Datasheet > LM2596TV-12

LM2596TV-12

更新时间： 2022-11-13 19:13:00

品牌	Logo	应用领域
其他 - ETC		稳压器开关
页数	文件大小	规格书
11页	693K
描述
3.0A, 150Khz, Step-Down Switching Regulator

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LM2596TV-12 数据手册

LM2596

3.0A, 150Khz, Step-Down Switching Regulator

FEATURES

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

Adjustable Version Output Voltage Range, 1.23 to 37V

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

Guaranteed 3.0A Output Current

TO-220

Wide Input Voltage Range

Requires Only 4 External Components

150Khz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby Mode

High Efficiency

TO-220V

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

Moisture Sensitivity Level(MSL) Equals1

TO-263(D2)

Applications

Simple High-Efficiency Step-Down(Buck) Regulator

Efficient Pre-Regulator for Linear Regulators

On-Card Switching Regulators

Positive to Negative Converter(Buck-Boost)

Negative Step-Up Converters

1. Vin

2. Output

3. Ground

4. Feedback

5. On/Off

Power Supply for Battery Chargers

DESCRIPTION

ORDERING INFORMATION

The LM2596 series of regulators are monolithic integrated

Device

LM2596T-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 3.0A 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.

LM2596T-X.X

LM2596TV-X.X LM2596T-X.X

LM2596R LM2596R-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 LM2576 are offered

by several different inductor manufacturers.

Since the LM2596 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 LM2596 are

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

switch-mode power supplies. The LM2596 features include a guaranteed +/- 4% tolerance

on output voltage within specified input voltages and output load conditions, and +/-15% on the

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

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

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

HTC

Oct 2004 - Rev 0

12 3 4 5 6 7...11

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