GENERAL DESCRIPTION

The ML4903 high current synchronous buck controller provides high efficiency DC/DC conversion to generate VCCP for processors such as the Pentium®Pro and Pentium II from Intel®.

FEATURES

■ Designed to meet Pentium Pro and Pentium II VRM power supply requirements

■ DC regulation to +1% maximum

■ Proprietary circuitry provides transient response of ±5% maximum over a 0A to 14A load range

■ Programmable output voltage (1.8V to 3.5V) is set by an onboard 2 chord 4-bit DAC

■ Synchronous buck topology for maximum power conversion efficiency

■ Fixed frequency operation for easier system integration

■ Integrated anti-shootthrough logic, short circuit protection, shutdown, and UV lockout