LM2831XMF

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831XMF is a high-frequency, synchronous step-down DC-DC regulator manufactured by Texas Instruments. It delivers an output current of 1.5 A with an adjustable output voltage range from 600 mV to 4.5 V. The device operates at a switching frequency of 1.6 MHz and accepts input voltages between 3 V and 5.5 V. It features a low quiescent current of 2.8 mA and functions within a temperature range of -40°C to +125°C. The component is housed in a compact SOT-23-5 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for improved efficiency in a small footprint
• Supports adjustable output voltage via external resistor divider
• Includes internal soft-start to limit inrush current during startup
• Features thermal shutdown protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring efficient power conversion
• Embedded systems with single-supply requirements
• Industrial control modules operating under varying load conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix (e.g., NOPB) against the datasheet to confirm RoHS compliance and specific tape-and-reel specifications. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference manufacturer documentation for any recent product change notifications or lifecycle status updates before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for step-down applications requiring up to 1.5 A. The 1.6 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the input voltage range and thermal performance relative to the expected ambient conditions and PCB layout constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2831 family of high-frequency buck regulators. It shares functional similarities with the LM2830 and LM2832 but offers specific current and frequency characteristics tailored for space-constrained designs. The series is designed for general-purpose power management in portable and industrial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

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