Automotive Regulator Selection Guide Rev. 1.2 (6,861KB)

Automotive Regulator Selection Guide
Rev. 1.2
www.rohm.com
Power Supply Requirements the Drive Automotive Evolution
EV/HEV Adoption
Increase of Energy
Consumption(while Parked)
Start-Stop System
Drive Assist System
(Camera, Rader)
INDEX
Power Supply Requirements ・・・・・・・・・・・・・・・・
1,2
Switching Regulators
Input Voltage vs. Output Current Map ・・・・・・・・
3
Product Chart
・・・・・・・・・・・・・・・・・・・
4
Primary Buck Regulator: Technical Topics ・・・ 5-7
Primary Buck Regulator: Product Table
・・・
8
Secondary Buck Regulator: Technical Topics ・・ 9,10
Secondary Buck Regulator: Product Table ・・・
11
Primary Buck-Boost Regulators
・・・・・・・・
12
Linear Regulators
Increase of car-electronics
and circuit size
Increase of Energy
Consumption(while Parked)
ROHM Power Supply IC Advantages
➤ P5,6,15
Automotive Regulator Selection Guide
➤ P7,12
➤ P9,10,21
Input Voltage vs. Output Current Map ・・・・・・・・
13
Product Chart
・・・・・・・・・・・・・・・・・・・
14
Primary Buck Regulator: Technical Topics ・・・
15
Primary Buck Regulator: Product Table
・・・ 16-20
Secondary Buck Regulator: Technical Topics ・・
21
Secondary Buck Regulator: Product Table ・・・
22
Applications
Thermal Resistance · Characteristics ・・・・・・・・・ 23,24
Noise Characteristics · Tolerance
・・・・・・・・・・
25
Checkpoints for PCB Design
・・・・・・・・・・
26
Conductive Noise Measure Example ・・・・・・・・・
27
Appendix: Technique of Data Acquisition ・・・・・
28
1
Primary
Switching
Regulators
➤ P3-8,12
12V
Battery
Primary
Linear
Regulators
➤ P13-20
Secondary
Switching
Regulators
➤ P3,4,9-11
Secondary
Linear
Regulators
➤ P13,14,21,22
Switching Regulator (DC/DC)
Linear Regulator (LDO)
Features
Buck / Boost / Buck-Boost
(Depends on model)
Many external parts ⇒ Higher total cost
High conversion efficiency ⇒ Low heat generation
Simple circuit configuration
Less external parts ⇒ Lower total cost
(vs DC/DC)
Low conversion efficiency ⇒ High heat generation
Voltage
Generation
PWM (width) / PFM (frequency) ⇒ Significant noise
Resistor divider ⇒ Low noise
Applications
Contributes to greater energy savings, suitable for
both low and high power systems
Low noise, low-cost solution
Ideal for low power devices
ROHM Power Supply IC Advantages
Noise Characteristics · Tolerance ➤ P25-27
Automotive Regulator Selection Guide
Thermal Resistance · Characteristics ➤ P23,24
2
Automotive Step-Down Switching Regulator Lineup
Primary 【Switching】
Secondary 【Switching】
BD9035AEFV-C ※Buck-Boost
Ext.
Rated Voltage
Rated Voltage
BD9015KV-M / BD9016KV-M
BD90640EFJ-C / BD90640HFP-C
Output Current (A)
4.0
BD90540EFV-C / BD90540MUV-C
BD90532 / 35 / 38EFJ-C
3.0
BD90530EFV-C / BD90530MUV-C
BD90730NUX-C
2.5
BD90620EFJ-C / BD90620HFP-C
BD90522 / 25 / 28EFJ-C
BD90520EFV-C / BD90520MUV-C
2.0
BD9060F / BD9060HFP-C
BD99010EFV-M / BD99011EFV-M
1.25
BD90610EFJ-C
BD90571EFJ-C
1.0
1.7 2.4 2.6 2.69 3.5 3.6 3.8 3.9 4.0 4.17 4.3 4.37 4.5 4.6 5.0 5.5 5.6 5.8 5.9 6.0 7.0 8.0 9.0 10
Under development
Automotive Regulator Selection Guide
14
15
24
26.5
30
33
35
36
40
42
45
50
Input Rail Voltage (V)
3
Automotive Step-Down Switching Regulator Product Family
Input
Primary
Control Mode
Buck-Boost
Secondary
Buck
Output FET
Internal
External
Quiescent
Current
Ultra Low
Control Mode
Control Mode
Voltage
Mode
Standard
Control Mode
Current
Mode
Control Mode
Current
Mode
Voltage
Mode
Control Mode
Current
Mode
Current
Mode
Output
Voltage
Fixed
BD9035AEFV-C
BD9015KV-M
BD99010EFV-M
0.8-13V, 100k-600kHz
0.8-10V, 250k-550kHz
Low-side FET OFF
in Protected Mode
3.3V,2.0A,200-500kHz
BD99011EFV-M
BD9060F-C
BD9060HFP-C
BD90640EFJ-C
BD90640HFP-C
0.8-VIN,2.0A,50k-500kHz
0.8-VIN,4.0A,50k-600kHz
5.0V,2.0A,200k-500kHz
BD90620EFJ-C
BD90620HFP-C
BD9016KV-M
0.8-10V, 250k-550kHz
Low-side FET ON
in Protected Mode
0.8-VIN,2.0A,50k-600kHz
BD90610EFJ-C
0.8-VIN,1.0A,50k-600kHz
BD90730NUX-C
( Under development)
0.8-TBD,3.0A,
100k-2400kHz
BD90532EFJ-C
1.2V, 3.0A, 2.25MHz
BD90522EFJ-C
1.2V, 2.0A, 2.25MHz
BD90571EFJ-C
1.2V, 1.0A, 2.25MHz
BD90535EFJ-C
1.5V, 3.0A, 2.25MHz
Variable
BD90540EFV-C
BD90540MUV-C
(
Under development )
Variable, 4.0A,
0.3M-2.4MHz
BD90530EFV-C
BD90530MUV-C
(
Under development )
Variable, 3.0A,
0.3M-2.4MHz
BD90525EFJ-C
1.5V, 2.0A, 2.25MHz
BD90538EFJ-C
1.8V, 3.0A, 2.25MHz
BD90528EFJ-C
BD90520EFV-C
BD90520MUV-C
(
Under development )
Variable, 2.0A,
0.3M-2.4MHz
1.8V, 2.0A, 2.25MHz
P8,12
P8
P5,6,8
P8
Primary Switching Regulators
Automotive Regulator Selection Guide
P7,8
P9-11
P9-11
Secondary Switching Regulators
4
Primary Switching Regulators (BD9901xEFV-M Series)
Low Quiescent Current Solutions
The BD99010EFV-M and BD99011EFV-M are low Iq step-down DC/DC converters that
integrate a power MOSFET and provide 3.3V and 5V output, respectively.
SLLMTM (Simple Light Load Mode) is included, ensuring low current consumption and
high efficiency at light loads as well as high efficiency during heavy loads while providing
regulated output voltage. In addition, the ICs are compliant with automotive standards
and support a maximum voltage of 42V.
A minimum input voltage of 3.6V maintains output when cold cranking, and current
mode control delivers fast transient response and easy phase compensation. Both
models are available in a HTSSOP-B24 package, making them ideal for applications
requiring few external components and a small PCB footprint.
BD9901xEFV-M
PGND
1
2
VIN
PVIN
PVIN
3
4
220µF
CIN
+4.7µF
VIN
6
0.1µF
C6
PGND
7
3.3V, 2A
10
MCU, CAN
Battery
BD99011EFV-M
5.0V, 2A
MCU, CAN
Product Overview: BD9901xEFV-M
Low Quiescent Current
 Low quiescent current:
22µA (Typ.)
High Efficiency
HTSSOP-B24
 Synchronous rectification (No external Schottky diode required)
 Simple Light Load Mode (SLLMTM)
Supports Cold Cranking Operation (3.6V Operation)
 Input voltage range:
3.6V to 35V (42V rating)
(Initial startup over 3.9V)
 Output voltage:
3.3V±2% (BD99010EFV-M)
5.0V±2% (BD99011EFV-M)
 Switching output current:
2A (Max.)
 Switching frequency:
200k to 500kHz
 Integrated switching FET:
Pch 170mΩ (Typ.), Nch 130mΩ (Typ.)
