ML4903中文资料High Current Synchronous Buck Controller数据手册Micro Linear规格书

描述 Description

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

特性 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