3V (L)
250ksps
LTC1861 (L)
12
2
0 to 5V, 0 to 3V (L)
250ksps
LTC1863 (L)
12
8
0V to 4.096V, ±2.048V, 0 to 2.5V, ±1.25V (L)
200ksps
14-/12-Bit Single Channel and Simultaneous Sampling 3V ADCs
Part
Number
Resolution
(Bits)
LTC1403A/-1
LTC1407A/-1
LTC2351
Interface
Power @ Max
Sample Rate
Maximum
Ambient
Temperature
Package
0V to 2.5V / ±1.25V
SPI
14mW
125°C
MSOP-10
0V to 2.5V / ±1.25V
SPI
12mW
125°C
MSOP-10
0V to 2.5V, ±1.25V
SPI
16.5mW
125°C
5x5 QFN-32
Channels
Sample
Rate
Input Range
14/12
1
2.8Msps
14/12
2
3Msps
14/12
6
1.5Msps
12-Bit 5V SAR ADCs with Multiplexed Analog Inputs
Part
Number
Resolution
(Bits)
LTC2301
12
Channels
Sample
Rate
SNR
Input Range
1
14ksps
73.5dB
0V to 4.096V, ±2.048V
Interface
Power @ Max
Sample Rate
Maximum
Ambient
Temperature
Package
I2C
11.5mW
125°C
4×3 DFN-12, MSOP-12
LTC2305
12
2
14ksps
73.5dB
0V to 4.096V, ±2.048V
I2C
11.5mW
125°C
4×3 DFN-12 , MSOP-12
LTC2309
12
8
14ksps
73.4dB
0V to 4.096V, ±2.048V
I2C
11.5mW
125°C
4×4 QFN-24, TSSOP-20
LTC2302
12
1
500ksps
73.2dB
0V to 4.096V, ±2.048V
SPI
14mW
85°C
3×3 DFN-10
LTC2306
12
2
500ksps
73.2dB
0V to 4.096V, ±2.048V
SPI
14mW
85°C
3×3 DFN-10
LTC2308
12
8
500ksps
73.4dB
0V to 4.096V, ±2.048V
SPI
17.5mW
85°C
4×4 QFN-24
Tiny 14-/12-Bit 3V-5V SAR ADCs with 20ppm/°C (Max) Internal Reference
Part
Number
Resolution
(Bits)
LTC2312-12
12
LTC2315-12
LTC2312-14
Interface
Power @ Max
Sample Rate
Maximum
Ambient
Temperature
Package
SPI
9mW
125°C
TSOT23-8
73dB
SPI
19mW
125°C
TSOT23-8
77.5dB
SPI
9mW
125°C
TSOT23-8
2.5Msps
77.5dB
SPI
14mW
125°C
TSOT23-8
4.5Msps
77.5dB
SPI
18mW
125°C
TSOT23-8
Channels
Sample
Rate
SNR
1
500ksps
73dB
12
1
5Msps
14
1
500ksps
LTC2313-14
14
1
LTC2314-14
14
1
±10V True Bipolar Input 5V SAR ADCs
Channels
Sample
Rate
SNR
Input Range
Interface
Power
@ Max
Sample
Rate
16
8
100ksps
87dB
±10V
SPI
40mW
85°C
SSOP-28
16
8
100ksps
87dB
0V to 5V, 0V to 10V, ±5V or ±10V
SPI
40mW
85°C
SSOP-28
LTC2326-16
16
1
250ksps
93.5dB
±6.25V, ±10.24V, ±12.5V
SPI
28mW
125°C
MSOP-16
LTC2328-16
16
1
1Msps
93.5dB
±6.25V, ±10.24V, ±12.5V
SPI
50mW
125°C
MSOP-16
LTC2336-18
18
1
250ksps
100dB
±6.25V, ±10.24V, ±12.5V
SPI
28mW
125°C
MSOP-16
LTC2338-18
18
1
1Msps
100dB
±6.25V, ±10.24V, ±12.5V
SPI
50mW
125°C
MSOP-16
Part
Number
Resolution
(Bits)
LTC1856
LTC1859
Maximum
Ambient
Temperature
Package
39
40
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
High Speed Analog-to-Digital Converters
Features:
• Lowest Power 1.8V, 3V and 5V ADCs
•
10-Bit to 16-Bit Resolutions
•
Sample Rates from 10Msps to 310Msps
•
Single Channel to Octal Channel ADCs
•
Highest SNR and SFDR Performance
•
Flexible Digital Outputs:
–– CMOS, DDR CMOS, DDR LVDS
25Msps
40Msps
65Msps
80Msps
105Msps
125Ms0s
16-Bit 76.8dB SNR
2180
2181
2182
2183
2184
2185
Power Consumption
39mW/Ch
58mW/Ch
80mW/Ch
100mW/Ch
154mW/Ch
185mW/Ch
14-Bit 73.2dB SNR
2140-14
2141-14
2142-14
2143-14
2144-14
2145-14
12-Bit 70.6dB SNR
2140-12
2141-12
2142-12
2143-12
2144-12
2145-12
14-Bit/12-Bit
Power Consumption
