RT8203 - Main Power-Supply Controllers

Richtek

Description

Pin No.

1 2P Pin Name NC GOOD Connect to GND.

Power Good Open Drain Output.

Features

include diode-emulation, which maximizes efficiency in light-load.

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RT8203 main power-supply controllers by Richtek - Datasheet Preview

Datasheet Details

Part number	RT8203
Manufacturer	Richtek
File Size	500.67 KB
Description	Main Power-Supply Controllers
Datasheet	RT8203 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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RT8203 High-Efficiency, Quad Output, M ain Power- Supply Controllers for Notebook Computers General D escription The RT8203 dual step-down, switch-mode power-supply (SMPS) controllers generate logic-supply voltages in battery-powered systems. The RT8203 include two pulsewidth modulation (PWM) controllers, adjustable from 2V to 5.5V or fixed at 5Vand 3.3V . These devices feature two linear regulators providing 5V and 3.3V always-on outputs. Each linear regulator provides up to 100mA output current with automatic linear regulator bootstra pping to the main SMPS outputs. The RT8203 include on-board power-up sequencing, a power-good (PGOOD) output, internal softstart, and soft-shutdown output discharge that prevents negative voltage s on shutdown.