LM2831ZMFX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831ZMFX/NOPB is a high-frequency step-down DC-DC 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 output current of 1.5 A and utilizes a fixed switching frequency of 3 MHz. It features a quiescent current of 4.3 mA and functions within a temperature range of -40°C to +125°C. The component is housed in a SOT-23-5 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck converter topology for efficient voltage step-down applications
• High switching frequency operation enabling compact external component sizing
• Adjustable output voltage capability within specified limits
• Operational stability across extended industrial temperature ranges

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices
• Embedded systems requiring regulated low-voltage power rails
• Industrial control modules with wide input voltage variations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix ZMFX against your schematic requirements, as package variants exist within the family. Confirm RoHS compliance status through official documentation before integration. Ensure thermal management strategies align with the SOT-23-5 package limitations under full load conditions. Cross-reference pinouts with the latest datasheet revision to avoid layout errors during PCB design implementation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for 3V to 5.5V input systems needing up to 1.5A. The 3MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the SOT-23-5 footprint constraints and thermal dissipation capabilities relative to your enclosure design. Verify that the 4.3mA quiescent current meets standby power specifications for the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2831 series of high-frequency DC-DC regulators. The series includes variants with different packages such as WSON-6 and standard SOT-23-5. The ZMFX suffix specifically denotes the SOT-23-5 surface-mount package configuration. These regulators are designed for space-constrained portable electronics and embedded applications requiring efficient power conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2831YMFX/NOPB offers similar electrical characteristics but operates at a 550 kHz switching frequency, which may require larger passive components. LM2831ZSD/NOPB provides identical performance metrics but utilizes a WSON-6 package, necessitating a different PCB footprint. Verify pin compatibility and thermal performance when substituting these variants.