Automotive ICs

Automotive Linear Regulators (LDO Regulators)

For general use  |  For automotive

Product Lineup View All Products/Datasheets

An automotive linear regulator (LDO regulator, low dropout voltage regulator) is a type of power supply IC that can output a steady voltage from an input voltage and is used in a variety of automotive electronic devices.
ABLIC's automotive linear regulators (LDO regulators) offer a wide range of options, including an ultra-compact package measuring 0.8×0.8mm, a high heat-dissipation TO-252-5S package, 50V input voltage, low current consumption of just 2.0µA (typ.), fast transient response, and high ripple rejection. Additionally, products with features such as built-in watchdog timers, soft start functions, or reset functions are also available.
Moreover, our automotive linear 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 traction inverters and engine ECUs. We also support customers' automotive application designs through thermal simulation service and the provision of FIT rate.

*Our voltage regulator (LDO regulator) product line has been renamed to “linear regulator” (LDO regulator). This is a change in name only, which does not affect product specifications or performance. Please note that the previous name may still be used in some of our data sheets and other publications.

Top Picks

S-19212xxxA/H

125°C/105°C, 36V input, 250mA, low current consumption of 6.5µA typ.

S-19243xxxA/H

125°C/105°C, 10V Input, 500mA, soft-start function

S-19213

125°C, 36V input, 500mA, low current consumption of 5.0µA typ.

S-19244xxxA/H

125°C/105°C, 10V input, 1000mA, soft-start function

New Products

S-19317

125°C, 36V input, 250mA, reset function

S-19318

125°C, 36V input, 500mA, reset function

S-19222

125°C, 36V input, 300mA, high PSRR

S-19255

125°C, 5.5V input, 300mA, high PSRR

Featured Applications

Traction Inverters

Offers LDOs for power supplies used in sensors and microcontrollers (MCUs), gate driver circuits, and others.

Power Closure Systems

Offers LDOs for powering sensors, LDOs with built-in watchdog timers to monitor MCUs, and others.

Headlamps & Rear Lamps

Offers LDOs for powering sensors, LDOs with built-in watchdog timers to monitor MCUs, and others.

On Board Chargers

Offers LDOs that can output a high voltage for gate driver circuits and more.

Related Content

What is an LDO? What is a linear regulator?

Operating principle and configuration of a linear regulator

What is Functional Safety?

