© Seiko Instruments Inc., 2015
FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE LOW DROPOUT
CMOS VOLTAGE REGULATOR
The S-19212 Series, 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, and has a built-in ON / OFF
The S-19212 Series operates at the maximum operation voltage of 36 V and a low current consumption of 6.5 μA typ., and
has a built-in low on-resistance transistor which provides a very small dropout voltage and a large output current.
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.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in
the purpose, contact to SII is indispensable.
• Output voltage:
• Input voltage:
• Output voltage accuracy:
• Current consumption:
• Output current:
• Input capacitor:
• Output capacitor:
• Built-in overcurrent protection circuit:
• Built-in thermal shutdown circuit:
• Built-in ON / OFF circuit:
• Built-in discharge shunt circuit:
• Operation temperature range:
• Lead-free (Sn 100%), halogen-free
• AEC-Q100 in process*2
2.5 V to 16.0 V, selectable in 0.1 V step
3.0 V to 36 V
±2.0% (Tj = −40°C to +125°C)
During operation: 6.5 μA typ., 8.5 μA max. (Tj = −40°C to +125°C)
During power-off: 0.1 μA typ., 3.5 μA max. (Tj = −40°C to +125°C)
Possible to output 250 mA (at VIN ≥ VOUT(S) + 2.0 V)*1
A ceramic capacitor can be used. (1.0 μF or more)
A ceramic capacitor can be used. (1.0 μF to 100 μF)
Limits overcurrent of output transistor.
Detection temperature 165°C typ.
Ensures long battery life.
Discharges the electric charge of the output capacitor during power-off.
(RLOW = 70 kΩ typ.)
Ta = −40°C to +125°C
*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 (engine, transmission, suspension, ABS, related-devices for EV / HEV / PHEV, etc.)
Seiko Instruments Inc.