LM2831XSDX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831XSDX is a high-frequency step-down DC-DC converter 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 and includes shutdown functionality. The component is rated for operation between -40°C and +125°C junction temperature, with a typical operating supply current of 2.8 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High-frequency buck topology enabling compact passive component sizing
• Adjustable output voltage capability within specified limits
• Integrated shutdown control for power management

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 low-voltage DC-DC conversion in space-constrained designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with design requirements. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Check for obsolescence notices as this part number may be discontinued or superseded by newer revisions such as the LM2831ZSD/NOPB. Ensure ordering specifications match the required packaging format.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for converting 3V to 5.5V inputs to lower regulated voltages. The 3 MHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider thermal performance and PCB layout constraints associated with the WSON-6 package. Verify that the required output current does not exceed the 1.5 A limit under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2831 family of high-frequency step-down converters. It shares functional similarities with other members like the LM2831YSD/NOPB but differs in switching frequency and package options. The family is designed for applications requiring efficient power conversion from single-cell battery sources. Related parts include variants with different frequencies or packages, such as the LM2831XMFX/NOPB.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the LM2831ZSD/NOPB. Other potential replacements within the same family include the LM2831YSD/NOPB and LM2831XMFX/NOPB, though switching frequencies and packages may vary. Verify pinout and electrical characteristics before substitution.