RT6255A Datasheet Step-Down Converter

Manufacturer: Richtek

RT6255A step-down converter by Richtek - Datasheet Preview

Datasheet Details

Part number	RT6255A
Manufacturer	Richtek
File Size	367.84 KB
Description	Step-Down Converter
Download	RT6255A Download (PDF)

General Description

The RT6255A/B is a high-performance, synchronous stepdown DC-DC converter that can deliver up to 5A output current from a 4.5V to 18V input supply.

The device integrates low RDS(ON) power MOSFETs, accurate 0.6V reference and an integrated diode of bootstrap circuit to offer a very compact solution.

The RT6255A/B adopts Advanced Constant On-Time (ACOTTM) control architecture that provides ultrafast transient response and further reduces the externalcomponent count.

Overview

Reference Design Sample & Buy ® RT6255A/B 5A, 18V, 500kHz, ACOTTM Step-Down Converter.

Key Features

are also integrated in the device including the cycle-by-cycle current limit control, UVP, input UVLO and OTP. The RT6255A/B is available in the TSOT-23-6 (FC) and TSOT-23-8 (FC) package. Features.
Input Supply Voltage Range : 4.5V to 18V.
Output Current : 5A.
Advanced Constant On-Time (ACOTTM) Control for Ultrafast Transient Response.
Steady Switching Frequency : 500kHz  Forced PWM Mode (RT6255B)  Pulse-Skipping Mode (PSM) at Light Load (RT6255A).
Optimized for Low-E.

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