DESCRIPTION

The AIC1562 is a high performance monolithic DC/DC converter drive IC with outputbootstrapping capability, designed specifically for driving N-channel MOSFET to achieve maximum possible power conversion efficiency. The device consists of an internal temperature compensated reference, comparator, controlled duty cycle oscillator, bootstrapped driver and a 800mA output switch. Working with the AIC1741, a low power adjustable regulator, the AIC1562 works at 100 duty cycle under heavy load transient conditions to minimize transient response time, making it an idea precision switching power solution to stringent requirements on computer mother boards.

FEATURES

• 3V to 20V Input Voltage Operation.

• Internal 800mA Switch.

• Bootstrapped Driver for N-Channel MOSFET.

• High Efficiency (up to 90).

• Fast Transient Response.

• Internal ±2 Reference.

• Low Quiescent Current at 1.6mA.

• Frequency Operation from 200Hz to 200KHz.

APPLICATIONS

• CPU Power Supplies for Mother Boards.

• DC/DC Converters for CPU VRMs.

• Step-Down DC-DC Converter Module.