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LM2637 - Motherboard Power-Supply Solution

Datasheet Summary

Description

The LM2637 provides a comprehensive embedded power supply solution for motherboards hosting high performance MPUs such as M II™, Pentium™ II, K6-2 and other similar high performance MPUs.

Features

  • n Provides 3 regulated voltages n Power Good flag and output enable n Under-voltage latch-off Switching Section n Synchronous rectification n 5-bit DAC programmable from 3.5V to 1.3V n Typical 1% DAC tolerance n Switching frequency: 50 kHz to 1 MHz n Two levels of over-voltage protection n Two methods of over-current protection n Adaptive non-overlapping FET gate drives n Soft start without external capacitor Linear Section n N-FET and NPN driving capability n Ultra fast response speed n Output.

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Datasheet Details

Part number LM2637
Manufacturer National Semiconductor
File Size 360.74 KB
Description Motherboard Power-Supply Solution
Datasheet download datasheet LM2637 Datasheet
Additional preview pages of the LM2637 datasheet.

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Full PDF Text Transcription

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LM2637 Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two Linear Regulator Controllers October 1998 LM2637 Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two Linear Regulator Controllers General Description The LM2637 provides a comprehensive embedded power supply solution for motherboards hosting high performance MPUs such as M II™, Pentium™ II, K6-2 and other similar high performance MPUs. The LM2637 incorporates a 5-bit programmable, synchronous buck switching controller and two high-speed linear regulator controllers in a 24-pin SO package. Both linear controllers have under voltage latch-off.
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