DESCRIPTION

The AIC1579 is a high-power, high-efficiency voltage-mode switching regulator controller for motherboard V I/O power supply applications. Designed to drive an N-channel MOSFET in a standard buck topology, the AIC1579 features a high voltage CMOS output driver, short-circuit protection, and 8-pin package.

FEATURES

• Operation Voltage up to 15V.

• Simple Voltage-Mode PWM Control.

• Fast Transient Response.

• 2V and 1.3V ± 2 Feedback Voltage Reference Option.

• Adjustable Current Limit without External Sense Resistors.

• 200KHz Free-Running Oscillator.

• Short-Circuit Protection with Low Short Circuit Output Current.

APPLICATIONS

• Power Supply for Motherboard VGTL (1.5V Output)

• Power Supply for Motherboard VI/O.

• High-Power 5V to 3.xV DC/DC Regulators.

• Low-Voltage Distributed Power Supplies.