GENERAL DESCRIPTION

The ML4900 high current synchronous buck controller has been designed to provide high efficiency DC/DC conversion for next generation processors such as the Pentium® Pro from Intel®.

FEATURES

■ Designed to meet Pentium® Pro power supply requirements

■ DC regulation to +1 maximum

■ Proprietary circuitry provides transient response of +5 maximum over 300mA to 14A load range

■ Programmable output voltage (2.1V to 3.5V) is set by an onboard 4-bit DAC

■ Synchronous N-channel buck topology for maximum power conversion efficiency

■ Fixed frequency operation for easier system integration

■ Integrated antishoot-through logic, short circuit protection, and UV lockout

■ Shutdown control provides load isolation