LM3578AN

更新时间： 2024-10-31 12:05:11

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关
页数	文件大小	规格书
30页	1641K
描述
LM2578A/LM3578A Switching Regulator

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LM3578AN 数据手册

LM2578A, LM3578A

www.ti.com

SNVS767E –AUGUST 2000–REVISED APRIL 2013

LM2578A/LM3578A Switching Regulator

Check for Samples: LM2578A, LM3578A

FEATURES

DESCRIPTION

The LM2578A is a switching regulator which can

•

Inverting and Non-Inverting Feedback Inputs

1.0V Reference at Inputs

easily be set up for such DC-to-DC voltage

conversion circuits as the buck, boost, and inverting

configurations. The LM2578A features a unique

comparator input stage which not only has separate

pins for both the inverting and non-inverting inputs,

but also provides an internal 1.0V reference to each

input, thereby simplifying circuit design and p.c. board

layout. The output can switch up to 750 mA and has

output pins for its collector and emitter to promote

design flexibility. An external current limit terminal

may be referenced to either the ground or the V_in

terminal, depending upon the application. In addition,

the LM2578A has an on board oscillator, which sets

Operates from Supply Voltages of 2V to 40V

Output Current up to 750 mA, Saturation Less

than 0.9V

•

Current Limit and Thermal Shut Down

Duty Cycle up to 90%

APPLICATIONS

•

Switching Regulators in Buck, Boost,

Inverting, and Single-Ended Transformer

Configurations

the switching frequency with

a single external

capacitor from <1 Hz to 100 kHz (typical).

•

Motor Speed Control

Lamp Flasher

The LM2578A is an improved version of the LM2578,

offering higher maximum ratings for the total supply

voltage and output transistor emitter and collector

voltages.

Connection Diagram

Figure 1. PDIP/SOIC Package

See Package Number D0008A or P0008E

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.

All 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

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LM3578AN 替代型号

型号	品牌	替代类型	描述	数据表
LM3578AN/NOPB	TI	类似代替	Switching Regulator 8-PDIP 0 to 125
LM3578AN	NSC	功能相似	Switching Regulator

与LM3578AN相关器件

型号	品牌	获取价格	描述	数据表
LM3578AN/NOPB	TI	获取价格	Switching Regulator 8-PDIP 0 to 125
LM3578H	ETC	获取价格	Voltage-Mode SMPS Controller
LM3578H/A+	ETC	获取价格	Voltage-Mode SMPS Controller
LM3578M	ETC	获取价格	Voltage-Mode SMPS Controller
LM3578N	ETC	获取价格	Voltage-Mode SMPS Controller
LM3578N/A+	ETC	获取价格	Voltage-Mode SMPS Controller
LM3578N/B+	ETC	获取价格	Voltage-Mode SMPS Controller
LM358	TAITRON	获取价格	Dual Operational Amplifier
LM358	DIODES	获取价格	LOW POWER DUAL OPERATIONAL AMPLIFIERS
LM358	MOTOROLA	获取价格	DUAL DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS

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