Introduction of Automotive Power Management ICs

Product Lineup

Series Name Datasheet Application Note Product Category Buy Online Parts List Features VIN min. [V] VIN max. [V] Absolute maximum rating [V] IOUT [mA] VOUT min. [V] VOUT max. [V] VOUT accuracy ±[%] All temp. Vdrop typ. [V] Tj max. [℃] ISS typ. [μA] COUT min. [μF] Type Operation temp. min. [°C] Operation temp. max. [°C] Package
Series name
S-1142A/BxxH Automotive Linear Regulators (LDO Regulators) 50V high input (low current consumption) 3.0 50.0 60.0 200 2.0 15.0 3.0 0.35 125 4.0 0.1 LDO* -40 105 HSOP-6
S-1142C/DxxA Automotive Linear Regulators (LDO Regulators) 50V high input (low current consumption) 3.0 50.0 60.0 200 2.0 12.0 4.0 0.35 135 4.0 0.1 LDO* -40 125 HSOP-6
S-1142C/DxxH Automotive Linear Regulators (LDO Regulators) 50V high input (low current consumption) 3.0 50.0 60.0 200 2.0 15.0 3.0 0.35 125 4.0 0.1 LDO* -40 105 HSOP-6
S-19200A/BxxA Automotive Linear Regulators (LDO Regulators) 50V high input (low current consumption) 3.0 50.0 60.0 200 2.0 15.0 4.0 0.23 135 4.0 0.1 LDO* -40 125 TO-252-5S(A)
S-19200A/BxxH Automotive Linear Regulators (LDO Regulators) 50V high input (low current consumption) 3.0 50.0 60.0 200 2.0 15.0 3.0 0.23 125 4.0 0.1 LDO* -40 105 HSOP-6, TO-252-5S(A)
S-19212B/DxxA Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 36V high input (low current consumption) 3.0 36.0 45.0 250 2.5 16.0 2.0 0.35 150 6.5 1.0 LDO* -40 125 TO-252-5S(A), HSOP-8A, HSOP-6, SOT-89-5, SOT-23-5, HTMSOP-8
S-19212B/DxxH Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 36V high input (low current consumption) 3.0 36.0 45.0 250 2.5 16.0 2.0 0.35 150 6.5 1.0 LDO* -40 105 TO-252-5S(A), HSOP-8A, HSOP-6, SOT-89-5, SOT-23-5, HTMSOP-8
S-19213 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 36V high input (low current consumption) 2.8 36.0 45.0 500 1.8 30.0 1.5 0.13 150 5.0 1.0 LDO* -40 125 TO-252-5S(A), HSOP-8A
S-19214 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 36V high input (low current consumption) 2.8 36.0 45.0 1000 1.8 30.0 1.5 0.13 150 5.0 1.0 LDO* -40 125 TO-252-5S(A), HSOP-8A
S-19218 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 36V high input, Fast transient response, 0.1µF input capacitor available 3.0 36.0 45.0 500 2.5 30.0 1.5 0.17 150 30.0 1.0 LDO* -40 125 TO-252-5S(A), HSOP-8A
S-19222xxxA Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 36V high input, High ripple rejection, Fast transient response, 0.1µF input capacitor available 3.0 36.0 45.0 300 1.8 30.0 1.5 0.25 150 22.0 1.0 LDO* -40 125 TO-252-5S(A), HSOP-8A, SOT-89-5, SOT-23-5, HTMSOP-8
S-19243xxxA Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 10V input, 500mA output 2.5 10.0 12.0 500 0.9 9.0 2.3 0.09 150 120.0 2.2 LDO* -40 125 TO-252-5S(A), HSOP-8A, HSOP-6, SOT-89-5, HSNT-8(2030)
S-19243xxxH Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 10V input, 500mA output 2.5 10.0 12.0 500 0.9 9.0 2.3 0.09 150 120.0 2.2 LDO* -40 105 TO-252-5S(A), HSOP-8A, HSOP-6, SOT-89-5, HSNT-8(2030)
S-19244xxxA Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 10V input, 1000mA output 2.5 10.0 12.0 1000 1.0 9.0 2.3 0.38 150 120.0 2.2 LDO* -40 125 TO-252-5S(A), HSOP-8A, HSOP-6, HSNT-8(2030)
S-19244xxxH Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 10V input, 1000mA output 2.5 10.0 12.0 1000 1.0 9.0 2.3 0.38 150 120.0 2.2 LDO* -40 105 TO-252-5S(A), HSOP-8A, HSOP-6, HSNT-8(2030)
S-19246xxxH Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER 10V input, 2000mA output 2.5 10.0 12.0 2000 1.0 6.0 2.3 0.62 150 120.0 2.2 LDO* -40 105 TO-252-5S(A)
S-19251 Automotive Linear Regulators (LDO Regulators) 0.8mm super-small package 1.5 5.5 6.0 150 1.0 3.5 2.5 0.16 125 20.0 1.0 LDO* -40 105 SOT-23-5, HSNT-4(1010)B, HSNT-4(0808)B
S-19252 Automotive Linear Regulators (LDO Regulators) High ripple rejection, Soft start function 1.5 5.5 6.0 150 1.0 3.6 3.0 0.07 125 36.0 1.0 LDO* -40 105 SOT-23-5, SC-82AB, HSNT-4(1010)B
S-19253xxxH Automotive Linear Regulators (LDO Regulators) 6.5V input, 500mA output 2.5 6.5 7.0 500 1.0 5.5 3.0 0.09 150 120.0 2.2 LDO* -40 105 SOT-89-5
S-19254xxxH Automotive Linear Regulators (LDO Regulators) 6.5V input, 1000mA output 2.5 6.5 7.0 1000 1.0 5.5 3.0 0.38 150 120.0 2.2 LDO* -40 105 HSOP-8A
