LM2574M-3.3 - Texas Instruments

Manufacturer Part Number

LM2574M-3.3

Manufacturer

Texas Instruments

Introduction

The LM2574M-3.3 is part of Texas Instruments' SIMPLE SWITCHER® series and is a monolithic integrated circuit designed for non-synchronous buck (step-down) voltage regulation

Product Features and Performance

Non-synchronous step-down (buck) regulator

Fixed 3.3V output voltage

500mA output current capability

52kHz fixed switching frequency

Operates within a wide input voltage range of 4V to 40V

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

Thermal shutdown and current limit protection features

Product Advantages

Ease of use with minimal external components

High efficiency due to integrated circuits and optimized switching frequency

Built-in protection features enhance product reliability

Capability to operate across a wide temperature range for use in various environments

Key Technical Parameters

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Voltage - Input (Min): 4V

Voltage - Input (Max): 40V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 500mA

Frequency - Switching: 52kHz

Synchronous Rectifier: No

Mounting Type: Surface Mount

Package/Case: 14-SOIC

Quality and Safety Features

Thermal shutdown

Current limiting

Ensures safe operation under abnormal conditions

Compatibility

Designed for surface mount applications

Compatible with standard 14-SOIC footprint

Application Areas

Power supplies for consumer electronics

Networking and telecommunications equipment

Office and computing applications

Industrial controls

Product Lifecycle

Product Status: Obsolete

Potential for replacement or upgrade options might be limited

Several Key Reasons to Choose This Product

Simplified design process due to the SIMPLE SWITCHER® series feature set

Reduced BOM cost and space given the integrated components

Reliable performance from an established manufacturer with a history of quality products

Proven technology with safety features for robust operation in diverse applications