Automotive ICs

Automotive, 105°C Operation, 5.5 V Input, 150 mA Voltage Regulator with Soft-start Function S-19252 Series

The S-19252 Series, developed by using CMOS process technology, is a positive voltage regulator with high-accuracy output voltage which incorporates the soft-start function. This IC has high ripple-rejection of 80 dB typ., and operates with low current consumption of 36 μA typ. The S-19252 Series incorporates the soft-start function to adjust the rising time of output voltage immediately after power-on or after the ON / OFF pin is set to ON. It also has a built-in overcurrent protection circuit to limit overcurrent of output transistor. In addition to the conventional small packages SOT-23-5 and SC-82AB, the super-small package HSNT-4(1010)B is added to the lineup, which realizes higher-density mounting.

Thermal simulation service
ABLIC Inc. offers a “thermal simulation service” which supports the thermal design in conditions when our power management ICs are in use by customers. Our thermal simulation service will contribute to reducing the risk in the thermal design at customers development stage.
For more information regarding our thermal simulation service, contact our sales representatives.

FIT rate calculation
ABLIC Inc. offers FIT rate calculated based on actual customer usage conditions in order to support customer functional safety design.
For more information regarding our FIT rate calculation, contact our sales representatives.

Caution: This product can be used in vehicle equipment and in-vehicle equipment. Before using the product for these purposes, it is imperative to contact our sales representatives.


Output voltage
1.0 V to 3.6 V, selectable in 0.05 V step
Input voltage
1.5 V to 5.5 V
Output voltage accuracy
±15 mV (1.0 V ≤ VOUT(S) < 1.5 V, Ta = +25°C)
±1.0% (1.5 V ≤ VOUT(S) ≤ 3.6 V, Ta = +25°C)
±3.0% (1.0 V ≤ VOUT(S) ≤ 3.6 V, Tj = −40°C to +105°C)
Current consumption
During operation : 36 μA typ., 57 μA max. (Tj = −40°C to +105°C)
During power-off : 0.1 μA typ., 4.2 μA max. (Tj = −40°C to +105°C)
Dropout voltage
70 mV typ. (2.8 V output product, at IOUT = 100 mA)
Output current
Possible to output 150 mA (at VIN ≥ VOUT(S) + 1.0 V)*1
Ripple rejection
70 dB typ. (VOUT(S) ≤ 2.5 V, at f = 10 kHz)
80 dB typ. (at f = 1.0 kHz)
Input capacitor
A ceramic capacitor can be used. (1.0 μF or more)
Output capacitor
A ceramic capacitor can be used. (1.0 μF or more)
Built-in soft-start circuit
The rising time of output voltage immediately after power-on or after the ON / OFF pin is set to ON is adjustable.
The soft-start time of SOT-23-5 can be switched to tSS0 = 0.1 ms typ. / tSS1 = 1.0 ms typ. with the SST pin.
The soft-start time of SC-82AB is fixed to tSS0 = 0.1 ms typ.
The soft-start time of HSNT-4(1010)B is fixed to either tSS0 = 0.1 ms typ. or tSS1 = 1.0 ms typ.
Built-in overcurrent protection circuit
Limits overcurrent of output transistor.
Built-in ON / OFF circuit
Ensures long battery life.
Discharge shunt function “available” / “unavailable” is selectable.
Pull-down function “available” / “unavailable” is selectable.
Operation temperature range
Ta = −40°C to +105°C
Lead-free (Sn 100%), halogen-free
AEC-Q100 qualified*2

*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.
*2. Contact our sales representatives for details.


  • For automotive use (meter, car body, headlight, ITS, accessory, car navigation system, car audio system, etc.)
    : SOT-23-5 package product, SC-82AB package product
  • For automotive use (accessory, car navigation system, car audio system, etc.)
    : HSNT-4(1010)B package product

Parts List

  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.