Automotive ICs

Automotive Switching Regulators (DC-DC Converters)

For general use  |  For automotive

Product Lineup View All Products/Datasheets

An automotive switching regulator (DC-DC converter) is a regulator (stabilized power supply), and can convert input direct current (DC) voltage to the desired direct current (DC) voltage. In an automotive electronic device, a switching regulator takes the role of converting the voltage from a battery or other power source to the voltages required by subsequent systems.
ABLIC's automotive switching regulators are available in both step-down (buck) and step-up (boost) types. They come in compact packages such as 1.6×1.6mm and 2.0×3.0mm, as well as high-withstand voltage products with a 36V input and a 45 V rating. In addition, they offer a wide range of functions, including overcurrent protection, short-circuit protection, thermal shutdown, a spread spectrum clock generation circuit, Power Good, and a STATUS pin.
Moreover, our automotive switching regulators are AEC-Q100 qualified and PPAP (Production Part Approval Process) capable. This ensures high quality and reliability, making them suitable for safety critical components such as EPS motors and traction inverters. We also support customers' automotive application designs through the provision of FIT rate.

Top Picks

S-19914/5 A/B

125°C, 36V input, 1A, spread spectrum clock generation circuit, small 2.0×3.0mm, step-down

S-19954/5

125°C, 5.5V input, 1A, Power Good, ultra-small 1.6×1.6mm, step-down

S-19952/3

125°C, 5.5V input, 600mA, Power Good, ultra-small 1.6×1.6mm, step-down

New Products

S-19990

125°C, 36V input, industry's lowest operation from 3.0V, spread spectrum clock generation circuit, step-up/flyback, small 2.0×3.0mm

S-19980

125°C, 36V input, industry's lowest operation from 3.0V, step-up/flyback, small 2.0×3.0mm

S-19999

125°C, 36V input, industry's lowest operation from 3.0V, spread spectrum clock generation circuit, start-stop, step-up, small 2.0×3.0mm

S-19989

125°C, 36V input, industry's lowest operation from 3.0V, start-stop, step-up, small 2.0×3.0mm

Featured Applications

EPS Motors

Offers DC-DC with the industry's smallest package, contributing to the reduction and miniaturization of external parts, and others.

Traction Inverters

Offers the isolated flyback controller that supplies power to gate drivers, and others.

Auxiliary Motors in 48V MHEV

Offers primary DC-DC with a built-in spread spectrum clock generation circuit for low EMI, and others.

Automotive Cameras

Offers DC-DC with the industry's smallest package, contributing to the reduction and miniaturization of external parts, and others.

Related Content

What is Functional Safety?

What is a Switching Regulator?

Operating principle of a switching regulator

Introduction of Automotive Power Management ICs

Product Lineup

  • Linear Regulators (LDO Regulators) (125°C)
  • Linear Regulators (LDO Regulators) (105°C)
  • Voltage Trackers (125°C)
  • Voltage Detectors (Battery Monitoring & Reset ICs) (150°C)
  • Voltage Detectors (Battery Monitoring & Reset ICs) (125°C)
  • Voltage Detectors (Battery Monitoring & Reset ICs) (105°C)
  • Watchdog Timers
  • Switching Regulators (DC-DC Converters)
  • Connection Diagnosis ICs
  • Lithium-ion Battery Protection ICs / EDLC Protection ICs

Switching Regulators (DC-DC Converters) (125°C)

[Step-down]

10V 20V 30V 40V
  • IOUT (mA)
    Product       / VIN (V)
    VOUT (V)
    Freq. (kHz)
  • 1000
    S-19914/5 A/B
    2.5 to 12
    2200
    S-19904/5 A/B
    2.5 to 12
    2200
    S-19944/5 A/B
    1.0 to 12
    2200
    S-19934/5 A/B
    1.0 to 12
    2200
    S-19954/5
    0.8 to 3.3
    2250
  • 600
    S-19912/3 A/B
    2.5 to 12
    2200
    S-19902/3 A/B
    2.5 to 12
    2200
    S-19902/3 C/D
    2.5 to 12
    400
    S-19942/3 A/B
    1.0 to 12
    2200
    S-19932/3 A/B
    1.0 to 12
    2200
    S-19932/3 C/D
    2.5 to 12
    400
    S-19952/3
    0.8 to 3.3
    2250
10V 20V 30V 40V

[Step-up]

10V 20V 30V 40V
  • IOUT (mA)
    Product       / VIN (V)
    VOUT (V)
    Freq. (kHz)
  • –
    S-19980
    –
    400, 2200
    S-19989
    6.8, 8.5
    400, 2200
    S-19990
    –
    400, 2200
    S-19999
    6.8, 8.5
    400, 2200
10V 20V 30V 40V
To circuit examples: Camera module｜Power supply

Selection Table

Please select a subcategory tabs below.