 Soft Start built in
 Enable pin compatible with CMOS logic and battery voltages
 Forced PMW Mode function
 Current Mode control with external compensation circuit
 Over Current/Short Circuit protection, VOUT Over Voltage protection,
Under Voltage Lock Out, and thermal protection circuits
Automotive Regulator Selection Guide
75kΩ
RRT
11
33
R1
kΩ
1000
C7
pF
SW
SW
22
12
RT
COMP
GND
REG
20
PGND 10µH
L1
19
18
VREGB
8
9
BD99010EFV-M
PGND
23
21
5
GND
12V
PGND
PGND
24
REG_L
VOUT
EN
VOUT
22µF
COUT
x3
17
16
PGND
15
EN
14
FPWM
13
FPWM
1µF
C5
GND GND GND GND
GND
PGND
BD9901xEFV Application Circuit
BD99011EFV-M Efficiency vs Load Current
VIN=13.2V , VOUT=5.0V (Log scale)
BD99011EFV-M Efficiency vs Load Current
VIN=13.2V , VOUT=5.0V (Linear scale)
5
SLLMTM (Simple Light Load Mode) Control
During lighter loads operation automatically switches to Simple Light Load
Mode (SLLMTM), which utilizes PWM control and compares the output voltage to
an internal reference voltage. When the output voltage drops below the
reference voltage switching pulses are output to increase the voltage above the
reference level, after which the SW output turns off and the controller goes into
a very low current consumption standby mode until the output voltage dips
below the reference voltage again.
When the time between switching pulse skips becomes short the devices
exit SLLMTM mode and resume normal continuous switching operation. The
load level of the switching pulse skip can be adjusted by the input voltage
and inductor value.
SLLM
PWM
BD99010EFV-M Mode Transition
(SLLM to PWM)
BD99011EFV-M Mode Transition
(SLLM to PWM)
SW and VOUT Waveforms at SLLM
(Light load)
SW and VOUT Waveforms at PWM
(Heavy load)
Current Mode PWM Control Diagram
SLLM Switching Timing Chart
Automotive Regulator Selection Guide
PWM Switching Timing Chart
SLLMTM control at light loads differs from regular PWM, resulting in higher output ripple voltage.
Also, during SLLMTM the transient response for heavy loads is slower.
6
Primary Switching Regulators (BD906xxEFJ-C Series)
Low Voltage Operation Solutions
The BD906xxEFJ-C series of step-down switching regulators integrate a high voltage
power MOSFET and make it possible to easily set the operating frequency via external
resistor. Features include wide input voltage (3.5V to 36V) and operating
temperature (-40゚C to +125゚C) ranges, along with an external synchronization input pin
that enables synchronous operation via external clock.
In addition, the internal Pch MOSFET can operate at 100% ON duty to ensure stable
operation even during severe battery drops during conventional cranking or idling stop
operation.
BD906xxEFJ-C
PVIN
L1
15µH
SW
VO
D1
VIN
22µHx2
15µH
CO
R1
43kΩ
C2
OPEN
VIN
BD90610EFJ-C
12V
Battery
Variable, 1A
MCU, CAN
CBULK
220µF
CIN
4.7µF
FB
RT
BD90620EFJ-C
BD90620HFP-C
Variable, 2A
BD90640EFJ-C
BD90640HFP-C
Variable, 4A
CRT
100pF
MCU, CAN
RRT
27kΩ
8.2kΩ
R2
VEN/SYNC
VC
EN/SYNC
R3 4700pF
C1
20kΩ
GND
MCU, CAN
Product Overview: BD906xxEFJ-C/HFP-C
BD906xxEFJ-C Application Circuit
Wide Input Voltage Range
 Input voltage range:
3.5V to 36V (42V rating)
(Initial startup over 3.9V)
 Built-in Pch FET enables 100% duty
HTSOPJ-8
BD906xxEFJ-C
 Circuit current at shutdown:
0µA (Typ.)
 Reference voltage:
0.8V±2% (Ta: -40゚C to +125゚C)
0.8V±1% (Ta: 25゚C )
 Switch output current:
1.25A Max. (BD90610EFJ-C)
2.5A Max. (BD90620EFJ-C/HFP-C)
4A Max. (BD90640EFJ-C/HFP-C)
 Switching frequency:
50k to 600kHz
 Internal switching FET:
Pch 160mΩ (Typ.)
 Soft Start function
 Enable pin compatible with CMOS logic and battery voltages
 Current mode control with external compensation circuit
HRP7
BD906xxHFP-C
 Over Current/Short Circuit protection, Under Voltage Lock Out,
and Thermal Shutdown circuits
Automotive Regulator Selection Guide
Input Voltage
12V⇒5V⇒12V
From above
BD906XXEFJ-C
Nch Switching
Regulator
Output voltage drop is small even if
the Input Voltage ≑ Output Voltage”.
BD906xxEFJ-C Output Waveform
in Input Voltage Change
BD906xxEFJ-C Efficiency vs Load Current
VIN=13.2V
7
Primary Switching Regulator Selection Guide
Output FET
Number
of
Channels
Rated
Voltage
(V)
High Side
(Typ.)
Low Side
(Typ.)
Min.
Max.
Output Voltage
(V)
Typ.
Switching
Frequency
Range
(kHz)
Operating
Circuit
Control
Current
Mode
(mA)
Typ.
Accuracy
(%)
Power Good
Part No.
Reference
(Output)
Voltage
Accuracy
(%)
External
Synchronization
Variable
Soft Start
Synchronous
Rectification
Simple Light
Load Mode
Over Current
Protection
Thermal
Shutdown
Overvoltage
Protection
Functions
Input Voltage
Output
Range
Current
(V)
(A)
Max.
Operating
Temperature
Range
(゚C)
Package
BD9015KV-M
2
Ext. Nch
Ext. Nch
35
-
3.9
30
Variable (0.8-10)
±1.5
250 ~ 550
±10
Current
4
✓
✓
✓
✓
-
SR
SR
✓
-40 ~ 105
VQFP48C
BD9016KV-M
2
Ext. Nch
Ext. Nch
35
-
3.9
30
Variable (0.8-10)
±1.5
250 ~ 550
±10
Current
4
✓
✓
✓
✓
-
SR
SR
✓
-40 ~ 105
VQFP48C
BD99010EFV-M
1
Pch (170mΩ) Nch (130mΩ)
42
2.0
3.6
35
3.3
(±2.0)
200 ~ 500
±20
Current
0.02
-
-
-
✓
✓
SR
SR
✓
-40 ~ 105
HTSSOP-B24
BD99011EFV-M
1
Pch (170mΩ) Nch (130mΩ)
42
2.0
3.6
35
5.0
(±2.0)
200 ~ 500
±20
Current
0.02
-
-
-
✓
✓
SR
SR
✓
-40 ~ 105
HTSSOP-B24
BD9060F-C
1
Pch (300mΩ)
-
42
2.0
5.0
35
Variable (0.8-VIN)
±2.0
50 ~ 550
±5
Voltage
4.5
-
✓
-
-
-
SR
SR
-
-40 ~ 125
SOP8
BD9060HFP-C
1
Pch (300mΩ)
-
42
2.0
5.0
35
Variable (0.8-VIN)
±2.0
50 ~ 550
±5
Voltage
4.5
-
✓
-
-
-
SR
SR
-
-40 ~ 125
HRP7
BD90640HFP-C
1
Pch (160mΩ)
-
42
4.0
3.5
36
Variable (0.8-VIN)
±2.0
50 ~ 600
±10
Current
2.2
-
✓
✓
-
-
SR
SR
-
-40 ~ 125
HRP7
BD90640EFJ-C
1
Pch (160mΩ)
-
42
4.0
3.5
36
Variable (0.8-VIN)
±2.0
50 ~ 600
±10
Current
2.2
-
✓
✓
-
-
SR
SR
-
-40 ~ 125
HTSOP-J8
BD90620HFP-C
1
Pch (160mΩ)
-
42
2.5
3.5
36
Variable (0.8-VIN)
±2.0
50 ~ 600
±10
Current
2.2
-
✓
✓
-
-
SR
SR
-
-40 ~ 125
HRP7
BD90620EFJ-C
1
Pch (160mΩ)
-
42
2.5
3.5
36
Variable (0.8-VIN)
±2.0
50 ~ 600
±10
Current
2.2
-
✓
✓
-
-
SR
SR
-
-40 ~ 125
HTSOP-J8
BD90610EFJ-C
1
Pch (160mΩ)
-
42
1.25
3.5
36
Variable (0.8-VIN)
±2.0
50 ~ 600
±10
Current
2.2
-
✓
✓
-
-
SR
SR
-
-40 ~ 125
HTSOP-J8
BD90730NUX-C
1
Nch (180mΩ)
-
42
3.0
3.5
36
Variable (0.8-TBD)
±2.0
100 ~ 2400
±10
Current
1.9
✓
✓
✓
-
-
L
SR
✓
-40 ~ 125
VSON10
※ SR:Self Recovery , L:Latch
Under development
VQFP48C
HTSSOP-B24
SOP8
HRP7
VSON10
※ Please refer to page 11 for the HTSOP-J8 package.
