LM2638 - Motherboard Power Supply Solution

Texas Instruments

The LM2638 by Texas Instruments is a Motherboard Power Supply Solution. Below is the official datasheet preview.

📥 Download Datasheet

LM2638 Motherboard Power Supply Solution by Texas Instruments - Datasheet Preview — Official preview page of the **LM2638** Motherboard Power Supply Solution datasheet (Texas Instruments).

Datasheet Details

Part number	LM2638
Manufacturer	Texas Instruments
File Size	343.59 KB
Description	Motherboard Power Supply Solution
Datasheet	LM2638-etcTI.pdf
Additional preview pages of the LM2638 datasheet.

LM2638 Product details

Description

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.

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 to 1 MHz.
Over-voltage protection.
Two methods of over-current protection.
Adaptive non-overlapping FET gate drives.
Soft start without external capacitor.

📁 LM2638 Similar Datasheet

LM2630 - Synchronous Step-Down Power Supply Controller (National Semiconductor)
LM2631 - Synchronous Step-Down Power Supply Controller (National Semiconductor)
LM2633 - Advanced Two-Phase Synchronous Triple Regulator Controller (National Semiconductor)
LM2635 - 5-Bit Programmable Synchronous Buck Regulator Controller (National Semiconductor)
LM2636 - 5-Bit Programmable Synchronous Buck Regulator Controller (National Semiconductor)
LM2637 - Motherboard Power-Supply Solution (National Semiconductor)
LM2639 - High Frequency Multi-phase PWM Controller (National Semiconductor)
LM26 - Factory Preset Thermostat (National Semiconductor)

Other Datasheets by Texas Instruments

LM26001 - 1.5-A Switching Regulator
LM26001-Q1 - 1.5-A Switching Regulator
LM26001B - 1.5A Switching Regulator
LM26003 - 3-A Switching Regulator
LM26003-Q1 - 3-A Switching Regulator
LM2601 - Adapter Interface Circuit

Published: Aug 21, 2019 |