LM2678SDX-5.0 - Texas Instruments

Manufacturer Part Number

LM2678SDX-5.0

Manufacturer

Texas Instruments

Introduction

Step-down voltage regulator in SIMPLE SWITCHER® series designed for power management

Product Features and Performance

Step-down (Buck) regulator topology

Fixed output voltage configuration

Single output channel

Surface mount package

Non-synchronous rectification

High efficiency and thermal performance

Features SIMPLE SWITCHER® ease of use

Product Advantages

Handles wide input voltage range from 8V to 40V

Provides stable 5V output up to 5A current

Operates at 260kHz switching frequency for good balance between efficiency and component size

Extended operating temperature range from -40°C to 125°C

Compact 14-VDFN exposed pad package for efficient heat dissipation

Key Technical Parameters

Voltage Input (Min): 8V

Voltage Input (Max): 40V

Voltage Output (Min/Fixed): 5V

Current Output: 5A

Switching Frequency: 260kHz

Operating Temperature Range: -40°C to 125°C

Quality and Safety Features

Built-in thermal shutdown and current limit protections

Overvoltage and undervoltage lockout features

Compatibility

Compatible with a variety of input sources within the specified voltage range

Supports diverse applications requiring a fixed 5V supply

Application Areas

Industrial power supplies

Consumer electronics

Telecommunications equipment

Computing peripherals

Product Lifecycle

Obsolete status

Potential for availability of replacements or upgrades may exist depending on stock status and newer alternates from manufacturer

Several Key Reasons to Choose This Product

Reliable performance in a wide range of input voltages

High output current capacity suitable for demanding applications

Easy to implement in designs due to SIMPLE SWITCHER® feature set

Robust thermal and electrical protection features enhance longevity

Availability of technical documentation and support from Texas Instruments despite obsolescence