24mW/Ch
33mW/Ch
46mW/Ch
55mW/Ch
75mW/Ch
95mW/Ch
9x9 QFN
1.8V Dual ADCs,
CMOS, DDR CMOS
or DDR LVDS
–– Serial LVDS
–– JESD204B
•
Features for Reducing Digital Feedback
Applications:
• Collision Avoidance Radar
•
Infotainment/GPS
•
Software-Defined Radio
•
Infrared Night Vision
•
Diagnostic Equipment
High Speed ADC Snapshot
Part
Number
Channels
Resolution
(Bits)
Sample
Rate
(Msps)
Full Power
Bandwidth
(MHz)
SNR
(dB)
SFDR
(dB)
Vcc
(V)
Power
(mW)
Maximum
Ambient
Temperature
Digital
I/O
Package
LTC2107
1
16
210
800
80
98
2.5
1280
CMOS/LVDS
85°C
7x7 QFN-48
LTC2123
2
14
250
1250
70
90
1.8
864
JESD204B
85°C
7x7 QFN-48
LTC2209
1
16
160
700
77.1
100
3.3
1450
CMOS/LVDS
85°C
9x9 QFN-64
LTC2217
1
16
105
400
81.2
100
3.3
1190
CMOS/LVDS
85°C
9x9 QFN-64
LTC2269
1
16
20
200
84.1
99
1.8
87
CMOS/DDR CMOS/DDR LVDS
85°C
7x7 QFN-48
LTC2271
2
16
20
200
84.1
99
1.8
198
Serial LVDS
85°C
7x8 QFN-52
LTC2273
1
16
80
700
77.6
100
3.3
1110
JESD204
85°C
6x6 QFN-40
LTC2195
2
16
125
550
76.8
90
1.8
432
Serial LVDS
85°C
7x8 QFN-52
LTC2261-14
1
14
125
800
73.4
85
1.8
127
CMOS/DDR CMOS/DDR LVDS
85°C
6x6 QFN-40
LTC2246H
1
14
25
575
74.5
90
3
75
CMOS
125°C
7x7 LQFP-48
LTC2299
2
14
80
575
73
90
3
444
CMOS
85°C
9x9 QFN-64
LTC2268-14
2
14
125
800
73.1
88
1.8
299
Serial LVDS
85°C
6x6 QFN-40
LTC2157-14
2
14
250
1250
70
90
1.8
650
DDR LVDS
85°C
9x9 QFN-64
LTC2170-14
4
14
25
800
73.7
90
1.8
162
Serial LVDS
85°C
7x8 QFN-52
LTM9011-14
8
14
125
800
73.1
88
1.8
1120
Serial LVDS
85°C
11x9 BGA-140
LTC2226H
1
12
25
575
71.4
90
3
75
CMOS
125°C
7x7 LQFP-48
High Speed Digital-to-Analog Converters
High Speed DAC Snapshot
Part
Number
Channels
Resolution
(Bits)
Sample
Rate
(Msps)
LTC2000
1
11, 14, 16
2500
LTC1666,
LTC1667
LTC1668
1
12, 14, 16
50
3dB Bandwidth
(MHz)
2100
Output Current
(mA)
SFDR (dBc)
Power
(mW)
Digital
I/O
Maximum
Ambient
Temperature
Package
10-60
80
2200
LVDS
85°C
9x15 BGA-170
1-10
87
180
TTL/CMOS
85°C
SSOP-28
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
PLL Synthesizers
Features:
• 6GHz-Plus Frequency Generation
•
Low –226dBc/Hz Normalized In-Band Phase Noise Floor
•
–157dBc/Hz Wideband Output Phase Noise Floor
•
–274dBc/Hz Normalized In-Band 1/f Noise
•
Excellent Spurious Performance
•
Integer-N or Fractional-N
REF
DIV
OUT
DIV
Applications:
• Infotainment/GPS
•
Satellite Uplink
•
Femtocell
•
Anti-Collision
VCO
FRAC-N DIV
∆∑ MOD
LTC6948
PLL Synthesizer Snapshot
Phase Noise @fRF=900MHz
Part Number
Features
Frequency
Range (GHz)
1MHz
Spurious
Products
40MHz
Maximum Case
Temperature
Vcc
Package
LTC6945
Integer-N PLL
0.350 to 6
–155dBc/Hz
–161dBc/Hz
–103dBc
3.3V/5V
105°C
4x5 QFN-28
LTC6946
Integer-N PLL + VCO
0.373 to 5.79
–141dBc/Hz
–157dBc/Hz
–102dBc
3.3V/5V
105°C
4x5 QFN-28
LTC6947
Frac-N PLL
0.350 to 6
–149dBc/Hz*
–160dBc/Hz*
–97dBc
3.3V/5V
105°C
4x5 QFN-28
LTC6948
Frac-N PLL + VCO
0.373 to 6.39
–140dBc/Hz
–157dBc/Hz
–98dBc
3.3V/5V
105°C
4x5 QFN-28
*At 2.4GHz
RF Detectors
Applications:
• RF Sensing
•
Remote Door Lock