Automotive Regulator Selection Guide
8
Secondary Switching Regulators (BD905xx-C Series)
Space-Saving High Efficiency Solutions
12V
Battery
Primary
Regulator
5V
BD90571EFJ-C
BD9052xEFJ-C
BD9053xEFJ-C
1.2V, 1A
1.2/1.5/1.8V, 2A
1.2/1.5/1.8V, 3A
BD905x0EFV-C
BD905x0MUV-C
Variable, 2/3/4A
20mm
2 VIN
PGND 7
3 EN
FB 6
4 GND
MCU
MCU
※BD90571EFJ-C
/ 1.5µH
BD905xxEFJ-C
1 PVIN
SW 8
20mm
The BD905xx-C series of 2.25MHz fixed frequency synchronous rectification step-down DC/DC
converters integrate a phase compensation circuit and feedback resistor that supplies a fixed
output voltage of 1.2V/1.5V/1.8V, making it possible to configure applications with fewer
external components.
The BD905x0 series consists of variable (0.3 to 2.4MHz) synchronous rectification step-down
DC/DC converters featuring an internal external synchronization function and low current
consumption (65uA) that enables high efficiency operation even at light loads.
BD90571EFJ-C PCB
※BD90571EFJ-C
/ 47µF×1
MODE 5
BD905xxEFJ-C Application Circuit
VIN
BD905x0EFV-C/MUV-C
1 PGND
Product Overview: BD905xxFEJ-C / BD905x0EFV-C/MUV-C
 Integrated output feedback resistors and phase compensation
 Synchronous rectification type
 Low current consumption: 65µA (Variable type)
 Selectable Light Load/PWM Fixed modes
 Switching frequency: 2.25MHz±20% (Fixed type)
0.3M to 2.4MHz±15% (Variable type)
HTSSOP-B20
External synchronous function(Variable type)
 Input voltage range: 2.6V (Variable)/2.69V (Fixed) to 5.5V (7V Rating)
 Integrated SW FET: Pch 85mΩ (Typ.), Nch 70mΩ (Typ.) (Fixed type)
Pch 90mΩ (Typ.), Nch 60mΩ (Typ.) (Variable type)
 Current mode control
 Over Current/Short Circuit protection, VOUT Over Voltage protection,
Under Voltage Lock Out, and thermal protection circuits
Output
Current
1A
1.0µH
VOUT
22µF
HTSOP-J8
22µF
VIN
22µF
22µF
10Ω
1µF
EN
MODE
VQFN20SV4040
0.01
µF
2 PGND
10kΩ
PGOOD 20
CTL 19
3 SW
SYNC 18
4 SW
SEL 17
5 N.C
RT 16
6 PVIN
N.C 15
7 PVIN
FB 14
8 VIN
SS 13
9 EN
COMP 12
VOUT
100kΩ
OPEN
30kΩ
OPEN
30kΩ
10 MODE
GND 11
10kΩ
2200pF OPEN 3300pF
BD905x0EFV-C Application Circuit
Output (Reference) Voltage
Variable
(0.8V±1.5%)
1.2V±2%
1.5V±2%
1.8V±2%
-
BD90571EFJ-C
-
-
2A
BD90520EFV-C BD90522EFJ-C BD90525EFJ-C BD90528EFJ-C
3A
BD90530EFV-C BD90532EFJ-C BD90535EFJ-C BD90538EFJ-C
4A
BD90540EFV-C
-
-
Under development
BD905xxFEJ-C / BD905x0EFV-C/MUV-C Lineup
Automotive Regulator Selection Guide
-
BD90532EFJ-C
Efficiency vs Load Current
BD90535EFJ-C
Efficiency vs Load Current
BD90538EFJ-C
Efficiency vs Load Current
9
Load Response for Each Mode
Setting the MODE pin voltage below 0.7V switches operation to Light Load Mode.
Intermittent operation is automatically performed in Light Load Mode when the output
load current is small. This suppresses switching loss, improving efficiency compared
with PWM fixed mode. It should be noted that the load current during intermittent
operation will change depending on the input voltage and inductor value.
If the MODE pin is set to 2.1V or more PWM fixed mode operation is performed.
And although efficiency is decreased at light loads compared with Light Load Mode,
fixed frequency switching operation is implemented throughout the entire load range,
making noise countermeasures relatively easier.
BD905xxEFJ-C
1 PVIN
SW 8
2 VIN
PGND 7
3 EN
FB 6
PWM Mode
Load Response
BD90535EFJ-C , MODE=0V
IOUT=0→3.0→0A
Load Response
BD90535EFJ-C , MODE=3.3V
IOUT=0→3.0→0A
※BD90571EFJ-C
/ 47µF×1
MODE 5
Reference Application Circuit
BD90571EFJ-C
4 GND
※BD90571EFJ-C
/ 1.5µH
Light Load Mode
BD90535EFJ-C
Light Load and PWM Fixed Modes
Light Load
PWM
Load Response
BD90571EFJ-C , MODE=0V
IOUT=0→1.0→0A
Switching Operation at Light Load Mode Switching Operation at PWM Mode
Automotive Regulator Selection Guide
Load response
BD90571EFJ-C , MODE=3.3V
IOUT=0→1.0→0A
SLLMTM control at light loads differs from regular PWM, resulting in higher output
ripple voltage.
Also, during SLLMTM the transient response for heavy loads is slower.
10
Secondary Switching Regulator Selection Guide
Number
of
Channels
Output FET
High Side
(Typ.)
Low Side
(Typ.)
Rated
Voltage
(V)
Min.
Max.
Output Voltage
(V)
Typ.
Switching
Frequency
Range
(MHz)
Operating
Circuit
Control
Current
Mode
(mA)
Typ.
Accuracy
(%)
Power Good
Part No.
Reference
(Output)
Voltage
Accuracy
(%)
External
Synchronization
Variable
Soft Start
Synchronous
Rectification
Simple Light
Mode
Over Current
Protection
Thermal
Shutdown
Overvoltage
Protection
Functions
Input Voltage
Output
Range
Current
(V)
(A)
Max.
Operating
Temperature
Range
(゚C)
Package
BD90540EFV-C
1
Pch (90mΩ)
Nch (60mΩ)
7
4.0
2.6
5.5
Variable (0.6-5.0)
±1.5
0.3~2.4
±15
Current
0.065
✓
✓
✓
✓
✓
SR
SR
✓
-40 ~ 125
HTSSOP-B20
BD90540MUV-C
1
Pch (90mΩ)
Nch (60mΩ)
7
4.0
2.6
5.5
Variable (0.6-5.0)
±1.5
0.3~2.4
±15
Current
0.065
✓
✓
✓
✓
✓
SR
SR
✓
-40 ~ 125
VQFN20SV4040
BD90530EFV-C
1
Pch (90mΩ)
Nch (60mΩ)
7
3.0
2.6
5.5
Variable (0.6-5.0)
±1.5
0.3~2.4
±15
Current
0.065
✓
✓
✓
✓
✓
SR
SR
✓
-40 ~ 125
HTSSOP-B20
BD90530MUV-C
1
Pch (90mΩ)
Nch (60mΩ)
7
3.0
2.6
5.5
Variable (0.6-5.0)
±1.5
0.3~2.4
±15
Current
0.065
✓
✓
✓
✓
✓
SR
SR
✓
-40 ~ 125
VQFN20SV4040
BD90532EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
3.0
2.69
5.5
1.2
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
BD90535EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
3.0
2.69
5.5
1.5
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
BD90538EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
3.0
2.69
5.5
1.8
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
BD90520EFV-C
1
Pch (90mΩ)
Nch (60mΩ)
7
2.0
2.6
5.5
Variable (0.6-5.0)
±1.5
0.3~2.4
±15
Current
0.065
✓
✓
✓
✓
✓
SR
SR
✓
-40 ~ 125
HTSSOP-B20
BD90520MUV-C
1
Pch (90mΩ)
Nch (60mΩ)
7
2.0
2.6
5.5
Variable (0.6-5.0)
±1.5
0.3~2.4
±15
Current
0.065
✓
✓
✓
✓
✓
SR
SR
✓
-40 ~ 125
VQFN20SV4040
BD90522EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
2.0
2.69
5.5
1.2
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
BD90525EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
2.0
2.69
5.5
1.5
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
BD90528EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
2.0
2.69
5.5
1.8
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
BD90571EFJ-C
1
Pch (85mΩ)
Nch (70mΩ)
7
1.0
2.69
5.5
1.2
(±2.0)
2.25
±20
Current
0.65
-
-
-
✓
✓
SR
SR
✓
-40 ~ 125
HTSOP-J8
Under development
HTSOP-J8
Automotive Regulator Selection Guide
※ SR:Self Recovery
HTSSOP-B20
VQFN20SV4040
11
Buck-Boost Switching Regulator Controller (BD9035AEFV-C)
Buck-Boost Automatic Switching Control Solution
for Low Voltage Drive
The BD9035 buck-boost switching controller features high
withstand voltage, a wide input range (VIN=3.8 to 30V), and is
capable of generating buck-boost output using only one inductor.
