DESCRIPTION

The APU3037 controller IC is designed to provide a low cost synchronous Buck regulator for on-board DC to DC converter applications. With the migration of today’s ASIC products requiring low supply voltages such as 1.8V and lower, together with currents in excess of 3A, traditional linear regulators are simply too lossy to be used when input supply is 5V or even in some cases with 3.3V input supply.

FEATURES

Synchronous Controller in 8-Pin Package

Operating with single 5V or 12V supply voltage

Internal 200KHz Oscillator (400KHz for APU3037A)

Soft-Start Function

Fixed Frequency Voltage Mode

500mA Peak Output Drive Capability

Protects the output when control FET is shorted

RoHS Compliant