•
In-Car Cellular Compenser
•
Software-Defined Radio
LTC5582
Actual Size Demo Circuit
Part
Number
Function
Op Frequency
Dynamic
Range (dB)
Detect
Range (dBm)
Accuracy
(dB)
Vcc
(V)
Icc
(mA)
Package
LT5538
Wideband Log Detector
40MHz - 3.8GHz
75
–75 to +5
+/– 1
3.0 to 5.25
29
3x3 DFN-8
LT5534
Log Average Power Detector
50MHz - 3GHz
60
–63 to –2
+/– 0.5
2.7 to 5.25
7
2x2 SC70
LTC5505
Schottky Peak Detector
0.3 - 3.5GHz
44
–32 to +18
+/– 2
2.7 to 5.25
0.5
SOT-23
LTC5507
Schottky Peak Detector
0.1 - 1GHz
46
–32 to +14
+/– 2
2.7 to 5.25
0.55
SOT-23
LT5537
Log-Linear Detector
LF - 1GHz
83
–80 to +10
+/– 1
2.7 to 5.25
13.5
3x2 DFN-8
LT5581
RMS Detector
10MHz - 6GHz
40
–34 to +6
+/– 1
2.7 to 5.25
1.4
3x2 DFN-8
LTC5582
RMS Detector
40MHz - 10GHz
57
–56 to +1
+/– 0.5
3.1 to 3.50
41.6
3x3 DFN-10
LTC5583
Dual RMS Detector
40MHz - 6GHz
60
–58 to +1
+/– 0.2
3.1 to 3.50
90.1
4x4 QFN-24
LTC5587
RMS + ADC
10MHz - 6GHz
40
–34 to +6
+/– 1
2.7 to 3.60
3
3x3 DFN-12
LTC5564
7ns Response Time Schottky Peak
600MHz - 15GHz
Detector + Fast Comparator
25
–10 to +16
+/– 2
3.0 to 5.50
44
3x3 QFN-16
41
42
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Precision Digital-to-Analog Converters
Ultra-Tiny 12-/10-/8-Bit DACs with 10ppm/°C Internal Reference
Features:
• Integrated Precision Reference
Applications:
• Engine Control Unit
–– 2.5V Full Scale 10ppm/°C (-L)
•
Fuel Injection Control Unit
–– 4.096V Full Scale 10ppm/°C (-H)
•
Display Unit
•
Maximum INL Error: ±2.5LSB (LTC2636-12)
•
GPS Receiver
•
Low Power Operation
•
Night Vision Camera
•
Power-On Reset to Zero, Hi-Z or Mid-Scale Options
•
Air Conditioners
•
Maximum Ambient Temperature from –40°C to 125°C
•
Railway Control Systems
Single
Dual
Quad
Octal
SPI
SPI
(External
Ref)
I2C
SPI
I2C
SPI
I2C
SPI
I2C
12-Bit
2630-12
2640-12
2631-12
2632-12
2633-12
2634-12
2635-12
2636-12
2637-12
10-Bit
2630-10
2640-10
2631-10
2632-10
2633-10
2634-10
2635-10
2636-10
2637-10
8-Bit
2630-8
2640-8
2631-8
2632-8
2633-8
2634-8
2635-8
2636-8
2637-8
Package
SC70-6
TSOT23-8
TSOT23-8
TSOT23-8
TSOT23-8
3x3 QFN-16
MSOP-10
3x3 QFN-16
MSOP-10
4x3 DFN-14
MSOP-16
4x3 DFN-14
MSOP-16
Low Glitch 16-/14-/12-Bit Unbuffered VOUT DACs
Features:
• Low 0.5nV•s Glitch Impulse
•
Low 120μA Supply Current
•
Fast 1μs Settling Time to 16 Bits
•
±1LSB (Max) INL, Guaranteed Monotonic
•
2.7V to 5.5V Single Supply Operation
•
Unbuffered Voltage Output Directly Drives 60k Loads
•
Maximum Ambient Temperature from –40°C to 85°C
Single SPI
Unipolar
Single SPI
Bipolar
16-Bit
2641-16
2642-16
14-Bit
2641-14
2642-14
12-Bit
2641-12
2642-12
3x3 DFN-8
MSOP-8
3x3 DFN-10
MSOP-10
Quad SPI
Quad I2C
Octal SPI
Octal I2C
16-Bit
2654-16
2655-16
2656-16
2657-16
12-Bit
2654-12
2655-12
2656-12
2657-12
4x4 QFN-20
Narrow SSOP-16
4x4 QFN-20
Narrow SSOP-16
4x5 QFN-20
TSSOP-20
4x5 QFN-20
TSSOP-20
Package
Micropower 16-/12-Bit DAC Family
Features:
• Precision 10ppm/°C Max Internal Reference
–– 2.5V Full-Scale (-L)
–– 4.096V Full-Scale (-H)
•
