Power Management ICs

5.5 V Input, 200 mA, Low Noise Voltage Regulator S-1324 Series

DatasheetJan. 29, 2018


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The S-1324 Series, developed by using the CMOS technology, is a positive voltage regulator IC which has low noise and low dropout voltage.
Output noise is as low as 17 μVrms typ., and a ceramic capacitor of 1.0 μF or more can be used as the input and output capacitors.
It also has high-accuracy output voltage of ±1.0%.


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
170 mV typ. (2.8 V output product, at IOUT = 100 mA)
Current consumption
During operation: 7 μA typ., 12 μA max.
During power-off: 0.01 μA typ., 0.1 μA max.
Output current
Possible to output 100 mA
(at 1.0 V ≤ VOUT(S) < 1.2 V, VIN ≥ VOUT(S) + 1.0 V)*1
Possible to output 200 mA
(at VOUT(S) ≥ 1.2 V, VIN ≥ VOUT(S) + 1.0 V)*1
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)
Output noise
17 μVrms typ. (at BW = 10 Hz to 100 kHz)
Ripple rejection
65 dB typ.(at f = 1.0 kHz)
Built-in overcurrent protection circuit
Limits overcurrent of output transistor
Built-in thermal shutdown circuit
Detection temperature 150°C typ.
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 +85°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.


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