Boost-buck automatic switching control improves efficiency over
conventional REGSPIC switching regulators. In addition, high switching
frequency accuracy (±7%) is achieved throughout the entire operating
temperature range (Ta=-40゚C to +125゚C).
EN
EN
VREG3
VREG3
0.47µF
33
kΩ
VOUT
2.2
100
680pF
kΩ
pF
82
330Ω kΩ
0.015µF
Buck-boost output possible with only one inductor
Automatic Boost/Boost-Buck/Buck switching improves efficiency
 3-mode automatic switching control
High accuracy oscillation frequency and built-in PLL external
synchronization function simplify noise countermeasures
 High switching frequency accuracy: ±7% (-40゚C to +125゚C)
 PLL enables a wide external synchronous frequency range:
100k to 600kHz
 Input voltage range: 3.8V to 30V (40V rating)
 Oscillation frequency range: 100k to 600kHz
 Two-stage overcurrent protection through one external resistor
 Output undervoltage/overvoltage protection and Power Good
CL
CL
CLKOUT
CLKOUT
OUTH
OUTH
SYNC
SYNC
RT
RT
VL
VL
BD9035AEFV-C
OUTH
降圧モード
Buck
OUTL
10µH
VOUT
100µF
OUTH
COMP
COMP
昇降圧モード
Buck-boost
VREG5
OUTL
VDD
VDD
OUTL
OUTL
PGND
PGND
FB
FB
1µF
OUTH
OVPLVL
OVPLVL
15.6kΩ
BAT
220µF
40mΩ//3
15.6kΩ
82kΩ
2.2µF
0.1µF
VCCCL
VCCCL
VREG5
VREG5
0.47µF
VOUT
Product Overview: BD9035AEFV-C
VCC
VCC
SS
TEST
TEST
SS
VREG3
GND
GND
昇圧モード
Boost
47kΩ
PGOOD
PGOOD
OUTL
0.47µF
External MOS Gate Waveforms for
Each Mode
BD9035AEFV-C Application Circuit
Buck DC/DC
BD9035AEFV-C
Efficiency [%]
Input Voltage
BD9035AEFV
Conventional Control
Output
Automatic control improves efficiency
during buck operation
The buck-boost system maintains the output voltage even
when the Input Voltage < Output Voltage
Output Current [A]
BD9035AEFV-C Efficiency vs Load Current
VIN=12V , VOUT=6V , f=350kHz
HTSSOP-B24
BD9035AEFV-C Input vs Output Voltage
VIN=10V , VOUT=8V , f=350kHz
BD9035AEFV-C
Number
of
Channels
1
Output Control Method
Pch
Controller
Nch
Controller
Push-Pull
Push-Pull
40
-
Min.
Max.
3.8
30
Output Voltage
(V)
Typ.
Variable
±1.5
Switching
Frequency
Range
(kHz)
100 ~ 600
Operating
Circuit
Control
Current
Mode
(mA)
Typ.
Accuracy
(%)
±7
Voltage
7
Power Good
Part No.
Reference
(Output)
Voltage
Accuracy
(%)
✓
External
Synchronization
Variable
Soft Start
Synchronous
Rectification
Simple Light
Load Mode
Over Current
Protection
Thermal
Shutdown
Overvoltage
Protection
Functions
Input Voltage
Maximum Output
Range
Input
Current
(V)
Voltage
(A)
(V)
Max.
✓
✓
-
-
SR
SR
✓
Operating
Temperature
Range
(゚C)
Package
-40 ~ 125
HTSSOP-B24
※ SR:Self Recovery
Automotive Regulator Selection Guide
12
Automotive Step-Down Linear Regulator Lineup
Primary 【Linear】
1.5
BDxxHC5MEFJ-M
Secondary 【Linear】
Rated Voltage
Rated Voltage
BDxxGC0MEFJ-M
BDxxHC0MEFJ-M
BDxxIC0MEFJ-M
1.0
4.0 or Vo+1
4.0 or Vo+1
BD90C0AWFP/FP/WHFP/HFP/WFP2/FP2-C
BD80C0AWFP / FP / WHFP / HFP / WFP2 / FP2-C
BD50C0AWFP / FP / WHFP / HFP / WFP2 / FP2-C
BD33C0AWFP / FP / WHFP / HFP / WFP2 / FP2-C
BD00C0AWFP / FP / WHFP / HFP / WFP2 / FP2-C
.
BD00C0AWFPS-M
.
Output Current (A)
BDxxGA5MEFJ-M
BDxxHA5MEFJ-M
BDxxIA5MEFJ-M
BD3570 / 73YHFP-M , BD3572 / 75YFP / YHFP-M
BD3571 / 74YHFP-M
BD733L5FP-C
BD750L5FP-C
BD433M5WFPJ / WFP2 / FP / FP2-C
BD450M5WFPJ / WFP2 / FP / FP2-C
BD3020 / 21HFP-M
BD4275FP2 / FPJ-C
0.5
BDxxGA3MEFJ-M / -C
BDxxHA3MEFJ-M / -C
0.3
BD3650FP-M
BD4275FP2 / FPJ-C
BD433M5WFPJ / WFP2 / FP / FP2-C
BD450M5WFPJ / WFP2 / FP / FP2-C
0.25
BUxxSD2MG-M
BD733L2EFJ / FP / FP3-C
BD750L2EFJ / FP / FP3-C
BD433M2WEFJ / WFP / EFJ / FP3-C
BD450M2WEFJ / WFP / EFJ / FP3-C
BD3010AFV-M
BD4269FJ-C
0.2
BD433M2WEFJ / WFP / EFJ / FP3-C
BD450M2WEFJ / WFP / EFJ / FP3-C
0.1
1.7 2.4 2.6 2.69 3.5 3.6 3.8 3.9 4.0 4.17 4.3 4.37 4.5 4.6 5.0 5.5 5.6 5.8 5.9 6.0 7.0 8.0 9.0 10
14
15
24
26.5
30
33
35
36
40
42
45
50
Input Rail Voltage (V)
Automotive Regulator Selection Guide
13
Automotive Linear Regulator Product Family
Input
Primary
Secondary
Maximum
Current
to 0.5A
1A MAX
Function
Single Function
Multi Function
Circuit
Current
Ultra Low
6µA (Typ.)
Low
Above 30µA
Rated
Voltage
45V Max.
BD733L5(3.3V)FP-C
BD750L5(5.0V)FP-C
50VMAX,0.5A
BD733L2(3.3V)
BD750L2(5V)
EFJ/FP/FP3-C
50VMAX, 0.2A
Rated
Voltage
50V Max.
15V Max.
BD433M5(3.3V)
BD450M5(5V)
WFPJ/WFP2/FP/
FP2-C
BD3570Y(3.3V)
BD3571Y(5V)HFP-M
BD3572Y(Variable)
FP/HFP-M
BD3020/21HFP-M
45VMAX, 0.5A
50VMAX, 0.5A
without Switch
BD3010AFV-M
BD433M2(3.3V)
BD450M2(5V)
WEFJ/WFP3/EFJ/
FP3-C
45VMAX, 0.2A
BD3573Y(3.3V)
BD3574Y(5V)HFP-M
BD3575Y(Variable)
FP/HFP-M
50VMAX, 0.5A
with Switch
50VMAX, 0.5A LDO
with Voltage Detector and
Watchdog Timer
50VMAX, 0.2A LDO
with Voltage Detector and
Watchdog Timer
BD4275FP2/FPJ-C
45VMAX, 0.5A LDO
with Voltage Detector
BD90C0A(9V)
BD80C0A(8V)
BD50C0A(5V)
BD33C0A(3.3V)
BD00C0A(Variable)
WFP/FP/WHFP/
HFP/WFP2/FP2-C
Up to 10V
Max.
BDxxGC0MEFJ
BDxxGA5MEFJ
BDxxGA3MEFJ
-M/-C
BDxxHC5MEFJ
BDxxHC0MEFJ
BDxxHA5MEFJ
BDxxHA3MEFJ-M/-C
15VMAX, 0.3/0.5/1.0A
10VMAX, 0.3/0.5/1.0/1.5A
BDxxIC0MEFJ
BDxxIA5MEFJ-M/-C
26.5VMAX, 1.0A
7VMAX, 0.5/1.0A
BD00C0AWFPS-M
BUxxSD2MG-M
26.5VMAX, 1.0A
6.5VMAX, 0.2A
BD4269FJ-C
45VMAX, 0.2A LDO
with Voltage Detector
P15,16
P16
P17
Primary Linear Regulators
Automotive Regulator Selection Guide
P17
P18
P21,22
P21,22
Secondary Linear Regulators
14
Primary Linear Regulators (BD7xxLxxxx-C Series)
Low Quiescent Current Solutions
The BD7xxLxxxx-C series of low quiescent current regulators features a rated voltage of 50V,
200/500mA output current, an output voltage accuracy of ±2%, and current consumption of
only 6μA (Typ.).
