LM2831XSD/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831XSD/NOPB is a high-frequency step-down DC-DC switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 3 V to 5.5 V and provides an adjustable output voltage from 600 mV to 4.5 V. The device supports a maximum load current of 1.5 A and utilizes a fixed switching frequency of 3 MHz. It features a WSON-6 package for surface-mount installation. The component functions within a junction temperature range of -40°C to +125°C and includes a shutdown feature to minimize quiescent current during standby modes.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-frequency buck converter topology for efficient voltage step-down conversion.
• Supports adjustable output voltages via external resistor feedback networks.
• Includes a dedicated shutdown pin to reduce power consumption in low-power states.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices requiring efficient power management
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Industrial control modules operating within standard automotive or industrial temperature ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and thermal characteristics. Ensure compatibility with existing PCB footprints, as the WSON-6 package requires precise soldering techniques. Confirm RoHS compliance status through the manufacturer's latest product change notifications before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting 3.3 V or 5 V sources to lower logic levels. The 3 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 1.5 A current limit when designing for peak load conditions to ensure stable operation without thermal throttling.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2831 family of synchronous buck converters designed for space-constrained applications. It shares functional similarities with other members like the LM2831ZSD/NOPB but differs in switching frequency and package variations. The series is intended for general-purpose power management in portable electronics where efficiency and size are critical design constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the LM2831ZSD/NOPB. Verify pinout compatibility and thermal performance before substitution. Other family members may require schematic adjustments due to differing switching frequencies or package dimensions.