Power Management ICs

105°C Operation, 5.5 V Input, 150 mA Voltage Regulator S-1312xxxH Series

The S-1312xxxH Series, developed by using the CMOS technology, is a positive voltage regulator IC which has low current consumption, high ripple-rejection and low dropout voltage.
Even with low current consumption of 20 μA typ., it has high ripple-rejection of 75 dB typ., and a ceramic capacitor of 0.22 μF or more can be used as the input and output capacitors.
It also has high-accuracy output voltage of ±1.0%.

Features

Output voltage
1.0 V to 3.5 V, selectable in 0.05 V step.
Input voltage
1.5 V to 5.5 V
Output voltage accuracy
±1.0% (1.0 V to 1.45 V output product±15 mV)
Dropout voltage
160 mV typ. (2.8 V output product,Iout = 100 mA)
Current consumption
During operation: 20 µA typ., 30 µA max.
During power-off: 0.1 µA typ., 1.0 µA max.
Output current
Possible to output 150 mA (Vin ≥ Vout(S) + 1.0 V)*1
Input and output capacitors
A ceramic capacitor of 0.22 µF or more can be used.
Ripple rejection
75 dB typ. (1.2 V output product, f=1.0 kHz)
70 dB typ. (2.85 V output product, f=1.0 kHz)
Built-in overcurrent protection circuit
limits overcurrent of output transistor.
Built-in thermal shutdown circuit
Prevents damage caused by heat.
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

*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.

Applications

  • Constant-voltage power supply for battery-powered device
  • Constant-voltage power supply for home electric appliance