Datasheet4U Logo Datasheet4U.com

RT5771B - Synchronous Step-Down Converter

Datasheet Summary

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.

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 preview – RT5771B

Datasheet Details

Part number RT5771B
Manufacturer Richtek
File Size 169.17 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT5771B Datasheet
Additional preview pages of the RT5771B datasheet.

📁 Similar Datasheet

  • RT5000H - Welding Torch for Robot Coaxial Power Cable for Robot (DAIHEN)
  • RT5000L - Welding Torch for Robot Coaxial Power Cable for Robot (DAIHEN)
  • RT5000S - Welding Torch for Robot Coaxial Power Cable for Robot (DAIHEN)
  • RT5350 - Mini PCI Express Wireless-Module (Ralink)
  • RT5370 - highly integrated MAC/BBP and 2.4-GHz RF/PA/LNA (Ralink)
  • RT5370N - highly integrated MAC/BBP and 2.4GHz RF/PA/LNA (Ralink)
  • RT5390 - Compare IEEE 802.11 b/g/n WLAN (ETC)
  • RT5390 - 802.11b/g/n 1T1R WLAN Manual (MEDIATEK)
  • RT55 - Wirewound Rheostat/Potentiometer (Vishay)
  • RT550PD - Power Transistor (RFHIC)
Other Datasheets by Richtek
  • RT5771A - Synchronous Step-Down Converter
  • RT5771D - Synchronous Step-Down Converter
  • RT5779A - Synchronous Step-Down Converter
  • RT5779B - Synchronous Step-Down Converter
  • RT5701 - 3MHz 4A High Efficiency Step-Down Converter
  • RT5707 - Ultra-Low Quiescent Current HCOT Buck Converter
  • RT5707A - Ultra-Low Quiescent Current HCOT Buck Converter
  • RT5710A - 6V CMCOT Synchronous Step-Down Converter

Full PDF Text Transcription

Click to expand full text
® RT5771B 3A, 1MHz, Synchronous Step-Down Converter 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. 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 RT5771B is available in a WDFN-10L 3x3 package.
Published: |