LM2831XMF/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2831XMF/NOPB is a high-frequency step-down DC-DC converter manufactured by Texas Instruments. It operates as a buck topology switcher with an adjustable output voltage range from 600 mV to 4.5 V and supports up to 1.5 A load current. The device features a fixed switching frequency of 1.6 MHz, enabling the use of compact external components. It functions within an input voltage range of 3 V to 5.5 V and maintains operation across a temperature range of -40°C to +125°C. Quiescent current is specified at 2.8 mA. The component is housed in a SOT-23-5 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-frequency buck converter for efficient voltage regulation
• Supports adjustable output voltages suitable for various digital loads
• Includes internal compensation to simplify circuit design
• Features thermal shutdown protection for operational safety

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring efficient power conversion
• Embedded systems needing stable low-voltage rails
• Industrial control modules operating in wide temperature ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the NOPB suffix to ensure lead-free compliance and specific packaging configuration. Confirm that the SOT-23-5 footprint matches your PCB layout requirements. Check datasheet specifications for thermal performance under maximum load conditions. Ensure input voltage sources remain within the 3 V to 5.5 V operational limits during all transient states.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when space constraints necessitate a small SOT-23-5 package while maintaining 1.5 A output capability. The 1.6 MHz switching frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 2.8 mA quiescent current impact on standby power consumption. Verify that the required output voltage falls within the 600 mV to 4.5 V adjustable range defined by the feedback network.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2831 series of high-frequency step-down converters. It shares functional similarities with other members like the LM2831ZSD/NOPB but differs in package type and switching frequency characteristics. The series is designed for applications requiring compact solutions with robust performance in portable and industrial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2831ZSD/NOPB offers similar electrical performance in a WSON-6 package with a different switching frequency.