RT7276 - Synchronous Step-Down Converter

This page provides the datasheet information for the RT7276, a member of the RT7275 Synchronous Step-Down Converter family.

Datasheet Summary

Description

The RT7275/76 are high-performance 700kHz 3A stepdown regulators with internal power switches and synchronous rectifiers.

Features

Fast Transient Response.
Steady 700kHz Switching Frequency  At all Load Currents (RT7275)  Discontinuous Operating Mode at Light Load (RT7276).
3A Output Current.
Advanced Constant On-Time (ACOTTM) Control.
Optimized for Ceramic Output Capacitors.
4.5V to 18V Input Voltage Range.
Internal 90mΩ Switch and 60mΩ Synchronous Rectifier.
0.765V to 8V Adjustable Output Voltage.
Externally-Adjustable, Pre-Biased Compatible Soft- Start.
Cycle-by-Cycle.

Richtek

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Datasheet Details

Part number	RT7276
Manufacturer	Richtek
File Size	424.74 KB
Description	Synchronous Step-Down Converter
Datasheet	RT7276 Datasheet
Additional preview pages of the RT7276 datasheet.

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Full PDF Text Transcription

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Design Sample & Tools Buy ® RT7275/76 3A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter General Description The RT7275/76 are high-performance 700kHz 3A stepdown regulators with internal power switches and synchronous rectifiers. They feature quick transient response using their Advanced Constant On-Time (ACOTTM) 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 8V. The proprietary ACOTTM control improves upon other fastresponse constant on-time architectures, achieving nearly constant switching frequency over line, load, and output voltage ranges.

Published: Sep 20, 2013 |