LM2831XMFX - Texas Instruments

Manufacturer Part Number

LM2831XMFX

Manufacturer

Texas Instruments

Introduction

The LM2831XMFX is a highly efficient, small, and lightweight step-down (buck) converter that is ideal for portable applications. It is designed to convert higher DC voltage to a lower DC voltage with high efficiency.

Product Features and Performance

Step-down (Buck) topology

Adjustable output voltage ranging from 0.6V to 4.5V

Supports input voltage from 3V to 5.5V

Capable of delivering up to 1.5A of output current

High switching frequency of 1.6MHz allows for smaller external components

Operates over a wide temperature range of -40°C to 125°C

Surface Mount device, encapsulated in a SOT-23-5 package

Product Advantages

High efficiency conversion reduces energy loss

Compact size suitable for space-constrained applications

Enables design flexibility with adjustable output voltage

High-frequency operation allows for the use of small inductors and capacitors, reducing overall board space

Robust thermal performance for reliability in various operating conditions

Key Technical Parameters

Voltage Input (Min): 3V

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 0.6V

Voltage Output (Max): 4.5V

Current Output: 1.5A

Frequency Switching: 1.6MHz

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

Package / Case: SC-74A, SOT-753

Quality and Safety Features

Over-temperature protection for safe operation

Stability under a wide range of input and output conditions

Compatibility

Suitable for a broad range of voltage regulation applications

Compatible with variety of ceramic, tantalum, and electrolytic capacitors

Application Areas

Portable electronics

Battery-powered devices

Low-voltage power supplies

Energy-efficient power conversions in consumer and industrial electronics

Product Lifecycle

Obsolete: Users should seek replacements or upgrades

Check with manufacturer for recommended alternatives

Several Key Reasons to Choose This Product

High efficiency and small size make it ideal for portable and compact designs

Flexible and adaptable output voltage for a wide range of applications

High reliability under extended operating temperatures and conditions

Texas Instruments' reputation for quality and support in power management solutions

Despite its obsolescence, suitable for designs where space and efficiency are critical, and where newer alternatives may not fit