LM2640 Dual Adjustable Step-Down Switching Power Supply Controller

Texas Instruments

Description

LM2640 www.ti.com SNVS019B * DECEMBER 1998 * REVISED APRIL 2013 LM2640 Dual Adjustable Step-Down Switching Power Supply Controller .
The LM2640 is a dual step-down power supply controller intended for application in notebook personal computers and other battery-powered equipment.

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Datasheet Specifications

Part number: LM2640
Manufacturer: Texas Instruments ↗
File Size: 1.42 MB
Datasheet: LM2640-etcTI.pdf
Description: Dual Adjustable Step-Down Switching Power Supply Controller

Features

* 1
* 2 200 kHz Fixed-Frequency Switching
* Switching Synchronization with an External Signal up to 400 kHz
* Optional Pulse-Skipping Mode
* Adjustable Secondary Feedback
* Input Undervoltage Lockout
* Output Undervoltage Shutdown Protection
* Out

Applications

* Notebook and Subnotebook Computers
* Wireless Data Terminals
* Battery-Powered Instruments KEY SPECIFICATIONS
* 96% Efficient
* 5.5V to 30V Input Range
* Dual Outputs Adjustable from 2.2V to 6V
* 0.5% Typical Load Regulation Error

LM2640 Distributors

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LM2640 Dual Adjustable Step-Down Switching Power Supply Controller Texas Instruments

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