The SC112 is a 150mA ultra low dropout linear regulator with a built in CMOS/TTL logic level enable, designed specifically for battery powered applications where low quiescent current and low dropout are critical for battery longevity.
The SC112 is a 150mA ultra low dropout linear regulator designed specifically for battery-powered applications where low quiescent current and low dropout are critical for battery longevity. It features a built-in CMOS/TTL logic level enable, very low quiescent current of 60µA (ON, no load), and very low standby current of 0.1µA maximum (OFF). The device uses a Semtech proprietary internal PNP device for the pass element, providing a low dropout voltage of 130mV at a load of 60mA. Output noise is reduced to 30µV (typical) by placing a very low leakage 10nF capacitor on the noise bypass pin.
The device is packaged in a six-lead SOT-23 surface mount package for a very small footprint. It requires only a 1µF capacitor on the output and a 0.01µF on the bypass pin for a minimum number of external components. Available voltage options include 2.2V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V, 3.8V, 4.0V, and 5.0V. The datasheet provides absolute maximum ratings, electrical characteristics, a typical application circuit, pin descriptions, and package dimensions.
| Output Current | 150mA |
|---|---|
| Standby Current (OFF) | 0.1µA maximum |
| Operating Ambient Temperature Range | -40 to +85 °C |
| Operating Junction Temperature Range | -40 to +125 °C |
| Package Type | 6 pin SOT-23 |
| Available Output Voltages | 2.2V to 5.0V |
The maximum standby current is 0.1µA when the output is OFF.
A 10nF ceramic capacitor is recommended on the noise bypass pin.