厂商Texas Instruments 半导体集成电路 - IC LM2576S-5.0 数据手册，datasheet pdf下载

首页 > Texas Instruments > 半导体 > 集成电路 - IC > LM2576S-5.0

型号：	LM2576S-5.0
厂商：	Texas Instruments
分类：	半导体，集成电路 - IC
描述：	voltage regulators - switching regulators
PDF：	预览
报错收藏赞

Datasheet下载地址

本地下载 >> 厂商下载2 >> 第三方平台下载 >>

LM2576S-5.0的详细信息

Manufacturer：	Texas Instruments
Product Category：	Voltage Regulators - Switching Regulators
RoHS：	No
Mounting Style：	SMD/SMT
Package / Case：	TO-263-5
Brand：	Texas Instruments
Packaging：	Tube
Series：	LM2576
Factory Pack Quantity：	45
Type：	Voltage Converter

LM2576, L M2576HV

www.ti.com

SNVS107C –JUNE 1999–REVISED APRIL 2013

LM2576/LM2576HV Series SIMPLE S W I TCHER 3 A Step-Down Voltage Regulator

Check for Samples: LM2576 , LM2576HV

FEATURES

DESCRIPTION

The LM2576 series of regulators are monolithic

integrated circuits that provide all the active functions

for a step-down (buck) switching regulator, capable of

driving 3A load with excellent line and load regulation.

These devices are available in fixed output voltages

of 3.3V, 5V, 12V, 15V, and an adjustable output

version.

•

3.3V, 5V, 12V, 15V, and Adjustable Output

Versions

•

Adjustable Version Output Voltage

Range,1.23V to 37V (57V for HV Version) ±4%

Max Over Line and Load Conditions

•

Specified 3A Output Current

Wide Input Voltage Range, 40V Up to 60V for

HV Version

Requiring

minimum number of external

components, these regulators are simple to use and

include internal frequency compensation and a fixed-

frequency oscillator.

•

Requires Only 4 External Components

52 kHz Fixed Frequency Internal Oscillator

The LM2576 series offers

high-efficiency

TTL Shutdown Capability, Low Power Standby

Mode

replacement for popular three-terminal linear

regulators. It substantially reduces the size of the

heat sink, and in some cases no heat sink is

required.

•

High Efficiency

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit

Protection

A standard series of inductors optimized for use with

the LM2576 are available from several different

manufacturers. This feature greatly simplifies the

design of switch-mode power supplies.

•

P+ Product Enhancement Tested

APPLICATIONS

Other features include a specified ±4% tolerance on

output voltage within specified input voltages and

output load conditions, and ±10% on the oscillator

frequency. External shutdown is included, featuring

50 μA (typical) standby current. The output switch

includes cycle-by-cycle current limiting, as well as

thermal shutdown for full protection under fault

conditions.

•

Simple High-Efficiency Step-Down (Buck)

Regulator

•

Efficient Pre-Regulator for Linear Regulators

On-Card Switching Regulators

Positive to Negative Converter (Buck-Boost)

TYPICAL APPLICATION

(Fixed Output Voltage Versions)

Figure 1.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SIMPLE SWITCHER is a registered trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

LM2576S-5.0相关文档

Function Diagram: fbd_snvs107c

LM2576S-5.0应用笔记