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
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