DESCRIPTION

The APU3073 controller IC is designed to provide a low cost synchronous Buck regulator for on-board DC to DC converter for multiple output applications.

The outputs can be programmed as low as 0.8V for low voltage applications.

FEATURES

■ Synchronous Controller plus one LDO controller

■ Current Limit using MOSFET Sensing

■ Single 5V/12V Supply Operation

■ Programmable Switching Frequency up to

400KHz

■ Soft-Start Function

■ Fixed Frequency Voltage Mode

■ Precision Reference Voltage Available

■ Uncommitted Error Amplifier available for DDR

■ voltage tracking application

APPLICATIONS

■ DDR memory source sink VTT application

■ Low cost on-board DC to DC such as

12V/5V to output voltages as low as 0.8V

■ Graphic Card

■ Hard Disk Drive

■ Multi-Output Applications

■ RoHS Compliant