Automotive ICs are categorized according to their application. The following symbols indicate the types of applications for which an IC can be used.
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.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to SII Semiconductor Corporation is indispensable.
- 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.
- Built-in discharge shunt circuit
- Discharges the electric charge of the output capacitor during power-off.
- 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 office for details.
- 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.)