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LM2638 Datasheet

Motherboard Power-supply Solution

Manufacturer: National Semiconductor (now Texas Instruments)

LM2638 Overview

The LM2638 provides a prehensive embedded power supply solution for motherboards hosting high performance MPUs such as Pentium™ II, M II™, K6™-2 and other similar high performance MPUs. The LM2638 incorporates a 5-bit programmable, synchronous buck switching controller and two high-speed linear regulator controllers in a 24-pin SO package. In a typical application, the switching controller supplies the MPU core, and...

LM2638 Key Features

  • The switching regulator controller features an Intel-patible, 5-bit programmable output voltage, over-current and over-v
  • The two linear regulator controllers feature wide control bandwidth, N-FET and NPN transistor driving capability and an

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