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LM2599T-ADJ

更新时间： 2024-11-28 22:25:39

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器稳压器
页数	文件大小	规格书
31页	814K
描述
SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features

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LM2599T-ADJ 数据手册

April 1998

LM2599

SIMPLE SWITCHER^®Power Converter 150 kHz 3A

Step-Down Voltage Regulator, with Features

standby current. Self protection features include a two stage

current limit for the output switch and an over temperature

shutdown for complete protection under fault conditions.

General Description

The LM2599 series of regulators are monolithic integrated

circuits that provide all the active functions for a step-down

(buck) switching regulator, capable of driving a 3A load with

excellent line and load regulation. These devices are avail-

able in fixed output voltages of 3.3V, 5V, 12V, and an adjust-

able output version.

Features

n 3.3V, 5V, 12V, and adjustable output versions

n Adjustable version output voltage range, 1.2V to 37V

max over line and load conditions

This series of switching regulators is similar to the LM2596

series, with additional supervisory and performance features

added.

n Guaranteed 3A output current

n Available in 7-pin TO-220 and TO-263 (surface mount)

Package

n Input voltage range up to 40V

n 150 kHz fixed frequency internal oscillator

n Shutdown/Soft-start

Requiring a minimum number of external components, these

regulators are simple to use and include internal frequency

†

compensation , improved line and load specifications,

fixed-frequency oscillator, Shutdown/Soft-start, error flag de-

lay and error flag output.

n Out of regulation error flag

The LM2599 series operates at a switching frequency of 150

kHz thus allowing smaller sized filter components than what

would be needed with lower frequency switching regulators.

Available in a standard 7-lead TO-220 package with several

different lead bend options, and a 7-lead TO-263 Surface

mount package.

n Error output delay

n Low power standby mode, I_Qtypically 80 µA

n High Efficiency

n Uses readily available standard inductors

n Thermal shutdown and current limit protection

A standard series of inductors (both through hole and sur-

face mount types) are available from several different manu-

facturers optimized for use with the LM2599 series. This fea-

ture greatly simplifies the design of switch-mode power

supplies.

Applications

n Simple high-efficiency step-down (buck) regulator

n Efficient pre-regulator for linear regulators

n On-card switching regulators

n Positive to Negative converter

Other features include a guaranteed 4% tolerance on out-

put voltage under all conditions of input voltage and output

†

Note: Patent Number 5,382,918.

load conditions, and 15 on the oscillator frequency. Ex-

ternal shutdown is included, featuring typically 80 µA

Typical Application (Fixed Output Voltage Versions)

DS012582-1

SIMPLE SWITCHER^®and Switchers Made Simple^®are registered trademarks of National Semiconductor Corporation.

DS012582

www.national.com

12 3 4 5 6 7...31

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与LM2599T-ADJ相关器件

型号	品牌	获取价格	描述	数据表
LM2599T-ADJ/NOPB	TI	获取价格	LM2599 SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator
LM259X-L1	PULSE	获取价格	Tested and recommended by National Semiconductor Base material meets flammability requirem
LM259X-L1	PCA	获取价格	Surface Mount Power Inductor
LM259X-L10	PULSE	获取价格	Tested and recommended by National Semiconductor Base material meets flammability requirem
LM259X-L10	PCA	获取价格	Surface Mount Power Inductor
LM259X-L11	PULSE	获取价格	Tested and recommended by National Semiconductor Base material meets flammability requirem
LM259X-L11	PCA	获取价格	Surface Mount Power Inductor
LM259X-L12	PULSE	获取价格	THT/SMT POWER INDUCTORS Toroid - Designed for
LM259X-L12	PCA	获取价格	Surface Mount Power Inductor
LM259X-L13	PULSE	获取价格	Tested and recommended by National Semiconductor Base material meets flammability requirem

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