LM2831XSD-NS

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831XSD-NS is a high-frequency step-down DC-DC regulator manufactured by National Semiconductor. It provides a maximum output current of 1.5A with an input voltage range of 3V to 5.5V and adjustable output voltages from 600mV to 4.5V. The device operates at a switching frequency of 1.6MHz, enabling the use of small external components. It features a WSON-6 surface-mount package and supports an operating temperature range of -40°C to 125°C (TJ).

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a synchronous buck converter topology for efficient power conversion.
• Utilizes current-mode control architecture for stable regulation under varying load conditions.
• Includes integrated shutdown functionality to minimize quiescent current consumption during inactive states.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices requiring compact power solutions.
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries.
• Industrial control modules needing regulated low-voltage power supplies.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin carefully, as National Semiconductor was acquired by Texas Instruments. Confirm that the specific suffix 'NS' aligns with your supply chain requirements and quality standards. Ensure compatibility with RoHS directives if applicable to your region. Cross-reference datasheet revisions to confirm pinout consistency with existing designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact footprint is required for 1.5A loads within a 3V to 5.5V input window. The 1.6MHz switching frequency allows for smaller inductors compared to lower-frequency alternatives. Consider thermal performance in the WSON-6 package if ambient temperatures approach the upper limit of the specified operating range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2831 family of high-frequency step-down regulators. The series includes variants such as LM2831ZSD/NOPB and LM2831XMFX, which share similar electrical characteristics but may differ in packaging or specific manufacturing lot codes. The family is designed for applications demanding high efficiency and minimal board space.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2831ZSD/NOPB is a confirmed substitute from Texas Instruments offering identical electrical specifications. LM2831XMFX serves as another compatible alternative within the same product line. Verify package dimensions and pin assignments before substituting to ensure mechanical fit.