General Description

The RT8063 is a high efficiency synchronous, step-down DC/DC converter. Its input voltage range is from 2.7V to 5.5V and provides an adjustable regulated output voltage from 0.8V to 5V 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 default switching frequency is set at 2MHz, if the RT pin is left open. It can also be varied from 200kHz to 2MHz by adding an external resistor. Current mode operation with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

Features

High Efficiency : Up to 95%

Adjustable Frequency : 200kHz to 2MHz

No Schottky Diode Required

0.8V Reference Allows Low Output Voltage

Low Dropout Operation : 100% Duty Cycle

Enable Function

Internal Soft-Start

RoHS Compliant and Halogen Free

Applications

LCD TV and Monitor

Notebook Computers

Distributed Power Systems

IP Phones

Digital Cameras