LM2831ZMF

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831ZMF is a high-frequency step-down DC-DC switch regulator manufactured by Texas Instruments. It operates within 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 output current of 1 A with a single output configuration. It utilizes a Buck topology and features a switching frequency of 3 MHz. The component is housed in a SOT-23-5 package and is designed for surface-mount installation. It functions reliably across a temperature range of -40°C to +125°C, with an operating supply current of 2.8 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-frequency 3 MHz switching controller for compact passive component sizing.
• Provides adjustable output voltage regulation within a wide input voltage window.
• Includes thermal shutdown protection to ensure safe operation under overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices requiring efficient power conversion
• 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 specific suffix ZMF against the official datasheet to confirm the SOT-23-5 package variant. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles specified by the manufacturer. Confirm that the intended application load does not exceed the 1 A continuous output current rating. Check for any recent product change notifications regarding pinout or electrical characteristics updates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a small form factor is required alongside moderate current capabilities. The 3 MHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the thermal performance in the SOT-23-5 package if the ambient temperature approaches the upper operational limit. Evaluate the efficiency curve at the specific load current to ensure optimal battery life in portable applications.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2831 series represents a family of synchronous buck converters designed for space-constrained applications. The ZMF designation specifically identifies the SOT-23-5 package variant within this lineup. This series is part of Texas Instruments' portfolio of power management integrated circuits aimed at improving energy efficiency in mobile and industrial electronics. It complements other regulators offering different current ratings or packaging options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data through official manufacturer channels before considering alternative components.