LM2638 Datasheet (Texas Instruments) - Motherboard Power Supply Solution

LM2638, Motherboard Power Supply Solution

The LM2638 provides a comprehensive 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 r

LM2638 Features

* 1

* 2345 Provides 3 regulated voltages

* Power Good flag and output enable

* Charge pump pin

* Switching Section

* Synchronous rectification

* 5-bit DAC programmable down to 1.3V

* Typical ±1% DAC tolerance

* Switching frequency: 50 kHz