S-19255 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER High ripple rejection, 0.1µF input capacitor available, 1.0mm super-small package 1.5 5.5 6.0 300 0.9 3.6 2.0 0.12 150 55.0 1.0 LDO* -40 125 SOT-23-5, HSNT-4(1010)B
S-19310 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Monitors output voltage of built-in LDO voltage regulator 3.0 36.0 45.0 40 2.9 5.3 2.0 0.24 150 2.2 1.0 LDO+VD* -40 125 HTMSOP-8, SOT-23-5, SOT-89-5
S-19311 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Small, high heat dissipation 4.0 36.0 45.0 200 3.0 5.3 2.0 0.12 150 60.0 2.2 LDO+VD* -40 125 HSOP-8A, TO-252-5S(A)
S-19312 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Small, high heat dissipation 4.0 36.0 45.0 400 3.0 5.3 2.0 0.12 150 60.0 2.2 LDO+VD* -40 125 HSOP-8A, TO-252-5S(A)
S-19315 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Monitors voltage at SENSE pin connection 3.0 36.0 45.0 40 1.0 5.3 2.0 0.24 150 2.0 1.0 LDO+VD* -40 125 HTMSOP-8, SOT-23-5, SOT-89-5
S-19316 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Monitors input voltage of built-in LDO voltage regulator 3.0 36.0 45.0 40 1.0 5.3 2.0 0.24 150 2.0 1.0 LDO+VD* -40 125 HTMSOP-8, SOT-23-5, SOT-89-5
S-19317 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Low current consumption, High heat dissipation 3.0 36.0 45.0 250 3.3 5.0 2.0 0.10 150 3.0 1.0 LDO+VD* -40 125 HSOP-8A, TO-252-9S
S-19318 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Low current consumption, High heat dissipation 3.0 36.0 45.0 500 3.3 5.0 2.0 0.10 150 3.0 1.0 LDO+VD* -40 125 HSOP-8A, TO-252-9S
S-19500/19501 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Time-out WDT, WEN pin selectable 4.0 36.0 45.0 200 3.0 5.3 2.0 0.12 150 60.0 2.2 LDO+VD+WDT* -40 125 HSOP-8A
S-19502/19503 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Time-out WDT, WEN pin selectable 4.0 36.0 45.0 400 3.0 5.3 2.0 0.12 150 60.0 2.2 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S
S-19504/19505 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Time-out WDT, WEN pin selectable 3.0 36.0 45.0 250 3.3 5.0 2.0 0.12 150 3.0 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S
S-19506/19507 Automotive Linear Regulators (LDO Regulators) Time-out WDT, WEN pin selectable 3.0 36.0 45.0 500 3.3 5.0 2.0 0.12 150 3.0 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S
S-19509 Automotive Linear Regulators (LDO Regulators) Time-out WDT with WEN pin, ON / OFF circuit 3.0 36.0 45.0 500 3.3 5.0 2.0 0.12 150 3.2 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S, HTSSOP-16
S-19514/19515 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Window WDT, WEN pin selectable 3.0 36.0 45.0 250 3.3 5.0 2.0 0.12 150 3.0 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S
S-19516/19517 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Window WDT, WEN pin selectable 3.0 36.0 45.0 500 3.3 5.0 2.0 0.12 150 3.0 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S
S-19518 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Window WDT with WEN pin, ON / OFF circuit 3.0 36.0 45.0 250 3.3 5.0 2.0 0.12 150 3.2 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S
S-19519 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Window WDT with WEN pin, ON / OFF circuit 3.0 36.0 45.0 500 3.3 5.0 2.0 0.12 150 3.2 1.0 LDO+VD+WDT* -40 125 HSOP-8A, TO-252-9S, HTSSOP-16
S-19700 Inquiry Automotive Linear Regulators (LDO Regulators) Current monitoring, Current limit 4.5 36.0 45.0 400 3.3 20.0 2.3 0.08 150 80.0 4.7 LDO* -40 125 HSOP-8A
S-19701 Inquiry Automotive Linear Regulators (LDO Regulators) Current monitoring, Current limit 4.5 36.0 45.0 600 3.3 20.0 2.3 0.08 150 80.0 4.7 LDO* -40 125 HSOP-8A
S-19720 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Low offset voltage, Low current cunsumption during power-off, Reverse current protection 4.0 36.0 45.0 50 2.0 18.0 - 0.16 150 30.0 1.0 Tracker* -40 125 SOT-23-5, HSNT-6(2025)
S-19721 Automotive Linear Regulators (LDO Regulators) chip1stop CoreStaFF Digi-Key MOUSER Low offset voltage, Low current cunsumption during power-off, Reverse current protection, Anomaly notification 4.0 36.0 45.0 250 2.0 8.0 - 0.33 150 40.0 4.7 Tracker* -40 125 TO-252-9S, HSOP-8A, HSNT-8(2030)

*WDT: Watchdog timer   *VD: Voltage detector (Reset IC)   *LDO: Low-dropout regulator   *Tracker: Voltage tracker