RT2853B Datasheet PDF (Synchronous Step-Down Converter)

RT2853B - Synchronous Step-Down Converter

This page provides the datasheet information for the RT2853B, a member of the RT2853A Synchronous Step-Down Converter family.

Description

The RT2853A/B are high-performance 650kHz 3A step- down regulators with internal power switches and synchronous rectifiers.

Features

Fast Transient Response.
Steady 650kHz Switching Frequency.
Enhanced Efficiency at Light Load (RT2853A).
Advanced Constant On-Time (ACOT®) Control.
Optimized for Ceramic Output Capacitors.
4.5V to 18V Input Voltage Range.
Internal 110m Switch and 30m Synchronous Rectifier.
0.765V to 7V Adjustable Output Voltage.
Externally-adjustable, Pre-biased Compatible Soft- Start.
Cycle-by-Cycle Current Limit.
Optional Output Discharge Function.

Datasheet Details

Part number	RT2853B
Manufacturer	Richtek
File Size	1.41 MB
Description	Synchronous Step-Down Converter
Datasheet	RT2853B Datasheet
Additional preview pages of the RT2853B datasheet.

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Full PDF Text Transcription

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RT2853A/B 3A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter 1 General Description The RT2853A/B are high-performance 650kHz 3A step- down regulators with internal power switches and synchronous rectifiers. They feature quick transient response using their Advanced Constant On-Time (ACOT® ) control architecture that provides stable operation with small ceramic output capacitors and without complicated external compensation, among other benefits. The input voltage range is from 4.5V to 18V and the output is adjustable from 0.765V to 7V. The proprietary ACOT® control improves upon other fast- response constant on-time architectures, achieving nearly constant switching frequency over line, load, and output voltage ranges.

Published: Mar 19, 2020 |