Automotive ICs

Automotive, 125°C Operation, 36 V Input, 300 mA, Fast Transient Response, Voltage Regulator S-19222xxxA Series

Features of automotive voltage regulator S-19222xxxA Series

This IC developed by using high-withstand voltage CMOS process technology, is a positive voltage regulator with a high-withstand voltage, low current consumption and high-accuracy output voltage.
This IC operates at the maximum operation voltage of 36 V and has a built-in low on-resistance output transistor, which provides a very small dropout voltage and a large output current. In addition, favorable transient response characteristics ensure stable output voltage even if the power supply voltage should be impacted by transient fluctuations. The regulator can be combined with a 0.1 μF low-capacity input capacitor. The lineup has also been extended to include a model where the output voltage can be set using an external resistor in addition to the model where it is set inside the IC.
Also, a built-in overcurrent protection circuit to limit overcurrent of the output transistor and a built-in thermal shutdown circuit to limit heat are included.

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 (internally set)
1.8 V, 2.5 V, 3.0 V, 3.3 V, 5.0 V, 5.5 V, 6.0 V
Output voltage (externally set)
1.8 V to 30.0 V, settable via external resistor
Input voltage
3.0 V to 36.0 V
Output voltage accuracy
±1.5% (Tj = -40°C to +125°C)
Current consumption
During operation: 22.0 µA typ., 40.0 µA max. (Tj = −40°C to +125°C)
During power-off: 0.1 µA typ., 0.5 µA max. (Tj = −40°C to +125°C)
Output current
Possible to output 300 mA (at Vin ≧ Vout(s) + 2.0 V)*1
Ripple rejection
75 dB typ. (at f = 1.0 kHz)
Input capacitor
A ceramic capacitor can be used. (0.1 μF or more) 
Output capacitor
A ceramic capacitor can be used. (1.0 μF or more) 
Fast transient response
Built-in overcurrent protection circuit
Limits overcurrent of output transistor.
Built-in thermal shutdown circuit
Detection temperature 170°C typ. 
Built-in ON / OFF circuit
Ensures long battery life
Discharge shunt function is available.
Pull-down function is available.
Operation temperature range
Ta=−40°C to +125°C
Lead-free (Sn 100%), halogen-free
Withstand 45 V load dump
AEC-Q100 in process*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.


  • Constant-voltage power supply for electrical application for vehicle interior
  • Constant-voltage power supply for home electric appliance
  • For automotive use (engine, transmission, suspension, ABS, related-devices for EV / HEV / PHEV, etc.)

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.