There regulators are therefore ideal for applications requiring a direct connection to the battery
and a low current consumption. Ceramic capacitors can be used for compensation of the
output capacitor phase.
Furthermore, these ICs also feature overcurrent protection to protect the device from damage
caused by short-circuiting and an integrated thermal shutdown to protect the device from
Overheating at overload conditions.
Battery
BD733L5FP-C
BD750L2FP-C
BD750L2EFJ-C
BD750L2FP3-C
BD750L5FP-C
3.3V, 0.2A
VCC
MCU, CAN
BD7xxLxxxx-C Application Circuit
3.3V, 0.5A
5V, 0.2A
5V, 0.5A
MCU, CAN
90
MCU, CAN
30μA
MCU, CAN
 Ultra-low quiescent current: 6µA (Typ.)
 Output transistor
: Low saturation Pch DMOS (3Ω Typ.)
 VCC maximum voltage : 50V
 Output current
: 200mA (Max.) / 500mA (Max.)
 Output voltage
: 3.3V±2% / 5.0V±2%
 Enables low ESR ceramic capacitors to be used for output phase compensation
 Integrated output current control circuit protects the IC against damage due to short circuits
 Built-in thermal shutdown prevents IC overheating due to overload conditions.
HTSOPJ-8
BD733L2EFJ-C
BD750L2EFJ-C
Automotive Regulator Selection Guide
4.7µF or higher
*the capacitance of 4.7μF
or higher is maintained
at the intended applied
voltage and temperature
range.
GND
BD357x: 80μA(Typ.)
@Io=100mA
Quiescent current
reduced 80%
(@Io=0mA)
60
Product Overview: BD7xxLxxxx-C
TO252-3
BD733L2FP-C
BD733L5FP-C
BD750L2FP-C
BD750L5FP-C
VOUT
Iq [µA]
12V
BD733L2FP-C
BD733L2EFJ-C
BD733L2FP3-C
BD7xxLxxxx-C
6μA
Conventional
Under
Development
(BD357xY)
(BD7xxLx)
Quiescent current
reduced 92%
(@Io=100mA)
30
BD7xxLx:
6μA (Typ.)
@Io=100mA
0
0
50
Io [mA]
100
BD7xxLxxxx-C Quiescent Current Comparison
SOT223-4
BD733L2FP3-C
BD750L2FP3-C
※Under development
15
Primary Linear Regulator Selection Guide
Output
Voltage
Accuracy
(%)
Dropout Voltage
(V)
Typ.
Circuit
Current
(µA)
Typ.
Others
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
HTSOP-J8
-
-
-
-
-
-
-
SOT223-4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
HTSOP-J8
-
-
-
-
-
-
-
SOT223-4
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
HTSOP-J8
-
-
-
-
-
-
-
SOT223-4
Internal
-
-
-
-
-
-
HTSOP-J8
Internal
-
-
-
-
-
-
SOT223-4
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
TO263-3
Internal
-
-
-
-
-
-
TO263-5
Internal
-
-
-
-
-
-
TO252-J5
-
-
-
-
-
-
-
HTSOP-J8
-
-
-
-
-
-
-
SOT223-4
Internal
-
-
-
-
-
-
HTSOP-J8
Internal
-
-
-
-
-
-
SOT223-4
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
TO263-3
Internal
-
-
-
-
-
-
TO263-5
Internal
-
-
-
-
-
-
TO252-J5
Max.
BD733L2FP-C
BD733L2EFJ-C
Shutdown
Switch
WDT
(Switchable)
Output
Current
(A)
Max.
WDT
Min.
Output Voltage
(V)
Typ.
Detection
Accuracy (%)
Rated
Voltage
(V)
4.5V
Detection Voltage
Part No.
Variable
Detection Voltage
Functions
Input Voltage
Range
(V)
4.37
0.20
[email protected]
Operating
Temperature
Range
(゚C)
Package
3.3
BD733L2FP3-C
BD733L5FP-C
4.17
50
0.50
45
±2
[email protected]
6
BD750L2FP-C
BD750L2EFJ-C
5.8
0.20
[email protected]
TO252-3
-40~[email protected]
5.0
BD750L2FP3-C
BD750L5FP-C
5.6
BD433M2EFJ-C
0.50
4.3
@0.20A
/
3.9
@0.10A
BD433M2FP3-C
BD433M2WEFJ-C
BD433M2WFP3-C
[email protected]
0.20
[email protected]
40
3.3
BD433M5FP-C
4.6
@0.50A
/
4.0
@0.25A
BD433M5FP2-C
BD433M5WFP2-C
BD433M5WFPJ-C
45
BD450M2EFJ-C
BD450M2FP3-C
BD450M2WEFJ-C
BD450M2WFP3-C
0.50
[email protected]
38
±2
42
5.8
@0.20A
/
5.5
@0.10A
0.20
-40~[email protected]
[email protected]
40
5.0
BD450M5FP-C
BD450M5FP2-C
BD450M5WFP2-C
BD450M5WFPJ-C
5.9
@0.50A
/
5.5
@0.25A
0.50
[email protected]
38
Under development
Automotive Regulator Selection Guide
16
Primary Linear Regulator Selection Guide
Functions
Variable
Detection Voltage
4.5V
Detection Voltage
Detection
Accuracy (%)
WDT
WDT
(Switchable)
Input Voltage
Range
(V)
BD3572YFP-M
4.5
Variable (2.8-12.0)
[email protected]
-
-
-
-
-
-
-
BD3575YFP-M
4.5
Variable (2.8-12.0)
[email protected]
Internal
-
-
-
-
-
-
BD3570YHFP-M
4.5
3.3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
✓
-
±2
✓
-
-
✓
±2
-
✓
✓
4.62
V
-2.6
/
+2.8
-
-
±2.6
-
Part No.
Rated
Voltage
(V)
Min.
Output Voltage
(V)
Typ.
Output
Current
(A)
Max.
Output
Voltage
Accuracy
(%)
Dropout Voltage
(V)
Typ.
Circuit
Current
(µA)
Typ.
Shutdown
Switch
Others
Max.
Operating
Temperature
Range
(゚C)
Package
TO252-5
BD3571YHFP-M
5.5
50
5.0
36
0.50
BD3572YHFP-M
4.5
Variable (2.8-12.0)
BD3573YHFP-M
4.5
3.3
BD3574YHFP-M
5.5
5.0
±2
[email protected]
30
-40~[email protected]
HRP5
Internal
[email protected]
BD3575YHFP-M
BD3650FP-M
4.5
Variable (2.8-12.0)
36
5.6
30
5.0
0.30
±2
[email protected]
500
-
-
50
5.6
36
5.0
0.50
±2
[email protected]
80
-
-
BD3020HFP-M
BD3021HFP-M
BD3010AFV-M
50
6.0
45
[email protected]
/
[email protected]
45
5.5
45
BD4275FP2-C
BD4275FPJ-C
BD4269FJ-C
45
Automotive Regulator Selection Guide
36
5.0
5.0
5.0
0.20
0.50
0.20
±2
±2
±2
[email protected]
[email protected]
[email protected]
80
65
70
-
-
-
-
✓
-
✓
±3
-40~[email protected]
HRP7
-40~[email protected]
HRP7
✓
-40~[email protected]
-
-40~[email protected]
-40~[email protected]
-
TO252-3
-40~[email protected]
-40~[email protected]
SSOP-B20
TO263-5
TO252-J5
SOP-J8
17
Functions
Output Voltage
(V)
Typ.
Output
Current
(A)
Max.
Output
Voltage
Accuracy
(%)
Dropout Voltage
(V)
Typ.
Circuit
Current
(µA)
Typ.
Shutdown
Switch
Others
Variable
Detection Voltage
4.5V
Detection Voltage
Detection
Accuracy (%)
WDT
WDT
(Switchable)
Input Voltage
Range
(V)
Variable (3.0-15.0)
1.00
±3
0.30
@0.50A
Vo ≥ 5.0
500
Internal
-
-
-
-
-
-
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
TO263-3
BD33C0AHFP-C
-
-
-
-
-
-
-
HRP5
BD50C0AFP-C
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
TO263-3
-
-
-
-
-
-
-
HRP5
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
TO263-3
BD80C0AHFP-C
-
-
-
-
-
-
-
HRP5
BD90C0AFP-C
-
-
-
-
-
-
-
TO252-3
-
-
-
-
-
-
-
TO263-3
-
-
-
-
-
-
-
HRP5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
HRP5
-
-
-
-
-
-
TO252-5
Part No.