Maximum INL Error: ±4LSB at 16 Bits
•
2.7V to 5.5V Supply Range
•
Ultralow Crosstalk Between DACs (<1nV•s)
•
Power-On Reset to Zero- or Mid-Scale
•
Maximum Ambient Temperature from –40°C to 85°C
Package
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
43
Rugged Serial Interface Transceivers
Applications:
• Fuel Management
RS485 Link with Large Ground Loop Voltage
•
HVAC Control
•
Door, Window and Seat Controls
•
Security/Camera Systems
•
LTC2875
LTC2875
VCC1
CANH
R
RXD1
CANH
120
Engine Control Unit
TXD1
RS1
VCC2
CANL
D
R
RXD2
120
CANL
GND1 AC GROUND
LOOP 36V
PEAK
D
TXD2
RS2
GND2
Fault Protected Transceivers
Standard
Supply
Voltage
(V)
Max
Data
Rate
Bus Voltage
Protection (V)
ESD
HBM
(kV)
Maximum
Ambient
Temperature
Package
Comments
RS485
3 to 5.5
20Mbps/250kbps
±60
±15
125°C
SO-8, 3x3 DFN-8
Half-Duplex, Enable Pins
LTC2863-1/-2
RS485
3 to 5.5
20Mbps/250kbps
±60
±15
125°C
SO-8, 3x3 DFN-8
Full-Duplex
LTC2864-1/-2
RS485
3 to 5.5
20Mbps/250kbps
±60
±15
125°C
SO-14, 3x3 DFN-10
Full-Duplex, Enable Pins
LTC2865
RS485
3 to 5.5
20Mbps/250kbps
±60
±15
125°C
MSOP-12, 4x3 DFN-12
Full-Duplex, Enable Pins, Logic Supply
LTC2870
RS485/
RS232
3 to 5.5
20Mbps/500kbps
±15
±26
125°C
TSSOP-28, 4x5 QFN-28
Half-/Full-Duplex, RS485 Integrated Termination
LTC2875
CAN
3.3 or 5
4Mbps
±60
±25
125°C
SO-8, 3x3 DFN-8
±36V Common Mode Range
LT1796
CAN
5
125kbps
±60
±15
125°C
SO-8, PDIP-8
Standard SO-8 Pinout
Maximum
Ambient
Temperature
Package
Comments
Part
Number
LTC2862-1/-2
RS485/RS422 Transceivers
Duplex
Supply
Voltage
(V)
Max
Data
Rate
Shutdown
ESD
HBM
(kV)
Half
3.3
20Mbps
yes
±15
125°C
SO-8, MSOP-8, 3x3 DFN-8
LTC2851
Full
3.3
20Mbps
±15
125°C
SO-8, MSOP-8, 3x3 DFN-8
LTC2852
Full
3.3
20Mbps
yes
±15
125°C
SO-14, MSOP-10, 3x3 DFN-10
LTC2854
Half
3.3
20Mbps
yes
±25
125°C
3x3 DFN-10
Integrated Switchable Termination
LTC2855
Half
3.3
20Mbps
yes
±15
125°C
SSOP-16, 4x3 DFN-12
Integrated Switchable Termination
LTC2856-1/-2
Half
5.0
20Mbps/250kbps
yes
±15
125°C
MSOP-8, 3x3 DFN-8
LTC2857-1/-2
Full
5.0
20Mbps/250kbps
±15
125°C
MSOP-8, 3x3 DFN-8
LTC2858-1/-2
Full
5.0
20Mbps/250kbps
yes
±15
125°C
MSOP-10, 3x3 DFN-10
LTC2859
Half
5.0
20Mbps/250kbps
yes
±15
125°C
3x3 DFN-10
Integrated Switchable Termination
LTC2861
Full
5.0
20Mbps/250kbps
yes
±15
85°C
SSOP-16, 4x3 DFN-12
Integrated Switchable Termination
Maximum
Ambient
Temperature
Part
Number
LTC2850
No RCVR/DRVR Enable Pins
RS232/RS562 Transceivers
# Dri/Rec
Supply
Voltage (V)
Max
Data
Rate
Shutdown
ESD
HBM
(kV)
Package
Comments
1/1
1.8 to 5.0
250kbps
yes
±10
85°C
4x3 DFN-12
1μA Shutdown and 15μA Receivers-Active Modes
LTC2802
1/1
1.8 to 5.0
1Mbps
yes
±10
85°C
4x3 DFN-12
1μA Shutdown and 15μA Receivers-Active Modes
LTC2803
2/2
1.8 to 5.0
250kbps
yes
±10
85°C
SSOP-16, 5x3 DFN-16
1μA Shutdown and 15μA Receivers-Active Modes
LTC2804
2/2
1.8 to 5.0
1Mbps
yes
±10
85°C
SSOP-16, 5x3 DFN-16
1μA Shutdown and 15μA Receivers-Active Modes
Part
Number
LTC2801
