LM2576SX-3.3 - Texas Instruments

Manufacturer Part Number

LM2576SX-3.3

Manufacturer

Texas Instruments

Introduction

A highly efficient, SIMPLE SWITCHER® step-down voltage regulator

Product Features and Performance

52 kHz switching frequency for good balance between efficiency and component size

Fixed 3.3V output voltage for common low-voltage applications

3A output current capability for higher power needs

Step-Down (Buck) topology for efficient down-conversion of input voltage

One output for simplicity in design

Product Advantages

Improves system efficiency

Reduces the need for heat sinks with a built-in switch

Wide input voltage range from 4V to 40V accommodates varied power supplies

Operating temperature range from -40°C to 125°C for robust performance in challenging environments

Key Technical Parameters

Input Voltage (Min): 4V

Input Voltage (Max): 40V

Output Voltage (Min/Fixed): 3.3V

Current - Output: 3A

Frequency - Switching: 52kHz

Synchronous Rectifier: No

Quality and Safety Features

Thermal shutdown and current-limit protections

Built-in safe operating area protection

Compatibility

Surface Mount TO-263-6, D2PAK (5 Leads + Tab), TO-263BA package for easy PCB integration

Non-synchronous rectifier for simpler design requirements

Application Areas

Power supplies

Consumer electronics

Telecommunications equipment

Computer systems

Product Lifecycle

Obsolete status, replacements or upgrade options may be limited

Further production and availability not guaranteed

Several Key Reasons to Choose This Product

High reliability with built-in protection features

Versatility in a wide range of applications and power supply conditions

Texas Instruments’ reputation for high-quality and durable components

Long track record of performance in industrial and consumer devices

Reduced external components due to integrated switching transistor