LM2831XMFX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831XMFX is a high-frequency step-down DC-DC regulator manufactured by Texas Instruments. It operates with a switching frequency of 1.6 MHz and delivers an output current of 1.5 A. The device supports an input voltage range from 3 V to 5.5 V, providing an adjustable output voltage between 600 mV and 4.5 V. It features a quiescent current of 2.8 mA and functions within a temperature range of -40°C to +125°C. The component utilizes a SOT-23-5 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a synchronous buck converter topology for efficient power conversion
• Includes internal compensation and soft-start circuitry to simplify external component requirements
• Features thermal shutdown protection to safeguard the device under overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries
• General-purpose point-of-load regulation in compact electronic designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against official documentation to confirm pinout compatibility and RoHS status. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference manufacturer datasheets for any recent design changes or lifecycle notices before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for stepping down 3V to 5.5V inputs to lower voltages up to 1.5A. The 1.6 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the SOT-23-5 package constraints for thermal management and PCB space availability in dense layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2831 family of high-frequency load-step-down regulators. It shares functional similarities with the LM2830 and LM2832 series but is distinguished by its specific 1.5A current rating and 1.6 MHz operating frequency. The family targets applications requiring small form factors and high efficiency in portable electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.