BD00C0AWFPS-M
Rated
Voltage
(V)
35
Min.
Max.
4.0 or
Vo+1.0
26.5
BD33C0AFP-C
BD33C0AFP2-C
4.3
BD50C0AFP2-C
3.3
6.0
-
5.0
BD50C0AHFP-C
BD80C0AFP-C
BD80C0AFP2-C
9.0
BD90C0AFP2-C
0.30
@0.50A
8.0
10.0
9.0
BD90C0AHFP-C
BD00C0AWFP-C
BD00C0AWFP2-C
BD00C0AWHFP-C
35
4.0
or
Vo+1.0
26.5
Variable (1.0-15.0)
1.00
±3
[email protected]
Vo ≥ 5.0
500
BD33C0AWFP-C
BD33C0AWFP2-C
-
-40~[email protected]
TO252S-5
TO252-5
-40~[email protected]
TO263-5
-
-
-
-
-
-
TO263-5
-
-
-
-
-
-
HRP5
BD50C0AWFP-C
-
-
-
-
-
-
TO252-5
-
-
-
-
-
-
TO263-5
-
-
-
-
-
-
HRP5
-
-
-
-
-
-
TO252-5
-
-
-
-
-
-
TO263-5
BD80C0AWHFP-C
-
-
-
-
-
-
HRP5
BD90C0AWFP-C
-
-
-
-
-
-
TO252-5
-
-
-
-
-
-
TO263-5
-
-
-
-
-
-
HRP5
6.0
3.3
Package
BD33C0AWHFP-C
BD50C0AWFP2-C
4.3
Operating
Temperature
Range
(゚C)
5.0
Internal
BD50C0AWHFP-C
BD80C0AWFP-C
BD80C0AWFP2-C
BD90C0AWFP2-C
9.0
10.0
BD90C0AWHFP-C
Automotive Regulator Selection Guide
8.0
9.0
[email protected]
18
Primary Linear Regulator Selection Guide
TO252-3
TO252-5
TO252S-5
TO263-3
TO263-5
SOT223-4
Automotive Regulator Selection Guide
TO252-J5
19
HRP5
Automotive Regulator Selection Guide
HRP7
HTSOP-J8
SSOP-B20
20
Secondary Linear Regulator Selection Guide
【BDxxG/H/IxxMEFJ/HFN-M/-C】
【BUxxSD2MG-M】
Absolute Maximum Rating G:15V H:10V I:7V
Absolute Maximum Rating 6.5V
BUxxSD2MG-M
BDxxG/H/IxxMEFJ/HFN
-M/-C
Vcc
Vo
BDxxG/H/IxxMEFJ/HFN
-M/-C
Vcc
Vo
GND
EN
FIN
GND
FIN
STBY
Variable Output Type
Application Circuit
Fixed Output Type
Application Circuit
Part No. Explanation/Overview: BDxxG/H/IxxEEFJ/HFN-M/-C
B
D
0
0
G
Output Voltage
Series
00: ADJ
(ABS max
xx: Fixed
input voltage)
G: 15V
H: 10V
I: 7V
x
x
Output
Current
A3 : 0.3A
A5 : 0.5A
C0 : 1.0A
C5 : 1.5A
M
E
F
J
Package
EFJ: HTSOP-J8
HFN:HSON8
-
M
Automotive
Grade
M: Automotive
 Shutdown circuit current: 0µA (Typ.)
 Output voltage accuracy: -M=±3% (Ta: -40゚C ~ +105゚C)
-C=±2% (Ta: -40゚C ~ +125゚C)
 Internal standby function
 Enables the use of low ESR ceramic capacitors for output phase compensation (1.0µF Min.)
 Integrated output current control circuit protects the IC from damage due to output short circuits
 Built-in thermal shutdown to prevents IC overheating during overload
Automotive Regulator Selection Guide
VOUT
Vo_s
FB
EN
VIN
GND
Application Circuit
Product Overview: BUxxSD2MG-M
 Input Voltage Range: 1.7V to 6.0V (6.5V Rating)
 Low Quiescent Current: 35µA (Typ.)
 Output Current: 200mA (Max.)
 Output Voltage Accuracy: ±2% (Ta: -40゚C to +105゚C)
 Low Output Noise: 30µVrms (10-100kHz)
 High PSRR (Ripple Rejection): 70dB Typ.@1kHz
 Integrated Standby function
 Enables the use of low ESR ceramic capacitors for output phase compensation
(0.47µF Min.)
 Integrated overcurrent protection protects the IC from damage due to output
short circuits
 Built-in thermal shutdown function prevents IC overheating during overload
HTSOPJ-8
HSON8
SSOP5
21
Secondary Linear Regulator Selection Guide
BDxxGC0MEFJ-M
15
4.5
14
BDxxGA5MEFJ-M
15
4.5
14
BDxxGA3MEFJ-M
15
4.5
14
Variable (1.5-13.0)
/ 1.5 / 1.8 / 2.5
/ 3.0 / 3.3 / 5.0
/ 6.0 / 7.0 / 8.0
/ 9.0/10.0/12.0
Variable / 3.3 / 5.0
BDxxGA3MEFJ-C
15
4.5
14
BDxxHC5MEFJ-M
10
4.5
8.0
BDxxHC0MEFJ-M
10
4.5
8.0
BDxxHA5MEFJ-M
10
4.5
8.0
BDxxHA3MEFJ-M
10
4.5
8.0
BDxxHA3MEFJ-C
10
4.5
8.0
BDxxIC0MEFJ-M
7
2.4
5.5
BDxxIA5MEFJ-M
7
2.4
5.5
BUxxSD2MG-M
6.5
1.7
6.0
HTSOP-J8
Automotive Regulator Selection Guide
Variable (1.5-7.0)
/ 1.5 / 1.8/ 2.5
/ 3.0 / 3.3/ 5.0
/ 6.0 / 7.0
Variable (0.8-4.5)
/ 1.0 / 1.2 / 1.5
/ 1.8 / 2.5 / 3.0
/ 3.3
1.2 / 1.5 / 1.8
/ 2.5 / 2.8 / 3.0
/ 3.3
Output
Voltage
Accuracy
(%)
Dropout Voltage
(V)
Typ.
Circuit
Current
(µA)
Typ.
Shutdown
Switch
Others
WDT
(Switchable)
Max.
Output
Current
(A)
Max.
WDT
Min.
Output Voltage
(V)
Typ.
Detection
Accuracy(%)
Maximum
Voltage
(V)
4.5V
Detection Voltage
Part No.
Variable
Detection Voltage
Functions
Input Voltage
Range
(V)
1.00
±3
[email protected]
600
Internal
-
-
-
-
-
-
0.50
±3
[email protected]
600
Internal
-
-
-
-
-
-
0.30
±3
[email protected]
600
Internal
-
-
-
-
-
-
0.30
±2
[email protected]
600
Internal
-
-
-
-
-
-
1.50
±3
[email protected]
600
Internal
-
-
-
-
-
-
1.00
±3
[email protected]
600
Internal
-
-
-
-
-
-
0.50
±3
[email protected]
600
Internal
-
-
-
-
-
-
0.30
±3
[email protected]
600
Internal
-
-
-
-
-
0.30
±2
[email protected]
600
Internal
-
-
-
-
-
-
1.00
±3
[email protected]
250
Internal
-
-
-
-
-
-
Operating
Temperature
Range
(゚C)
Package
HTSOP-J8
-40~[email protected]
HTSOP-J8
HTSOP-J8
-40~[email protected]
HTSOP-J8
HTSOP-J8
HTSOP-J8
-40~[email protected]
HTSOP-J8
HTSOP-J8
-40~[email protected]
HTSOP-J8
HTSOP-J8
-40~[email protected]
0.50
±3
[email protected]
250
Internal
-
-
-
-
-
-
0.20
±2
0.28 / 0.18 / 0.15
/ 0.10 / 0.085
@0.10A
33
Internal
-
-
-
-
-
-
HTSOP-J8
-40~[email protected]
SSOP5
SSOP5
22
Leveraging Power Supply IC Characteristics
Thermal Resistance · Characteristics
The following definitions comply with JEDEC Standard JESD51
Symbol
Definition
Applications
θJA
Thermal resistance between junction temperature
(TJ) and ambient temperature (TA) when the
package is mounted on a PCB.
Comparison of heat dissipation
characteristics between different
packages.
Estimation of the junction
temperature.
ΨJT
Thermal characteristics parameter representing
the temperature difference between the junction
temperature (TJ) and the temperature of the center
of the top surface of the package (TT), caused by
the power consumption (P) of the device.
