RT7231 Datasheet Synchronous Step-Down Converter

Manufacturer: Richtek

Overview: Reference Design Sample & Design Tools Buy ® RT7231/32/33/34 4A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter.

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RT7231 synchronous step-down converter by Richtek - Datasheet Preview

Datasheet Details

Part number	RT7231
Manufacturer	Richtek
File Size	319.69 KB
Description	Synchronous Step-Down Converter
Download	RT7231 Download (PDF)

General Description

The RT7231/32/33/34 is a synchronous step-down DC/ DC converter with Advanced Constant On-Time (ACOT®) mode control.

It achieves high power density to deliver up to 4A output current from a 4.5V to 18V input supply.

The proprietary ACOT® mode offers an optimal transient response over a wide range of loads and all kinds of ceramic capacitors, which allows the device to adopt very low ESR output capacitor for ensuring performance stabilization.

Key Features

ACOT®Mode Enables Fast Transient Response.
4.5V to 18V Input Voltage Range.
4A Output Current.
50mΩ Internal Low Site N-MOSFET.
Advanced Constant On-Time Control.
Support All Ceramic Capacitors.
Up to 95% Efficiency.
650kHz Switching Frequency at all Load Current (RT7231, RT7233).
Discontinuous Operating Mode at Light Load (RT7232, RT7234).
Adjustable Output Voltage from 0.765V to 8V.
Adjustable Soft-Start.
Cycle-by-Cycle Current Limit.

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