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.

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 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.

Applications

  • 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