The SC8863 is a low dropout linear regulator from Semtech that can operate from a +2.5V to +6.0V input voltage range and delivers up to 150mA of current. The SC8863 uses a PMOS pass transistor, which allows the low 110µA supply current to remain independent of load, making it ideal for battery operated portable equipment such as cellular phones, cordless phones and personal digital assistants. The SC8863 output voltage can be preset or adjusted with an external resistor divider. Other features include low power shutdown, short circuit protection, thermal shutdown protection and reverse battery protection. The SC8863 comes in the tiny 5 lead SOT-23 package (lead free, fully WEEE and RoHS compliant available) and the ultra low profile 5 lead TSOT-23.
The SC8863 regulator from Semtech operates from a 2.5 V to 6.0 V input range and delivers up to 150 mA output current. It features a PMOS pass transistor that keeps the supply current low (≈100 µA) regardless of load, making it ideal for battery‑powered devices such as cellular phones and PDAs.
The device is offered in compact SOT‑23‑5 and TSOT‑23‑5 packages, includes an active‑high enable pin, and provides protection features such as thermal shutdown, short‑circuit protection, and reverse‑battery protection. Typical specifications include a dropout voltage of about 140 mV at 50 mA, output noise of 75 µV (10 Hz‑99 kHz), and a PSRR of 55 dB at 1 kHz.
| Input voltage range | 2.5 V – 6.0 V |
|---|---|
| Maximum output current | 150 mA |
| Output voltage noise (10 Hz‑99 kHz) | 75 µV |
| Power‑supply rejection ratio (1 kHz) | 55 dB |
The SC8863 operates from 2.5 V to 6.0 V input.
It can supply up to 150 mA of output current.