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Isolated µModule Transceivers
Features:
• UL Rated 2500VRMS Isolation for RS485/RS422,
RS232/RS562, USB, SPI/Digital, or I2C Protocols
•
Up to 1W of Isolated Power Provided
•
No External Components Required
•
5V or 3.3V Operation
•
High Common Mode Transient
Immunity: >30kV/µs
•
Isolated 4MHz SPI Interface
5V
VL
ON
CS
SDI
SCK
Low EMI
Applications:
• Battery Management
•
Engine Control
•
Body Electronics
•
Infotainment/GPS
LTM2883-5S
VCC
SDO
SDOE
CS
SDI
SCK
ISOLATION BARRIER
44
VCC2
AVCC2
V+
AV+
V–
AV–
CS2
SDI2
SCK2
DO2
SDO
DO1
I2
SDO2
I1
GND
GND2
5V AT 20mA
12.5V AT 20mA
–12.5V AT 15mA
CS
SDI
SCK
SDO
LTM2883 Operating Through 35kV/μs CM Transient
BGA Package
32-Pin (15mm x 11.25mm x 3.42mm)
SCK
SD0
SCK2 = SD02
2V/DIV
2V/DIV
REPETITIVE
COMMON MODE
TRANSIENTS
200V/DIV
20ns/DIV
Protocol
Isolation
(VRMS)
# Drivers/
Receivers
Supply
Voltage (V)
Max
Data
Rate
Isolated
Power
Output(s)
Maximum
Ambient
Temperature
Package
LTM2881-5/3
RS485
2500
1/1
5/3.3
20Mbps/250kbps
5V (1W)
105°C
15x11 BGA-32 or LGA-32
LTM2882-5/3
RS232
2500
2/2
5/3.3
1Mbps
5V (1W)
85°C
15x11 BGA-32 or LGA-32
LTM2883-5S/3S
SPI/Digital
2500
3/3
5/3.3
10MHz
Adj. 3V-5V, Adj. ±12V (0.6W)
85°C
15x11 BGA-32
LTM2883-5I/3I
I2C
2500
3/3
5/3.3
400kHz
Adj. 3V-5V, Adj. ±12V (0.6W)
85°C
15x11 BGA-32
LTM2884
USB
2500
1/1
4.4 to 16.5
12Mbps
1W Bus Powered, 2.5W Externally Powered
105°C
15x15 BGA-44
LTM2892-S
SPI/Digital
3500
3/3
3.0 to 5.5
10MHz
—
125°C
9x6 BGA-24
LTM2892-I
I2C
3500
3/3
3.0 to 5.5
400kHz
—
125°C
9x6 BGA-24
LTC4310
I2C
*
—
3.0 to 5.5
100kHz or 400kHz
—
85°C
3x3 DFN-10, MSOP-10
LTC6820
SPI
*
—
2.7 to 5.5
1MHz
—
125°C
3x3 QFN-16, MSOP-16
Part
Number
*Depends on external transformer selection
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
I2C Bus Buffers, Multiplexers & Rise Time Accelerators
Features:
• Level Translate 1V to 5V Busses, Isolate
Capacitance,
•
Increase Fan-In, Fan-Out or Rise Times
•
400kHz Operation
•
Stuck Bus Protection
•
High ESD up to ±15kV HBM
•
Small Packages
I2C Bus Buffer with High Noise Margin, VIL = 0.3•VCC
3.3V
0.01µF
VCC
2.7k 2.7k
10k
1.3k 1.3k
ENABLE
LTC4313-1
Applications:
• Infotainment/GPS
•
5V
SCL1
SDA1
READY
READY
SCLIN
SCLOUT
SCL2
SDAIN
SDAOUT
SDA2
GND
Battery Management
Stuck Bus
Resolved with
Automatic Clocking
I2C Rise Time Accelerator for Heavily Loaded Busses
VCC
2.5V
ENABLE
10k
10k
DISCONNECT
AT TIMEOUT
SDAIN
5V/DIV
BUS2
GND
AUTOMATIC CLOCKING
SCLOUT
5V/DIV
BUS1
VCC
0.01µF
VCC
2.5V
LTC4311
READY
5V/DIV
SDAOUT
5V/DIV
I2C
SCL
SDA
STOP BIT GENERATED
STUCK LOW > 45ms
RECOVERS HIGH
DRIVEN LOW
1ms/DIV
CLK
IN
DATA
IN
CLK
IN
DATA
IN
CLK
OUT
DATA
OUT
CLK
OUT
DATA
OUT
Comparison of I2C
Waveforms for the
LTC4311 vs Resistor
Pull-Up
DEVICE N
DEVICE 1
LTC4311
1V/DIV
RPULL-UP = 15.8k
VCC = 5V
1µs/DIV
LTC4300A-1
400
•
LTC4301L
400
•
LTC4304
400
•
•
2.7 to 5.5
LTC4307
400
•
•
2.3 to 5.5
LTC4309
400
•
•
LTC4310
100 or 400
•
•
LTC4311
400
LTC4313
400
LTC4314
400
•
Bidirectional
Level
