LM2574N-3.3 - Texas Instruments

Manufacturer Part Number

LM2574N-3.3

Manufacturer

Texas Instruments

Introduction

The LM2574N-3.3 is part of Texas Instruments’ SIMPLE SWITCHER® series and is a step-down voltage regulator designed to provide a fixed 3.3V output from a wider input voltage range.

Product Features and Performance

Step-Down Buck Regulator

Fixed 3.3V Output Voltage

500mA Output Current

4V to 40V Input Voltage Range

52kHz Switching Frequency

Through Hole Mounting

Operating Temperature Range -40°C to 125°C

Product Advantages

High Efficiency due to Buck Topology

Easy to Use with Minimal External Components

Thermal Shutdown and Current Limit Protection for Safety

High Reliability and Long Operating Temperature Range

Key Technical Parameters

Input Voltage Min 4V

Input Voltage Max 40V

Output Voltage 3.3V

Output Current 500mA

Switching Frequency 52kHz

Number of Outputs 1

Operating Temperature Range -40°C to 125°C

Quality and Safety Features

Over-Temperature Protection

Current Limit Protection

Self-Protected Against Overloads

Compatibility

Compatible with Through Hole Mounting

Designed for use with 8-PDIP Package

Application Areas

Consumer Electronics

Telecommunication Infrastructure

Computing Systems

Industrial and Medical Equipment

Product Lifecycle

Obsolete

Replacements or Upgrades may be available - consult manufacturer for alternatives

Several Key Reasons to Choose This Product

Proven SIMPLE SWITCHER® Design for Easy Implementation

Robust Thermal and Current Limiting Safeguards for Reliability

Versatile Input Voltage Range Suitable for Various Applications

Fixed Output Reduces External Component Count

Well Suited for Cost-Sensitive and Compact Size Power Supplies