LM2675

更新时间： 2024-02-21 03:03:33

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
30页	1467K
描述
LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage

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LM2675 技术参数

生命周期：	Transferred	包装说明：	DIP,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.55
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	40 V
最小输入电压：	6.5 V	标称输入电压：	12 V
JESD-30 代码：	R-PDIP-T8	长度：	10.16 mm
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-40 °C
最大输出电流：	2.2 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP	封装形状：	RECTANGULAR
封装形式：	IN-LINE	认证状态：	Not Qualified
座面最大高度：	3.556 mm	表面贴装：	NO
切换器配置：	BUCK	最大切换频率：	275 kHz
温度等级：	AUTOMOTIVE	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
宽度：	7.62 mm	Base Number Matches：	1

LM2675 数据手册

LM2675

www.ti.com

SNVS129E –MAY 2004–REVISED JUNE 2005

LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage

Regulator

Check for Samples: LM2675

FEATURES

DESCRIPTION

The LM2675 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 1A 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.

234

•

Efficiency up to 96%

•

Available in 8-pin SOIC and PDIP Packages

and a 16-pin WSON Package

•

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

components, these regulators are simple to use and

include patented internal frequency compensation

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

frequency oscillator.

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

Versions

•

Adjustable Version Output Voltage Range:

1.21V to 37V

The LM2675 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.

±1.5% Max Output Voltage Tolerance Over

Line and Load Conditions

•

Ensured 1A Output Load Current

0.25Ω DMOS Output Switch

Wide Input Voltage Range: 8V to 40V

260 kHz Fixed Frequency Internal Oscillator

A family of standard inductors for use with the

LM2675 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.

TTL Shutdown Capability, Low Power Standby

Mode

•

Thermal Shutdown and Current Limit

Protection

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.

TYPICAL APPLICATIONS

•

Simple High Efficiency (>90%) Step-Down

(Buck) Regulator

•

Efficient Pre-Regulator for Linear Regulators

Positive-to-Negative Converter

To simplify the LM2675 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 is a registered trademark 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...30

中文翻译

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LM2675 替代型号

型号	品牌	替代类型	描述	数据表
LM43601	TI	功能相似	3.5V 至 36V、1A 同步降压转换器
LM46001	TI	功能相似	3.5 至 60V、1A 同步降压转换器
LM2575-N	TI	功能相似	LM1575/LM2575/LM2575HV SIMPLE SWITCHERÂ® 1A S

与LM2675相关器件

型号	品牌	获取价格	描述	数据表
LM2675_0506	NSC	获取价格	SIMPLE SWITCHER㈢ Power Converter High Efficie
LM2675_14	TI	获取价格	SIMPLE SWITCHERÂ® Power Converter High Effici
LM2675-12MDC	NSC	获取价格	IC 2.2 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or
LM2675-12MWC	NSC	获取价格	IC 2.2 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator
LM2675EP	NSC	获取价格	Enhanced Plastic SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regu
LM2675LD-12	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator
LM2675LD-12/NOPB	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR/MOS,LLCC,16PIN,PLASTIC
LM2675LD-12EP	NSC	获取价格	IC 2.2 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, DSO8, LLP-8, Switching Regulator
LM2675LD-3.3	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator
LM2675LD-5.0	TI	获取价格	LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage

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