Translation (V)
•
•
•
Maximum
Ambient
Temperature
Package
•
±2
85°C
MSOP-8
•
•
±10
Supply Independent
85°C
MSOP-8, 3x3 DFN-8
•
•
•
±15
RTA Enable
85°C
MSOP-10, 3x3 DFN-10
•
•
•
±5
60mV Offset Voltage
85°C
MSOP-8, 3x3 DFN-8
1.0 to 2.3/5.5
•
•
•
±6
60mV Offset Voltage, RTA Enable,
Stuck Bus Disable
85°C
SSOP-16, 4x3 DFN-12
3.0 to 5.5
•
•
•
±5
Full I2C Isolation
85°C
3x3 DFN-10, MSOP-10
±8
Rise Time Accelerator only
85°C
2mm x 2mm DFN-6,
SC70-6
±4
VIL=0.3VCC, Adj. RTA
85°C
SSOP-8, 3x3 DFN-8
±4
4:1 I2C Multiplexer with Bus Buffer,
VIL=0.3VCC, Adj. RTA, Stuck Bus
Disable
85°C
SSOP-8, 3x3 DFN-8
GPIO or
FAULT
•
1.0 to 2.7/5.5
VCC2
2.7 to 5.5
•
•
HBM
ESD
(kV)
READY
Data
Rate
(kHz)
ENABLE
Part
Number
Stuck Bus
Disconnect/
Recovery
Rise Time
Acceleration
Hot
Swappable
CLD = 200pF
fI2C = 100kHz
•
•
•
•
1.5V to 5.5
1.5V to 5.5
•
•
•
•
•
•
•
Comments
45
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
Power over Ethernet (PoE) Controllers
Features:
• LTPoE++™ (Up to 90W), PoE+
(25.5W) and PoE (13W) Power Sourcing
Equipment (PSE) & Powered Device
(PD) Controllers
•
•
•
Typical PoE System
PSE
PD
GND
LTPoE++ Devices: Plug-n-Play, Backward
Compatible with PoE+ and PoE Equipment
Uses Low RDS(ON) External Components
for Lowest Heat Dissipation and Highest
System Efficiency
RJ45
DGND
RJ45
1
AGND
2
PSE
CONTROLLER
1
2
DATA PAIR
3
VEE SENSE GATE OUT
6
GND
RCLASS PWRGD
PD
CONTROLLER
–VOUT
–VIN
3
6
DATA PAIR
Extremely Robust:
4
–– PSE: Cable Discharge Protection, 80V
Input Pins, 4-Point PD Detection
5
4
SPARE PAIR
7
–– PD: 100V Input Pins, Overtemperature
Protection
8
5
7
SPARE PAIR
8
Type
# of
Ports
Max
Power
(W)
Standard
LT4275A
PD
1
90
LTPoE++
LTC4265
PD
1
25.5
PoE+
LTC4269/78
PD
1
25.5
PoE+
LT4275B
PD
1
25.5
PoE+
LTC4257-1
PD
1
13
PoE
LTC4267
PD
1
13
PoE
LT4275C
PD
1
13
PoE
LTC4274
PSE
1
90
LTPoE++, PoE+, or PoE
•
•
LTC4266
PSE
4
90
LTPoE++, PoE+, or PoE
•
•
LTC4290/71
PSE
8
90
LTPoE++, PoE+, or PoE
•
LTC4270/71
PSE
12
90
LTPoE++, PoE+, or PoE
•
Part
Number
•
•
LTPoE++
Classification
Two-Event
Classification
One-Event
Classification
Security/Camera Systems
Integrated
Signature
Resistor
Infotainment/GPS
•
Integrated
MOSFET
Applications:
• Body Electronics
•
•
Maximum
Ambient
Temperature
Package
+
DC/DC
V
CONVERTER OUT
0.25Ω
–55V
Integrated
Switcher
46
•
•
•
125°C
MSOP-10, 3x3 DFN-10
•
•
•
•
85°C
4x3 DFN-12
•
•
•
•
85°C
7x4 DFN-32
•
•
•
125°C
MSOP-10, 3x3 DFN-10
•
•
•
85°C
SO-8, 3x3 DFN-8
•
•
•
85°C
SSOP-16, 3x5 DFN-16
•
•
125°C
MSOP-10, 3x3 DFN-10
•
85°C
5x7 QFN-38
•
85°C
5x7 QFN-38
•
•
85°C
6x6 QFN-52, 4x4 QFN-24
•
•
85°C
7x8 QFN-52, 4x4 QFN-24
–
L I N E A R A U T O M O T I V E & T R A N S P O R TAT I O N S O L U T I O N S
SmartMesh® — Embedded Wireless Sensor Networking
Embedded chips and printed circuit boards with mesh networking
software that deliver:
•
>99.999% Data Reliability in the most challenging RF environments
•
>10 Year Battery Life for every node in the network, including routing ones
•
