The SC1563 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 500mA.
The SC1563 is a high‑performance positive‑voltage LDO regulator with a very low dropout of 350 mV at 500 mA. It offers an adjustable output from 1.2 V to 4.8 V and fixed‑voltage options for use in motherboards, peripheral cards, PCMCIA cards, and battery‑powered systems. The device includes over‑current, over‑temperature, and shutdown protection, and operates over a wide industrial temperature range.
The datasheet details absolute maximum ratings, electrical characteristics, pin‑out, package information (5‑pin SOT‑23), and mechanical dimensions. Typical application circuits and block diagrams illustrate how to use the regulator, while the pin description explains the function of the shutdown, ADJ, OUT, IN, and GND pins.
| Output Voltage Range | 1.2 V to 4.8 V (adjustable) |
|---|---|
| Quiescent Current | 85 µA typical at 3.3 V |
| Input Voltage Range | 2.2 V to 6.5 V |
| Package | 5‑pin SOT‑23 surface‑mount |
The SHDN pin disables the regulator when left open, reducing quiescent current to a fraction of its operating value.
Fixed output voltage options include 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.1 V, and 3.3 V.
The SC1563 is supplied in a 5‑pin SOT‑23 surface‑mount package.