The S-19254xxxH 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-19254xxxH 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.
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
 - 0.38 V typ. (2.6 V output product, at Iout = 1000 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 1000 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-Q 100 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.)