Complete Wireless Mesh Solution so no network stack development is required
Features:
• Self-Forming, Self-Sustaining, Multi-Hop Mesh Network
•
Time Synchronized Channel Hopping (TSCH) link layer, pioneered by
Dust Networks®
–– Channel Hopping on Each Transmission for frequency diversity
–– Redundant Pathways for spatial diversity
–– Low Power Packet Exchange — Duty cycle of <1% without sacrificing
network availability
–– Zero In-Network Packet Collisions for a highly scalable network
•
Built-In Network Optimization Algorithms fix problems before they occur
•
2.4GHz IEEE 802.15.4 transceivers operate in globally license-free
2.4GHz band
Benefits:
• Field Proven Network
–– >35,000 customer networks
–– >1 Billion hours of operation in harsh RF environments
•
Highly Resilient, Low Power Communications in some of the most
demanding applications:
–– Tough RF Environments with extensive metal and concrete, including
industrial plants, data centers, commercial building monitoring, bridges,
tunnels
–– Networks on Moving Vehicles, including rail cars, cargo containers,
semi-trucks and aircraft
–– Dense Deployments, where thousands of nodes operate within radio
range of each other, for instance rail yards, data centers, utility scale
solar farms
–– Large Area Networks, such as shipyards, street parking applications
–– Long, Extended Networks, including freight trains, pipelines, mines,
tunnels
–– Remote Monitoring, where all nodes must be powered by battery or
energy-harvesting, such as oil fields or environmental monitoring
•
Place a sensor anywhere – no communications or power lines to wireless
nodes required
•
Fast Time to Market
–– Wireless network software is already complete, heavily tested and has
proven performance
SmartMesh IP™ Motes and Managers are available as QFN
chips and as pre-certified Printed Circuit Boards
–– Hardware available as QFN chips or pre-certified PCB modules
To learn more about SmartMesh Embedded Wireless Sensor Mesh Networks, visit www.linear.com/dust.
47
N o t es :
S a l es O f f ice s
N O RT H AME RI CA
NO RT HE A S T U. S .
C H IN A
K OREA
WES TER N U .S.
Connecticut
Tel: (860) 228-4104
Room 1763, Office Building
New Century Hotel
No. 6 Southern Road of Capital Gym
Haidian District
Beijing, China 100044
Tel: +86 (10) 6801-1080
Fax: +86 (10) 6805-4030
Yundang Building, #1002
Samsung-Dong 144-23
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Tel: +82 (2) 792-1617
Fax: +82 (2) 792-1619
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Fax: (916) 787-0110
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Fax: (858) 638-7231
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North Chelmsford, MA 01863
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Fax: (978) 656-4760
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Tel: (978) 656-4750
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Bensalem, PA 19020
Tel: (215) 638-9667
Fax: (215) 638-9764
S O UT HE A S T U. S .
