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RT5771D - Synchronous Step-Down Converter

General Description

The RT5771D 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.

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.

📥 Download Datasheet

Datasheet Details

Part number RT5771D
Manufacturer Richtek
File Size 145.02 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT5771D Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® RT5771D 3A, 1MHz, Synchronous Step-Down Converter General Description The RT5771D 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. The switching frequency is fixed internally at 1MHz. The 100% duty cycle provides low dropout operation, hence extending battery life in portable systems. Current mode operation with internal compensation allows the transient response to be optimized over a wide range of loads and output capacitors. The RT5771D is available in the WDFN-10L 3x3 package.