LM2671N-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671N-5.0 is a fixed-output step-down voltage regulator from the Texas Instruments SIMPLE SWITCHER family, designed for high-efficiency power conversion. It integrates a 0.5A switch and operates with an input voltage range of 4V to 40V to provide a stable 5V output. The device utilizes a buck topology with a typical switching frequency of 260kHz. It features low quiescent current of 2.5mA and supports operation within a temperature range of -40°C to +125°C. Packaged in an 8-pin PDIP for through-hole mounting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5A power switch for compact step-down regulation
• Operates over a wide 4V to 40V input voltage range
• Includes internal frequency compensation for minimal external component count
• Features thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient voltage stepping
• Industrial control system power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the package type matches your PCB requirements, as this part number specifies the PDIP-8 through-hole variant. Confirm the suffix indicates RoHS compliance and standard commercial grade. Ensure the supplier provides the official datasheet to validate the 260kHz switching frequency and 5V fixed output specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a through-hole solution is required for 5V generation from higher bus voltages up to 40V. It is suitable for applications needing moderate current up to 500mA with high efficiency. Consider the LM2671MX-5.0 if surface mount packaging is preferred instead of the PDIP form factor.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the LM2671 series of SIMPLE SWITCHER converters. It shares functional similarities with the LM2672 (1A) and LM2674 (adjustable), but offers a fixed 5V output optimized for lower current loads. The PDIP-8 package distinguishes it from the MSOP or SOIC variants available in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2671MX-5.0/NOPB: Surface mount alternative with identical electrical performance.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2671N-5.0?

The maximum input voltage is 40V.

Does this part include internal feedback resistors?

Yes, the -5.0 suffix indicates a fixed 5.0V output with internal feedback network.