Datasheet > LM2674M-ADJ

LM2674M-ADJ

更新时间： 2024-09-30 17:15:23

品牌	Logo	应用领域
友台半导体 - UMW		/
页数	文件大小	规格书
8页	1505K
描述
DC-DC芯片

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数据手册

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LM2674M-ADJ 数据手册

UMW

LM2674

DC-DC switching buck converter

■ Product Introduction

Top View SOP-8

LM2674 series is a DC/DC switching buck converter

controlled by a fixed frequency of 260kHz PWM.It is

mainly composed of internal frequency compensation,

fixed frequency oscillator, built-in overcurrent protection,

power switch control and other circuits. It can drive

500MA load with high efficiency, low ripple, good linearity

and load adjustment ability.Only a few external

components are needed to realize the function of DC/DC

voltage reduction and stabilization, which is very simple

and practical.PWM control circuit can adjust the duty

cycle from 0 according to the load To 100% to achieve

high work efficiency.It has an external enabling control

opening function, which can realize the controllable

switch between standby and work, making the application

more flexible.

■ Packaging form and pin function definition

■ Product features

Pinserial number

● Built in overtemperature shutdown function

● Built in overcurrent protection function

● Internal integrated efficient power switch

● Good linearity and load adjustment capability

definition

Function description

SOP-8

Boost capacitance terminal

Empty port

● ON/OFF pin with hysteresis function

● TTL shutdown capability

● high efficiency

Empty port

Feedbackcontrol terminal

Enable terminal

High=ON and low=OFF

Power supply ground terminal

ON/OFF

GND

● Simple periphery

● Wide input voltage range: 7V~40V

● Fixed output voltage: 3.3V, 5V, 12V,

Positive terminal of power

supply

VIN

● Adjustable output voltage range: 1.21V~37V

Power switch output terminal

(SW)

VSW

(adjustable)

● High precision output: ± 2%

● Fixed switching frequency: 260 kHz

● Maximum output current capacity: 500mA

● Minimum linear drop voltage drop: 1.5V

● Package form: SOP-8

■ Product use

● LCD and LCD TV

●

ADSL modem

LED lights, LED backlight

●

Digital photo frame

Telecommunication/network equipment

www.umw-ic.com

UTD Semiconductor Co.,Limited

12 3 4 5 6 7 8

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与LM2674M-ADJ相关器件

型号	品牌	获取价格	描述	数据表
LM2674M-ADJ/NOPB	TI	获取价格	LM2674 SIMPLE SWITCHERÂ® Power Converter High
LM2674MX-12	TI	获取价格	LM2674 SIMPLE SWITCHERÂ® Power Converter High
LM2674MX-12	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
LM2674MX-12/NOPB	TI	获取价格	LM2674 SIMPLE SWITCHERÂ® Power Converter High
LM2674MX-3.3	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
LM2674MX-3.3/NOPB	TI	获取价格	LM2674 SIMPLE SWITCHERÂ® Power Converter High
LM2674MX-5.0	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
LM2674MX-5.0/NOPB	TI	获取价格	LM2674 SIMPLE SWITCHERÂ® Power Converter High
LM2674MX-ADJ	NSC	获取价格	SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
LM2674MX-ADJ/NOPB	TI	获取价格	LM2674 SIMPLE SWITCHERÂ® Power Converter High