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RT5771B Datasheet Synchronous Step-Down Converter

Manufacturer: Richtek

General Description

The RT5771B is a high efficiency synchronous, step-down DC-DC converter.

Its input voltage ranges from 2.7V to 5.5V that provides an adjustable regulated output voltage from 0.6V to VIN while delivering up to 3A of output current.

The internal synchronous low on-resistance power switches increase efficiency and eliminate the need for an external Schottky diode.

Overview

® RT5771B 3A, 1MHz, Synchronous Step-Down Converter General.

Key Features

  • High Efficiency : Up to 95%.
  • High Efficiency at Light Load.
  • Low RDS(ON) Power Switches : 69mΩ/49mΩ.
  • Fixed Frequency : 1MHz.
  • No Schottky Diode Required.
  • Internal Compensation.
  • 0.6V Reference Allows Low Output Voltage.
  • Low Dropout Operation : 100% Duty Cycle.
  • OCP, UVP, OTP.