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ML4900 - High Current Synchronous Buck Controller

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

  • s 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 isol.

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Datasheet Details

Part number ML4900
Manufacturer Micro Linear
File Size 232.00 KB
Description High Current Synchronous Buck Controller
Datasheet download datasheet ML4900 Datasheet

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Other Datasheets by Micro Linear

Part Number Description
ML4901 High Current Synchronous Buck Controller
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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July 2000 ML4900* High Current Synchronous Buck Controller 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®. The ML4900 controller, when combined with two N-channel MOSFETs, generates output voltages between 2.1V and 3.5V from a 5V supply. The output voltage is selected via an internal 4-bit DAC. Output currents in excess of 14A can be attained at efficiencies greater than 90%. The ML4900 can be enabled/disabled via the SHDN pin. While disabled, the output of the regulator is completely isolated from the circuit’s input supply.
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