Can be used in simulations using the
2-resistance model.
θJC-TOP
The thermal resistance between the junction
temperature (TJ) and the top surface of the
package (TC-TOP). Heat is dissipated only through
the top surface of the package – all other
pathways are insulated.
θJC-BOT
The thermal resistance between the junction
temperature (TJ) and the bottom surface of the
package (TC-BOT). Heat is dissipated only through
the bottom surface of the package – all other
pathways are insulated.
Used to estimate the junction
temperature for packages where
metal is exposed at the bottom for
heat dissipation, since the majority of
heat is dissipated through the bottom.
Formula
θJA = (TJ – TA) / P
ΨJT = (TJ – TT) / P
θJC-TOP = (TJ – TC-TOP) / P
θJC-BOT = (TJ – TC-BOT) / P
Note 1: θJA and ΨJT are obtained when mounted on a JEDEC board.
Note 2: Data provided as θJC conventionally is ΨJT in this definition.
Automotive Regulator Selection Guide
23
Thermal Resistance · Characteristics
Cf. JEDEC(JESD51)
●θJA: Thermal resistance from the junction to the ambient environment (Heat conduction and radiation through multiple pathways)
●ψJT:Thermal characteristics parameter from the junction to the center of the top surface of the package
(Heat conduction not only through the top surface, but also any surface)
Temperature at the center of the top of the package: TT
Ambient Temperature:TA
Top Surface of Package
Package (Mold)
θJA
ΨJT
Thermal Conduction
Thermal Resistance (Low)
Thermal Resistance (High)
Heat conduction and radiation to the air
Junction Temperature:TJ
Junction
Chip
Package (Lead)
Package (Island)
Copper Layers
PCB (FR4)
Bottom Surface of Package
※Image: HTSOP-J8 package
●θJC-TOP: Thermal resistance from the junction to the top
surface of the package. (Heat radiated only through top of
package. Other pathways insulated)
Cold Plate
Temperature at the top of
package:TC-TOP
Junction Temperature:TJ
Automotive Regulator Selection Guide
●θJC-BOT: Thermal resistance from the junction to the bottom
surface of the package. (Heat radiated only through the bottom of
package. Other pathways insulated.)
Junction Temperature:TJ
Thermal Resistance:
θJC-TOP
Temperature at the bottom of
package: TC-BOT
Thermal Resistance
:θJC-BOT
Cold Plate
24
Leveraging Power Supply IC Characteristics
Noise Characteristics · Tolerance
It is important that electronic devices: 1) Do not interfere
with other devices, and 2) Are able to maintain normal
performance even when receiving interference.
The need to balance both of these requirements gives rise
to the term Electromagnetic Compatibility, which can be
broken down into 2 components – EMI and EMS.
EMI Standard
CISPR25
Automotive
Equipment Test
VDD
Conductive Noise
Radiant
Noise
(In the air)
Signal
×
EMI Standard
ISO11452
Automotive
Equipment Test
Conductive Noise
Operating the target IC may cause noise to be generated,
which can lead to operation stoppage due to system and/or
peripheral circuit malfunction.
To prevent this, delicate, complex circuit design is necessary.
VSS
System A
Conversely, peripheral IC and/or system operation may
generate noise which can interfere with the target IC and
lead to malfunction and cause operation to fail.
In this case robust circuit design is required.
EMI Standard
CISPR25
Automotive
Equipment Test
Conductive Noise
System B
Radiant
Noise
(In the air)
Conducive Noise
×
EMI Standard
ISO11452
Automotive
Equipment Test
Harness, etc.
Radiant Noise
Automotive Regulator Selection Guide
25
PCB Design Checkpoints
Possible Concerns Regarding Improper DC/DC PCB Layout
Notes on Thermal Relief
Please consider capacitor layout to minimize noise.
Slit
Recommendations on PCB Design
1. Power lines should be as short and wide as possible.
2. Please place the input decoupling (ceramic) capacitor as close as
possible to the IC power supply-GND pin. (GND side of the IC power
supply-SBD for chopper types) ⇒ Shortest AC current path
3. The resistor RT for determining the oscillating frequency should be
located near to the GND pin (reference GND).
4. Position the feedback resistor for variable output voltage types as close
to the feedback pin, shortening the wiring from the feedback resistor to
the feedback terminal.
5. The feedback resistor should be located far from noise sources such as
inductors and switching lines. It is good practice for dual-sided boards to
place power components on the same side as the IC and the rest of the
components on the other side. (When doing so, please do not pass the
feedback line under the inductor.)
6. Separating power GND (SBD, input/output capacitor GND) and
reference GND (RT, GND) will minimize the effects of switching noise.
However, please make them common through a GND plane.
7. Do not use thermal relief whenever possible.
⇒ Deteriorating high frequency characteristics
Automotive Regulator Selection Guide
Slit
ESL
Via
In the above layout since the ESL component of the PCB is added, the
resonant frequency from the formula on Page 28 moves to the low
frequency side. As a result, it may not be possible to achieve the
desired noise removal effects.
ESL (PCB)
Ideal
ESL (Via)
Ideal Layout
Actual
26
Leveraging Power Supply IC Characteristics
Conductive Noise Countermeasure Example
AM Band
ESR=0.16Ω/DCR=0.33Ω
CB~FM Band
AM Band
CB~FM Band
Refer to SimSurfing of MURATA
415kHz
From the attenuation characteristics of the low pass
filter, an attenuation of about 60dB is expected at a
switching frequency of 415kHz (harmonics as well)
Attenuation characteristics
as seen from the DUT side
of the low pass filter
Impedance of the 0.1µF
/50v bypass capacitor
Adding a 0.1µF decoupling capacitor decreases
impedance between 10M and 100MHz
MURATA様 SimSurfingより
Adding a 2200pF decoupling capacitor decreases
impedance between 100M and 200MHz.
Clears CISPR25 Class5 in all bands
Impedance of Bypass
Capacitor 2200pF /50v
Automotive Regulator Selection Guide
27
Appendix : Waveform Data Acquisition Techniques
[email protected]
2.0µs/div
400ns/div
20ns/div
400ns/div
20ns/div
GND
The waveforms at the top were obtained
using a GND lead attached to a probe.
The waveforms below were taken by
measuring the output ripple voltage
using a tin plated wire wound to GND in
a short distance.
Although at 2.0µs/div there does not
appear to be a large difference, upon
magnification spikes can be seen.
These spikes are largely due to the
resonance of the inductance of the GND
lead and capacitance of the probe input.
[email protected]
2.0µs/div
1
Resonant Frequency =
2*π√(Lg * Cp)
Cp
10MΩ
Lg:Probe Ground Lead Inductance
Cp:Probe Input Capacitance
Lg
Object to Be Measured
Automotive Regulator Selection Guide
Probe Equivalent Circuit
In order to prevent such resonance,
optimized probing must be conducted
where Cp and Lg in the equivalent circuit
is as small as possible.
Since the input capacitance of a
standard passive probe is limited to
around 10pF, it is clear that reducing the
GND lead inductance Lg (nH/mm) will
lead to improved measurement accuracy.
In order to further improve accuracy use
of an active probe (FET probe) is
recommended.
28
INDEX
Part No.
Page No.
Part No.
Page No.
Part No.
Page No.
Part No.
Page No.
Part No.
Page No.
