LM2671

更新时间： 2024-09-29 12:18:39

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
31页	1611K
描述
LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

LM2671 数据手册

LM2671

www.ti.com

SNVS008K –SEPTEMBER 1998–REVISED APRIL 2013

LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage

Regulator with Features

Check for Samples: LM2671

FEATURES

234

•

Efficiency up to 96%

DESCRIPTION

The LM2671 series of regulators are monolithic

integrated circuits built with a LMDMOS process.

These regulators provide all the active functions for a

step-down (buck) switching regulator, capable of

driving a 500mA load current with excellent line and

load regulation. These devices are available in fixed

output voltages of 3.3V, 5.0V, 12V, and an adjustable

output version.

•

Available in SOIC, 8-pin PDIP and WSON

Packages

Computer Design Software LM267X Made

Simple (version 6.0)

•

Simple and Easy to Design With

Requires Only 5 external Components

Uses Readily Available Standard Inductors

Requiring

minimum number of external

3.3V, 5.0V, 12V, and Adjustable Output

Versions

components, these regulators are simple to use and

include patented internal frequency compensation

(Patent Nos. 5,382,918 and 5,514,947), fixed

frequency oscillator, external shutdown, soft-start,

and frequency synchronization.

•

Adjustable Version Output Voltage Range:

1.21V to 37V

±1.5% Max Output Voltage Tolerance Over

Line and Load Conditions

The LM2671 series operates at a switching frequency

of 260 kHz, thus allowing smaller sized filter

components than what would be needed with lower

frequency switching regulators. Because of its very

high efficiency (>90%), the copper traces on the

printed circuit board are the only heat sinking needed.

•

Ensured 500mA Output Load Current

0.25Ω DMOS Output Switch

Wide Input Voltage Range: 8V to 40V

260 kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby

Mode

A family of standard inductors for use with the

LM2671 are available from several different

manufacturers. This feature greatly simplifies the

design of switch-mode power supplies using these

advanced ICs. Also included in the datasheet are

selector guides for diodes and capacitors designed to

work in switch-mode power supplies.

•

Soft-Start and Frequency Synchronization

Thermal Shutdown and Current Limit

Protection

APPLICATIONS

Other features include a ensured ±1.5% tolerance on

output voltage within specified input voltages and

output load conditions, and ±10% on the oscillator

frequency. External shutdown is included, featuring

typically 50 μA stand-by current. The output switch

includes current limiting, as well as thermal shutdown

for full protection under fault conditions.

•

Simple High Efficiency (>90%) Step-Down

(Buck) Regulator

•

Efficient Pre-Regulator for Linear Regulators

To simplify the LM2671 buck regulator design

procedure, there exists computer design software,

LM267X Made Simple (version 6.0).

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, WEBENCH are registered trademarks of Texas Instruments.

Windows is a registered trademark of Microsoft Corporation.

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.

12 3 4 5 6 7...31

中文翻译

下载PDF

LM2671 替代型号

型号	品牌	替代类型	描述	数据表
LMZ34202	TI	功能相似	采用 QFN 封装的 4.5V 至 42V、2A 降压电源模块
LM43600	TI	功能相似	SIMPLE SWITCHER 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage Converter
LM2597	TI	功能相似	LM2597/LM2597HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down

与LM2671相关器件

型号	品牌	获取价格	描述	数据表
LM2671_07	NSC	获取价格	SIMPLE SWITCHER㈢ Power Converter High Efficie
LM2671LD-12	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Fea
LM2671LD-12/NOPB	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR/MOS,LLCC,16PIN,PLASTIC
LM2671LD-3.3	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Fea
LM2671LD-5.0	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Fea
LM2671LD-5.0/NOPB	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR/MOS,LLCC,16PIN,PLASTIC
LM2671LD-ADJ	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Fea
LM2671LD-ADJ	TI	获取价格	LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage
LM2671LD-ADJ/NOPB	TI	获取价格	LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator
LM2671LDX-12	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Fea

与LM2671相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

25
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

22
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

22
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

34

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2671

LM2671 数据手册

LM2671 替代型号

与LM2671相关器件

与LM2671相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2671

LM2671 数据手册

LM2671 替代型号

与LM2671相关器件

与LM2671相关文章

您还可以找

您在本页遇到什么问题？