LM2657 Datasheet Dual Synchronous Buck Regulator Controller

Manufacturer: National Semiconductor (now Texas Instruments)

LM2657 dual synchronous buck regulator controller by National Semiconductor (now Texas Instruments) - Datasheet Preview

Datasheet Details

Part number	LM2657
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	959.89 KB
Description	Dual Synchronous Buck Regulator Controller
Datasheet	LM2657 Datasheet

General Description

The LM2657 is an adjustable 200kHz-500kHz dual channel voltage-mode controlled high-speed synchronous buck regulator controller ideally suited for high current applications.

The LM2657 requires only N-channel FETs for both the upper and lower positions of each stage.

Overview

LM2657 Dual Synchronous Buck Regulator Controller January 2005 LM2657 Dual Synchronous Buck Regulator.

Key Features

line feedforward to improve the response to input transients. At very light loads, the user can choose between the highefficiency Pulse-skip mode or the constant frequency Forced-PWM mode. Lossless current limiting without the use of external sense resistors is made possible by sensing the voltage drop across the bottom FET. A unique adaptive duty cycle clamping technique is incorporated to significantly reduce peak currents under abnormal load conditions. The two independently programmable outp.

📁 Similar Datasheet

Brand Logo	Part Number	Description	Manufacturer
	LM2657	Dual Synchronous Buck Regulator Controller	Texas Instruments

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