LM2671M-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671M-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a high-efficiency 500mA step-down voltage regulator. It operates with an input voltage range of 4.5V to 40V and provides a fixed 5V output. The device integrates a 0.5A monolithic switching transistor and supports switching frequencies of either 260kHz or 525kHz. Designed for surface-mount applications, it utilizes an 8-pin SOIC PowerPAD package. The component ensures stable regulation with low external component count and includes thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5A monolithic switching transistor for compact design
• Supports fixed switching frequencies of 260kHz or 525kHz
• Includes internal thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Battery-powered equipment requiring efficient step-down conversion
• General-purpose 5V supply generation from higher voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and manufacturer documentation to confirm the exact switching frequency variant (260kHz vs 525kHz) intended for your design, as this affects external component selection. Ensure the SOIC PowerPAD footprint matches your PCB layout requirements. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards and RoHS compliance declarations.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an input voltage up to 40V with a maximum load current of 500mA. Consider the available switching frequency options based on inductor size constraints and EMI requirements. Verify that the thermal performance of the SOIC PowerPAD package meets the ambient temperature conditions of the target application without excessive heatsinking.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 SIMPLE SWITCHER family, which offers a complete solution for step-down DC/DC conversion. The series is characterized by high efficiency and minimal external component requirements. The LM2671M-5.0/NOPB specifically denotes the fixed 5.0V output version in the standard SOIC PowerPAD package, distinguishing it from adjustable variants or other output voltage options within the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2671MX-5.0/NOPB: Identical electrical specifications but housed in an MSOP package instead of SOIC PowerPAD.