Datasheet > LX2172CM-TR

LX2172CM-TR

更新时间： 2024-11-25 19:58:19

品牌	Logo	应用领域
美高森美 - MICROSEMI		开关
页数	文件大小	规格书
6页	689K
描述
Switching Regulator

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中文翻译

获取价格

技术参数
数据手册

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LX2172CM-TR 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.72
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	Base Number Matches：	1

LX2172CM-TR 数据手册

LX2172 / 73

1.25A HIGH-EFFICIENCY 100KH

SWITCHING

REGULATOR

R E L I M I N A R Y

A T A H E E T

H E

N F I N I T E

O W E R O F

I N N O V A T I O N

KEY FEATURES

DESCRIPTION

The LX2172/73 are fixed-frequency,

current-mode switching regulator integrated also be used in forward and inverting

circuits. These ICs contain all necessary converter configuations.

control circuitry plus a 1.25A on-board

transistor to design a complete DC:DC external clock for synchronization, and can

switching regulator with minimum external enter micropower operation when the VC

boost and flyback applications, but can

1.25A, 65V Internal Power

Switch

3V - 25V Input Voltage Range

Current-Mode Operation

Improved Internal Cycle-By-

Cycle Current Limiting

Thermal Shutdown

Less Than 10µA Quiescent

Current In Microprocessor

Shutdown Mode

The LX2172 can be connected to an

components.

pin is pulled low. The LX2173 has an

All functions are integrated into a single enable function, which permits extremely

IC, available in 8-pin DIP and SOIC or a 5- low micropower operation, consuming

pin TO-220 power package, making them under 10µA current when the ENABLE

extremely easy to design with and use. The pin is brought low

External Frequency

Synchronization Possible

100kHz Operating Frequency

LX2172/73 are optimized for

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

APPLICATIONS

Boost Converter

PRODUCT HIGHLIGHT

Laptop / Notebook Computers

Portable Equipment

Small Motor Applications

Flyback Converters

SEPIC CONVER TER

SING

THE LX2172

Input 6-24V, Output 7V, 300mA

V_IN

6-24V _DC

Output

300mA

Part #

Pin 4 Connection

C₂

330 µF

LX2172

SYNC Input

Low µPower Mode

(Hi ENABLE)

1mH

LX2173

C₁

C₃

1N5817

C_OUT

220 µF

22µF

0.1µF

GND

13.7k

V_C

V_SW

C₄

0.47 µF

1mH

SYNC

V_IN

(See Note 1)

C_DECOUPLE

0.47 µF

3.0k

100

Note 1: SYNC Pin Requirements:

A) F_MAX= 200kHz

B) TTL Compatible Level

C) Pulse Width T Range - 0.1µs < T_P< 2.0µs

PACKAGE ORDER INFO

Plastic DIP

8-Pin

Plastic SOIC

Plastic TO-220

5-Pin

8-Pin

T_A(°C)

RoHS Compliant / Pb-free

Transition DC: 0503

RoHS Compliant / Pb-free

Transition DC: 0440

0 to 70

LX217xCM

LX217xCDM

LX217xCP

Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX2172CDM-TR)

I N

I N I T Y

I C R O E L E C T R O N I C S

I N C .

Rev. 0.4a ,2005-03-09

11861 WESTERN

VENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570

12 3 4 5 6

中文翻译

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与LX2172CM-TR相关器件

型号	品牌	获取价格	描述	数据表
LX2172CP	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, PSFM5, PLASTIC, TO-220
LX2172CP-TR	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, PSFM5, PLASTIC, TO-220
LX2172IDM	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, BIPolar, PDSO8, PLASTI
LX2172IDMT	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, PDSO8, PLASTIC, SOIC-8
LX2172IM	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, BIPolar, PDIP8, PLASTI
LX2172IP	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, BIPolar, PSFM5, PLASTI
LX2172MY	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, BIPolar, CDIP8, CERAMI
LX2173	MICROSEMI	获取价格	1.25A HIGH-EFFICIENCY 100KHZ SWITCHING REGULATOR
LX2173CDM	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, PDSO8, PLASTIC, SOIC-8
LX2173CDMT	MICROSEMI	获取价格	Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, BIPolar, PDSO8, PLASTI

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