Datasheet > LM2575T

LM2575T

更新时间： 2024-09-16 11:34:07

品牌	Logo	应用领域
韩国泰进 - HTC		稳压器开关
页数	文件大小	规格书
13页	627K
描述
1A, 52kHz, Step-Down Switching Regulator

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中文翻译

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数据手册

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LM2575T 数据手册

1A, 52kHz, Step-Down Switching Regulator

LM2575

FEATURES

3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions

Adjustable Version Output Voltage Range, 1.23 to 37V

+/- 4% AG10 Maximum Over Line and Load Conditions

Guaranteed 1A Output Current

TO-220 PKG

Wide Input Voltage Range

Requires Only 4 External Components

52kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby Mode

High Efficiency

TO-220V PKG

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

Moisture Sensitivity Level 3

Applications

Simple High-Efficiency Step-Down(Buck) Regulator

Efficient Pre-Regulator for Linear Regulators

On-Card Switching Regulators

TO-263 PKG

Positive to Negative Converter(Buck-Boost)

Negative Step-Up Converters

Power Supply for Battery Chargers

1. Vin 2. Output 3. Ground

4. Feedback 5. On/Off

DESCRIPTION

The LM2575 series of regulators are monolithic integrated

ORDERING INFORMATION

Device

LM2575T-X.X

Marking

Package

TO-220

TO-220V

TO-263

circuits ideally suited for easy and convenient design of a

step-down switching regualtor(buck converter).

All circuits of this series are capable of driving a 1A load

with excellent line and load regulation. These devices are

available in fixed output voltages of 3.3V, 5.0V,12V, 15V,

and an adjustable output version.

LM2575T-X.X

LM2575TV-X.X LM2575T-X.X

LM2575R LM2575R-X.X

These regulatiors were designed to minimize the number of externalcomponents to simplify the

power supply design. Standard series of inductors optimized for use with the LM2575 are offered

by several different inductor manufacturers.

Since the LM2575 converter is a switch-mode power supply, its efficiency is significantly higher in

comparison with popular three-terminal limear reguators, especially with higher input voltages.

In many cases, the power dissipated is so low that no heatsink is required or its size could

be reduced dramatically. A standard series of inductors optimized for use with the LM2575 are

available from several different manufacturers. This feature greatly simplifies the design of

switch-mode power supplies. The LM2575 features include a guaranteed +/- 4% tolerance

on output voltage within specified input voltages and output load conditions, and +/-10% on the

oscillator frequency (+/- 2% over 0℃ to 125 ℃).

External shutdown is included, featuring 80 ㎂(typical) standby current. The output switch includes

cycle-bycycle current limiting, as well as thermal shutdown for full protection under fault conditions.

2008 - Ver. 1.0

HTC

− 1 −

12 3 4 5 6 7...13

中文翻译

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与LM2575T相关器件

型号	品牌	获取价格	描述	数据表
LM2575T-005G	ONSEMI	获取价格	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator
LM2575T-012G	ONSEMI	获取价格	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator
LM2575T-015	ONSEMI	获取价格	1.0 A, Adjustable Output Voltage, Step−Down Switching Regulator
LM2575T-015G	ONSEMI	获取价格	1.0 A, Adjustable Output Voltage, Step−Down Switching Regulator
LM2575T-12	TI	获取价格	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575T-12	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575T-12	MOTOROLA	获取价格	EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGUL
LM2575T-12	SEMTECH	获取价格	1A & 3A Miniconverter Switching Regulators
LM2575T-12	ONSEMI	获取价格	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator
LM2575T-12	UMW	获取价格	DC-DC芯片

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