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 >80dB@100kHz, 75dB@1MHz, >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 Kangnam-Ku Seoul 135-090, Korea Tel: +82 (2) 792-1617 Fax: +82 (2) 792-1619 2085 E. Technology Cir., Ste. 101 Tempe, AZ 85284 Tel: (480) 777-1600 Fax: (480) 838-1104 7595 Irvine Center Dr., Ste. 120 Irvine, CA 92618 Tel: (949) 453-4650 Fax: (949) 453-4765 720 Sycamore Dr. Milpitas, CA 95035 Tel: (408) 428-2050 Fax: (408) 432-6331 11300 W. 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Plano Pkwy., Ste. 109 Plano, TX 75075 Tel: (972) 733-3071 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. 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