LM2679T-3.3 - Texas Instruments

Manufacturer Part Number

LM2679T-3.3

Manufacturer

Texas Instruments

Introduction

The LM2679T-3.3 is a robust and efficient step-down DC-DC voltage regulator part of the SIMPLE SWITCHER® series, designed to convert higher voltage down to 3.3V.

Product Features and Performance

Step-down (Buck) regulator topology

Output voltage fixed at 3.3V

Supports output currents up to 5A

Operates over a wide input voltage range from 8V to 40V

Switching frequency of 260kHz

Non-synchronous rectifier design

Operates across a wide temperature range from -40°C to 125°C

Through-hole mounting style for easy integration

Product Advantages

High efficiency for power-sensitive applications

Compact TO-220-7 package for simplified board layout

Simple external circuit design

Robust thermal performance enhances reliability

Key Technical Parameters

Voltage - Input (Min): 8V

Voltage - Input (Max): 40V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 5A

Frequency - Switching: 260kHz

Operating Temperature: -40°C ~ 125°C (TJ)

Mounting Type: Through Hole

Package / Case: TO-220-7 Formed Leads

Quality and Safety Features

Built-in thermal protection enhances safety and reliability

Compliance with Texas Instruments' manufacturing quality standards

Compatibility

Compatible with a wide range of input voltages for flexible system design

Application Areas

Power supplies

Computing systems

Networking equipment

Industrial controls

Product Lifecycle

Obsolete - Consider planning for replacements or upgrades as it is nearing discontinuation

Several Key Reasons to Choose This Product

High current output capability of up to 5A suitable for demanding applications

Wide input voltage range accommodates fluctuating power sources

Designed for straightforward integration and minimal external components

Reliability enhanced by operating temperature range and thermal protection

Part of Texas Instruments' reputable SIMPLE SWITCHER® series, ensuring quality and performance