LM2576D2TR4005 ON Semiconductor, LM2576D2TR4005 Datasheet

LM2576D2TR4005

Manufacturer Part Number

LM2576D2TR4005

Description

TO263-5

Manufacturer

ON Semiconductor

Datasheet

1.LM2576D2TADJ.pdf (28 pages)

Specifications of LM2576D2TR4005

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LM2576

3.0 A, 15 V, Step−Down

Switching Regulator

ideally suited for easy and convenient design of a step−down

switching regulator (buck converter). All circuits of this series are

capable of driving a 3.0 A load with excellent line and load regulation.

These devices are available in fixed output voltages of 3.3 V, 5.0 V,

12 V, 15 V, and an adjustable output version.

components to simplify the power supply design. Standard series of

inductors optimized for use with the LM2576 are offered by several

different inductor manufacturers.

efficiency is significantly higher in comparison with popular

three−terminal linear regulators, 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.

are available from several different manufacturers. This feature

greatly simplifies the design of switch−mode power supplies.

voltage within specified input voltages and output load conditions, and

±10% on the oscillator frequency (±2% over 0°C to 125°C). External

shutdown is included, featuring 80 mA (typical) standby current. The

output switch includes cycle−by−cycle current limiting, as well as

thermal shutdown for full protection under fault conditions.

Features

•

Applications

•

January, 2006 − Rev. 8

The LM2576 series of regulators are monolithic integrated circuits

These regulators were designed to minimize the number of external

Since the LM2576 converter is a switch−mode power supply, its

A standard series of inductors optimized for use with the LM2576

The LM2576 features include a guaranteed ±4% tolerance on output

Maximum Over Line and Load Conditions

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

Adjustable Version Output Voltage Range, 1.23 to 37 V ±4%

Guaranteed 3.0 A Output Current

Wide Input Voltage Range

Requires Only 4 External Components

52 kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby Mode

High Efficiency

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

Moisture Sensitivity Level (MSL) Equals 1

Pb−Free Packages are Available

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

Power Supply for Battery Chargers

See detailed ordering and shipping information in the package

dimensions section on page 24 of this data sheet.

See general marking information in the device marking

section on page 25 of this data sheet.

Heatsink surface (shown as terminal 6 in

case outline drawing) is connected to Pin 3

DEVICE MARKING INFORMATION

Heatsink surface connected to Pin 3

ORDERING INFORMATION

http://onsemi.com

1. V

2. Output

3. Ground

4. Feedback

5. ON/OFF

Publication Order Number:

D2T SUFFIX

CASE 936A

CASE 314D

T SUFFIX

CASE 314B

TV SUFFIX

TO−220

PAK

LM2576/D

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