Automotive ICs

Automotive, 105°C Operation, 6.5 V Input, 500 mA Voltage Regulator with Soft-start Function S-19253xxxH Series

The S-19253xxxH Series developed by using high-withstand voltage CMOS process technology, is a positive voltage regulator with high-accuracy output voltage and high output current.
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. Also, the S-19253xxxH Series includes the soft-start function to adjust the output voltage rising time at power-on or at the time when the ON / OFF pin is set to ON.

ABLIC Inc. offers a “thermal simulation service” which supports the thermal design in conditions when our power management I Cs 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.

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.

Features

Output voltage
1.0 V to 5.5 V, selectable in 0.05 V step
Input voltage
2.5 V to 6.5 V
Output voltage accuracy
±3.0% (Tj = −40°C to +105°C)
Dropout voltage
0.09 V typ. (2.6 V output product, at Iout = 200 mA)
Current consumption
During operation: 120 μA typ., 150 μA max. (Tj = −40°C to +105°C)
During power-off: 0.1 μA typ., 4.5 μA max. (Tj = −40°C to +105°C)
Output current
Possible to output 500 mA (at Vin ≥ VOUT(S) + 1.0 V)*1
Ripple rejection
60 dB typ. (at f = 1.0 kHz)
Built-in overcurrent protection circuit
Limits overcurrent of output transistor.
Built-in thermal shutdown circuit
Detection temperature 170°C typ.
Built-in soft-start circuit
Adjusts output voltage rising time at power-on or at the time when ON / OFF pin is set to ON.
     Adjustable type: tss = 6.0 ms typ. (Css = 10 nF)
           Soft-start time can be changed by the capacitor (Css).
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 +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.

Applications

  • Constant-voltage power supply for electrical application for vehicle interior
  • Constant-voltage power supply for home electric appliance
  • For automotive use (accessory, car navigation system, car audio system, etc.)