●BD00C0AWFP-C
13,14,18
○BD25GC0MEFJ-M
13,14,21,22
●BD3572HFP-M
13,14,17
○BD60GA5MEFJ-M
13,14,21,22
◇BD90538EFJ-C
3,4,9,10,11
●BD00C0AWFP2-C
13,14,18
○BD25HA3MEFJ-C
13,14,21,22
●BD3573HFP-M
13,14,17
○BD60GC0MEFJ-M
13,14,21,22
◇BD90540EFV-C
3,4,9,10,11
●BD00C0AWFPS-M
13,14,18
○BD25HA3MEFJ-M
13,14,21,22
●BD3574HFP-M
13,14,17
○BD60HA3MEFJ-C
13,14,21,22
◇BD90540MUV-C
3,4,9,10,11
●BD00C0AWHFP-C
13,14,18
○BD25HA5MEFJ-M
13,14,21,22
●BD3575FP-M
13,14,17
○BD60HA3MEFJ-M
13,14,21,22
◇BD90571EFJ-C
3,4,9,10,11
○BD00GA3MEFJ-C
13,14,21,22
○BD25HC0MEFJ-M
13,14,21,22
●BD3575HFP-M
13,14,17
○BD60HA5MEFJ-M
13,14,21,22
◆BD9060F-C
○BD00GA3MEFJ-M
13,14,21,22
○BD25HC5MEFJ-M
13,14,21,22
●BD3650FP-M
13,14,17
○BD60HC0MEFJ-M
13,14,21,22
◆BD9060HFP-C
○BD00GA5MEFJ-M
13,14,21,22
○BD25IA5MEFJ-M
13,14,21,22
●BD4269FJ-C
13,14,17
○BD60HC5MEFJ-M
13,14,21,22
◆BD90610EFJ-C
3,4,7,8
○BD00GC0MEFJ-M
13,14,21,22
○BD25IC0MEFJ-M
13,14,21,22
●BD4275FP2-C
13,14,17
○BD70GA3MEFJ-M
13,14,21,22
◆BD90620EFJ-C
3,4,7,8
○BD00HA3MEFJ-C
13,14,21,22
●BD3010AFV-M
13,14,17
●BD4275FPJ-C
13,14,17
○BD70GA5MEFJ-M
13,14,21,22
◆BD90640EFJ-C
3,4,7,8
○BD00HA3MEFJ-M
13,14,21,22
●BD3020HFP-M
13,14,17
●BD433M2FP-C
13,14,16
○BD70GC0MEFJ-M
13,14,21,22
◆BD90640HFP-C
3,4,7,8
○BD00HA5MEFJ-M
13,14,21,22
●BD3021HFP-M
13,14,17
●BD433M2FP2-C
13,14,16
○BD70HA3MEFJ-C
13,14,21,22
◆BD90730NUX-C
○BD00HC0MEFJ-M
13,14,21,22
○BD30GA3MEFJ-M
13,14,21,22
●BD433M2WFP2-C
13,14,16
○BD70HA3MEFJ-M
13,14,21,22
●BD90C0AFP-C
13,14,18
○BD00HC5MEFJ-M
13,14,21,22
○BD30GA5MEFJ-M
13,14,21,22
●BD433M2WFPJ-C
13,14,16
○BD70HA5MEFJ-M
13,14,21,22
●BD90C0AFP2-C
13,14,18
○BD00IA5MEFJ-M
13,14,21,22
○BD30GC0MEFJ-M
13,14,21,22
●BD433M5EFJ-C
13,14,16
○BD70HC0MEFJ-M
13,14,21,22
●BD90C0AHFP-C
13,14,18
○BD00IC0MEFJ-M
13,14,21,22
○BD30HA3MEFJ-C
13,14,21,22
●BD433M5FP3-C
13,14,16
○BD70HC5MEFJ-M
13,14,21,22
●BD90C0AWFP-C
13,14,18
○BD10IA5MEFJ-M
13,14,21,22
○BD30HA3MEFJ-M
13,14,21,22
●BD433M5WEFJ-C
13,14,16
●BD733L2FP-C
13,14,15,16
●BD90C0AWFP2-C
13,14,18
○BD10IC0MEFJ-M
13,14,21,22
○BD30HA5MEFJ-M
13,14,21,22
●BD433M5WFP3-C
13,14,16
●BD733L2EFJ-C
13,14,15,16
●BD90C0AWHFP-C
13,14,18
○BD12IA5MEFJ-M
13,14,21,22
○BD30HC0MEFJ-M
13,14,21,22
●BD450M2FP-C
13,14,16
●BD733L2FP3-C
13,14,15,16
◆BD99010EFV-M
3,4,5,6,8
○BD12IC0MEFJ-M
13,14,21,22
○BD30HC5MEFJ-M
13,14,21,22
●BD450M2FP2-C
13,14,16
●BD733L5FP-C
13,14,15,16
◆BD99011EFV-M
3,4,5,6,8
○BD15GA3MEFJ-M
13,14,21,22
○BD30IA5MEFJ-M
13,14,21,22
●BD450M2WFP2-C
13,14,16
●BD750L2FP-C
13,14,15,16
○BU12SD2MG-M
13,14,21,22
○BD15GA5MEFJ-M
13,14,21,22
○BD30IC0MEFJ-M
13,14,21,22
●BD450M2WFPJ-C
13,14,16
●BD750L2EFJ-C
13,14,15,16
○BU15SD2MG-M
13,14,21,22
○BD15GC0MEFJ-M
13,14,21,22
●BD33C0AFP-C
13,14,18
●BD450M5EFJ-C
13,14,16
●BD750L2FP3-C
13,14,15,16
○BU18SD2MG-M
13,14,21,22
○BD15HA3MEFJ-C
13,14,21,22
●BD33C0AFP2-C
13,14,18
●BD450M5FP3-C
13,14,16
●BD750L5FP-C
13,14,15,16
○BU25SD2MG-M
13,14,21,22
○BD15HA3MEFJ-M
13,14,21,22
●BD33C0AHFP-C
13,14,18
●BD450M5WEFJ-C
13,14,16
●BD80C0AFP-C
13,14,18
○BU28SD2MG-M
13,14,21,22
○BD15HA5MEFJ-M
13,14,21,22
●BD33C0AWFP-C
13,14,18
●BD450M5WFP3-C
13,14,16
●BD80C0AFP2-C
13,14,18
○BU30SD2MG-M
13,14,21,22
○BD15HC0MEFJ-M
13,14,21,22
●BD33C0AWFP2-C
13,14,18
●BD50C0AFP-C
13,14,18
●BD80C0AHFP-C
13,14,18
○BU33SD2MG-M
13,14,21,22
○BD15HC5MEFJ-M
13,14,21,22
●BD33C0AWHFP-C
13,14,18
●BD50C0AFP2-C
13,14,18
●BD80C0AWFP-C
13,14,18
○BD15IA5MEFJ-M
13,14,21,22
○BD33GA3MEFJ-C
13,14,21,22
●BD50C0AHFP-C
13,14,18
●BD80C0AWFP2-C
13,14,18
○BD15IC0MEFJ-M
13,14,21,22
○BD33GA3MEFJ-M
13,14,21,22
●BD50C0AWFP-C
13,14,18
●BD80C0AWHFP-C
13,14,18
○BD18GA3MEFJ-M
13,14,21,22
○BD33GA5MEFJ-M
13,14,21,22
●BD50C0AWFP2-C
13,14,18
◆BD9015KV-M
○BD18GA5MEFJ-M
13,14,21,22
○BD33GC0MEFJ-M
13,14,21,22
●BD50C0AWHFP-C
13,14,18
◆BD9016KV-M
○BD18GC0MEFJ-M
13,14,21,22
○BD33HA3MEFJ-C
13,14,21,22
○BD50GA3MEFJ-C
13,14,21,22
◆BD9035AEFV-C
3,4,12
○BD18HA3MEFJ-C
13,14,21,22
○BD33HA3MEFJ-M
13,14,21,22
○BD50GA3MEFJ-M
13,14,21,22
◇BD90520EFV-C
3,4,9,10,11
○BD18HA3MEFJ-M
13,14,21,22
○BD33HA5MEFJ-M
13,14,21,22
○BD50GA5MEFJ-M
13,14,21,22
◇BD90522EFJ-C
3,4,9,10,11
○BD18HA5MEFJ-M
13,14,21,22
○BD33HC0MEFJ-M
13,14,21,22
○BD50GC0MEFJ-M
13,14,21,22
◇BD90525EFJ-C
3,4,9,10,11
○BD18HC0MEFJ-M
13,14,21,22
○BD33HC5MEFJ-M
13,14,21,22
○BD50HA3MEFJ-C
13,14,21,22
◇BD90528EFJ-C
3,4,9,10,11
○BD18HC5MEFJ-M
13,14,21,22
○BD33IA5MEFJ-M
13,14,21,22
○BD50HA3MEFJ-M
13,14,21,22
◇BD90528EFJ-C
3,4,9,10,11
○BD18IA5MEFJ-M
13,14,21,22
○BD33IC0MEFJ-M
13,14,21,22
○BD50HA5MEFJ-M
13,14,21,22
◇BD90530EFV-C
3,4,9,10,11
○BD18IC0MEFJ-M
13,14,21,22
●BD3570HFP-M
13,14,17
○BD50HC0MEFJ-M
13,14,21,22
◇BD90530MUV-C
3,4,9,10,11
○BD25GA3MEFJ-M
13,14,21,22
●BD3571HFP-M
13,14,17
○BD50HC5MEFJ-M
13,14,21,22
◇BD90532EFJ-C
3,4,9,10,11
○BD25GA5MEFJ-M
13,14,21,22
●BD3572FP-M
13,14,17
○BD60GA3MEFJ-M
13,14,21,22
Automotive Regulator Selection Guide
3,4,8
3,4,8
3,4,8
3,4,8
3,4,8
3,4,9,10,11
◇BD90535EFJ-C
◆ Primary Switching ◇ Secondary Switching ● Primary Linear ○ Secondary Linear
29
Automotive Regulator Selection Guide
30
31
AEA57-10-003 ©2015 Mar. ROHM Co., Ltd. All rights reserved.
Automotive Regulator Selection Guide
Application Engineering Div.
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