LM2576S-3.3 - Texas Instruments

Manufacturer Part Number

LM2576S-3.3

Manufacturer

Texas Instruments

Introduction

The LM2576S-3.3 is a fixed output voltage regulator part of Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion in power management applications.

Product Features and Performance

Fixed 3.3V output voltage

Step-down (Buck) topology

3A output current capability

Input voltage range from 4V to 40V

52kHz switching frequency

Non-synchronous rectifier

Operating temperature range from -40°C to 125°C

Surface mount package type

Product Advantages

Simplified circuit design with minimal external components

High efficiency due to step-down topology

Wide input voltage range suitable for various applications

Thermal shutdown and current limit for device protection

Capable of driving 3A loads with adequate heat sinking

Key Technical Parameters

Voltage - Input (Min): 4V

Voltage - Input (Max): 40V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 3A

Frequency - Switching: 52kHz

Quality and Safety Features

Built-in protection features including thermal shutdown and current limiting

Robust construction for high reliability

Compatibility

Compatible with various surface mount techniques

Universal standard for easy replacement TO-263 package

Application Areas

Consumer electronics

Telecommunications equipment

PC peripherals

Networking systems

Product Lifecycle

Obsolete product

Not recommended for new designs

Alternatives and replacement parts may be available

Several Key Reasons to Choose This Product

Industry-proven SIMPLE SWITCHER® design for reliability and simplicity

Highly efficient power conversion for energy savings

Suitable for a wide range of input voltages, offering flexibility in different electrical environments

Ease of integration into existing designs due to standard package

Extended operating temperature range suitable for industrial applications