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

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General Description

The LM2640 is a dual step-down power supply controller intended for application in notebook personal computers and other battery-powered equipment.

Overview

LM2640 Dual Adjustable Step-Down Switching Power Supply Controller December 1998 LM2640 Dual Adjustable Step-Down Switching Power Supply.

Key Features

  • n 200 kHz fixed-frequency switching n Switching synchronization with an external signal up to 400 kHz n Optional pulse-skipping mode n Adjustable secondary feedback n Input undervoltage lockout n Output undervoltage shutdown protection n Output overvoltage shutdown protection n Programmable soft-start (each controller) n 5V, 50 mA linear regulator output n Precision 2.5V reference output n 28-pin TSSOP.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Texas Instruments Logo LM2640 Dual Adjustable Step-Down Switching Power Supply Controller Texas Instruments
Texas Instruments Logo LM26400Y 500-kHz Wide Input Range Buck Regulator Texas Instruments

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