Huntsville, AL
Tel: (256) 881-9850
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Tel: (407) 688-7616
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Tel: (813) 634-9434
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Tel: (303) 926-0002
Fax: (303) 530-1477
170 Weston Oaks Ct.
Cary, NC 27513
Tel: (919) 677-0066
Fax: (919) 678-0041
Salt Lake City, NV
Tel: (801) 731-8008
8500 N. Mopac, Ste. 603
Austin, TX 78759
Tel: (512) 795-8000
Fax: (512) 795-0491
5285 SW Meadows Rd., Ste. 240
Lake Oswego, OR 97035
Tel: (503) 431-6960
Fax: (503) 431-6961
2018 156th Ave. NE, Ste. 100
Bellevue, WA 98007
Tel: (425) 748-5010
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MIDWES T U .S.
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Schaumburg, IL 60173
Tel: (847) 925-0860
Fax: (847) 925-0878
Indiana
Tel: (847) 925-0860
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Tel: (847) 925-0860
Kansas
Tel: (913) 634-7966
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Tel: (440) 239-0817
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Tel: (713) 463-5001
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Plano, TX 75075
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Fax: (972) 380-5138
CA NA DA
Calgary, AB
Tel: (403) 455-3577
Vancouver, BC
Tel: (604) 783-3084
Ottawa, ON
Tel: (613) 680-3473
Toronto, ON
Tel: (440) 239-0817
Montreal, QC
Tel: (514) 236-6261
7805 Telegraph Rd., Ste. 225
Bloomington, MN 55438
Tel: (952) 903-0605
A SIA /PA C IFIC
Missouri
Tel: (913) 634-7966
133 Alexander Street
Crows Nest, NSW 2065, Australia
Tel: +61 (0)2 9432 7803
Fax: +61 (0)2 9439 2738
Columbus, OH
Tel: (614) 488-4466
7550 Lucerne Dr., Ste. 106
Middleburg Heights, OH 44130
Tel: (440) 239-0817
Fax: (440) 239-1466
A US T R A L I A /NE W Z E AL AN D
Suite 112B, 89 High Street
Kew, Victoria 3101, Australia
Tel: +61 3 9854 6120
Unit 09, 14/F, Complex Building
No. 88 Shenghe Yi Rd., Hi-Tech Zone
Sichuan Province, Chengdu City
China 610041
Tel: +86 028-8555 9725
Fax: +86 028-8542 6859
Unit 1503-04, Metroplaza Tower 2
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: +852 2428-0303
Fax: +852 2348-0885
Room 2701, City Gateway
No. 398 Cao Xi North Road
Shanghai, China 200030
Tel: +86 (21) 6375-9478
Fax: +86 (21) 5465-5918
Room 2109-2111, 21/F, Block D
Southern International Plaza
3013 Yitian Road, Futian District
Shenzhen, China 518048
Tel: +86 755-2360-4866
Fax: +86 755-2360-4966
Room 1805, Tower A
Optics Valley International Plaza
No. 889 Luoyu Rd., Wuchang District
Wuhan, China 430074
Tel: +86 027-8665 9231
Fax: +86 027-8665 9241
Rm. 2410, Tower A, Greenland SOHO
No. 5 ZhangBa 1 Road
High-Tech Development Zone
Shaanxi Province
Xian, China 710065
Tel: +86 029-6851 8978 /68518979
Fax: +86 029-6851 8976
IN D IA
602, 6th Floor, Prestige Meridian-1
No. 29, MG Road, Bangalore
560001, India
Tel: +91 80 4012-4610
Fax: +91 80 4012-4612
JAPAN
7F, Sakuradori Ohtsu KT Bldg.
3-20-22 Marunouchi, Naka-ku
Nagoya-shi, 460-0002, Japan
Tel: +81 (52) 955-0056
Fax: +81 (52) 955-0058
6F Kearny Place Honmachi Bldg.
1-6-13 Awaza, Nishi-ku
Osaka-shi, 550-0011, Japan
Tel: +81 (6) 6533-5880
Fax: +81 (6) 6543-2588
8F Shuwa Kioicho Park Bldg.
3-6 Kioicho Chiyoda-ku
Tokyo, 102-0094, Japan
Tel: +81 (3) 5226-7291
Fax: +81 (3) 5226-0268
Wisconsin
Tel: (262) 331-4040
, LT, LTC, LTM, Linear Technology, the Linear logo, the Dust Networks logo, Burst Mode, Dust Networks, Over-The-Top, PolyPhase, Silent Switcher, SmartMesh, TimerBlox, and µModule
are registered trademarks and Bat-Track, Easy Drive, isoSPI, LTPoE++, LTpowerPlay, PowerPath, SmartMesh IP and ThinSOT are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
© 2014 Linear Technology Corporation
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E U R O PE
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Tel: +358 (0)46 712 2171
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Linear Technology Corporation
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