Datasheet4U Logo Datasheet4U.com

RT8057 Datasheet 2.25mhz 1a Synchronous Step-down Converter

Manufacturer: Richtek

Overview: ® RT8057 2.25MHz 1A Synchronous Step-Down Converter General.

Datasheet Details

Part number RT8057
Manufacturer Richtek
File Size 165.29 KB
Description 2.25MHz 1A Synchronous Step-Down Converter
Datasheet RT8057-Richtek.pdf

General Description

The RT8057 is a high efficiency Pulse-Width-Modulated (PWM) step-down DC/DC converter, capable of delivering 1A output current over a wide input voltage range from 2.7V to 5.5V.

The RT8057 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources such as cellular phones, PDAs, handheld devices, game console and related accessories.

The internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode.

Key Features

  • 2.7V to 5.5V Wide Input Operation Range.
  • 2.25MHz Fixed-Frequency PWM Operation.
  • Up to 1A Output Current.
  • Up to 90% Efficiency.
  • 0.6V Reference Allows Low Output Voltage.
  • Internal Soft-Start.
  • No Schottky Diode Required.
  • Internal Compensation to Reduce External Components.
  • Low Dropout Operation : 100% Duty Cycle.
  • RoHS Compliant and Halogen Free.

More Datasheets from Richtek

Part Number Description
RT8057A 2.25MHz 1A Synchronous Step-Down Converter
RT8055 3A Synchronous Step-Down Converter
RT8055B Synchronous Step-Down Converter
RT8058 High Efficiency PWM Step-Down DC/DC Converter
RT8058A High Efficiency PWM Step-Down DC/DC Converter
RT8059 High Efficiency PWM Step-Down DC/DC Converter
RT8003 High-Efficiency Synchronous Buck PWM Converter
RT8005 High-Efficiency Synchronous Buck PWM Converter
RT8008 High Efficiency PWM Step-Down DC/DC Converter
RT8009 High Efficiency PWM Step-Down DC/DC Converter

RT8057 Distributor