Inquiry
Series NameDatasheetApplication NoteProduct CategoryBuy OnlineFeaturesTypeTransistorControl methodVIN min. [V]VIN max. [V]Absolute maximum rating [V]IOUT [A]VOUT min. [V]VOUT max. [V]Frequency [kHz]Efficiency [%]FunctionOperation temp. min. [°C]Operation temp. max. [°C]Package
Step-down \(Buck\)
Step-up \(Boost\)
Built-in
External
PWM control
PWM\/PFM switching control
2.74
5.536
6.545
0\.6
1\.0
-
0\.8
1\.0
2\.5
6\.8
-
3\.3
8\.5
12\.0
-
400
2200
2250
91
95
-
Current limit
Short-circuit protection
Thermal shutdown
SSCG\*
Power Good
STATUS
-40
125
HSNT-6\(2025\)
HSNT-8\(1616\)B
HSNT-8\(2030\)
HTMSOP-8
S-19902/19903 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 36V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 36.0 45.0 0.6 2.5 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030), HSNT-6(2025)
S-19902/19903 C/D Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 36V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 36.0 45.0 0.6 2.5 12.0 400 95 Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030), HSNT-6(2025)
S-19904/19905 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 36V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 36.0 45.0 1.0 2.5 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030)
S-19912/19913 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER SSCG*, 36V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 36.0 45.0 0.6 2.5 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown, SSCG* -40 125 HTMSOP-8, HSNT-8(2030)
S-19914/19915 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER SSCG*, 36V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 36.0 45.0 1.0 2.5 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown, SSCG* -40 125 HTMSOP-8, HSNT-8(2030)
S-19932/19933 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 18V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 18.0 22.0 0.6 1.0 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030), HSNT-6(2025)
S-19932/19933 C/D Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 18V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 18.0 22.0 0.6 2.5 12.0 400 95 Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030), HSNT-6(2025)
S-19934/19935 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 18V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 18.0 22.0 1.0 1.0 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030)
S-19942/19943 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER SSCG*, 18V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 18.0 22.0 0.6 1.0 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown, SSCG* -40 125 HTMSOP-8, HSNT-8(2030)
S-19944/19945 A/B Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER SSCG*, 18V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 4.0 18.0 22.0 1.0 1.0 12.0 2200 91 Current limit, Short-circuit protection, Thermal shutdown, SSCG* -40 125 HTMSOP-8, HSNT-8(2030)
S-19952/19953 Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 5.5V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 2.7 5.5 6.5 0.6 0.8 3.3 2250 95 Current limit, Short-circuit protection, Thermal shutdown, Power Good -40 125 HTMSOP-8, HSNT-8(1616)B
S-19954/19955 Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER 5.5V input, Small packages Step-down (Buck) Built-in PWM control,
PWM/PFM switching control		 2.7 5.5 6.5 1.0 0.8 3.3 2250 95 Current limit, Short-circuit protection, Thermal shutdown, Power Good -40 125 HTMSOP-8, HSNT-8(1616)B
S-19980 Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER Step-up / Flyback, 36V input, Small packages Step-up (Boost) External PWM/PFM switching control 3.0 36.0 45.0 - - - 2200, 400 - Current limit, Short-circuit protection, Thermal shutdown -40 125 HTMSOP-8, HSNT-8(2030)
S-19989 Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER Start-Stop, 36V input, Small packages Step-up (Boost) External PWM/PFM switching control 3.0 36.0 45.0 - 6.8 8.5 2200, 400 - Current limit, Short-circuit protection, Thermal shutdown, STATUS -40 125 HTMSOP-8, HSNT-8(2030)
S-19990 Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER Step-up / Flyback, SSCG*, 36V input, Small packages Step-up (Boost) External PWM/PFM switching control 3.0 36.0 45.0 - - - 2200, 400 - Current limit, Short-circuit protection, Thermal shutdown, SSCG* -40 125 HTMSOP-8, HSNT-8(2030)
S-19999 Automotive Switching Regulators (DC-DC Converters) chip1stop CoreStaFF Digi-Key MOUSER Start-Stop, SSCG*, 36V input, Small packages Step-up (Boost) External PWM/PFM switching control 3.0 36.0 45.0 - 6.8 8.5 2200, 400 - Current limit, Short-circuit protection, Thermal shutdown, SSCG*, STATUS -40 125 HTMSOP-8, HSNT-8(2030)

*SSCG: Spread spectrum clock generation function