General Description

The RT8082 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 1V 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 switching ripple voltage is easily smoothed-out by small package filtering elements due to a fixed operating frequency of 2MHz. The 100% duty cycle provides low dropout operation extending battery input range in portable systems. 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%

• 2MHz Fixed Frequency PWM Operation

• No Schottky Diode Required

• 1V Reference Allows Low Output Voltage

• Output Current up to 3A

• Forced Continuous Mode Operation

• Low Dropout Operation : 100% Duty Cycle

• Enable Function

• Power Good Function

• Internal Soft-Start

• RoHS Compliant and Halogen Free

Applications

• LCD TV and Monitor

• Notebook Computers

• Distributed Power Systems

• IP Phones

• Digital Cameras