LM3075 datasheet(1/18 Pages) NSC

номер детали	LM3075

подробное описание детали	High Efficiency, Synchronous Current Mode Buck Controller

PDF	18 Pages

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производитель	NSC [National Semiconductor (TI)]

домашняя страница	http://www.national.com

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LM3075

High Efficiency, Synchronous Current Mode Buck

Controller

General Description

The LM3075 is a current mode control, synchronous buck

controller IC. Use of synchronous rectification and pulse-

skipping operation at light load achieves high efficiency over

a wide load range. Fixed frequency operation can be ob-

tained by disabling the pulse-skipping mode. Current mode

control assures excellent line and load regulation and a wide

loop bandwidth for fast response to load transients.

Current mode control can be achieved by either sensing

across the high side NFET or a sense resistor. The switching

frequency can be selected as either 200 kHz or 300 kHz

from an internal clock.

The LM3075 is available with an adjustable output in a

TSSOP-20 package.

Features

n

Input voltage range of 4.5V-36V

n

Current Mode Control

n

Skip mode operation available

n

Cycle by cycle current limit

n

1.24V ±2% Reference

Applications

n

Automotive Power Supplies

n

Distributed Power Systems

Typical Application Circuit

20162301

September 2005

DS201623

www.national.com

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Аналогичный номер детали - LM3075

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