LM2671M-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671M-3.3/NOPB is a high-efficiency 500mA step-down voltage regulator from the LM2671 series by Texas Instruments. It operates with a fixed 3.3V output and supports input voltages up to 40V. The device features a switching frequency of 260kHz and draws a typical quiescent current of 2.5mA. It is housed in an SOIC-8 package and functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5A power switch for efficient buck conversion
• Includes internal frequency compensation for simplified design
• Features thermal shutdown protection for operational safety

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment power supplies
• General-purpose DC-DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free compliance and RoHS adherence. Confirm the M- variant corresponds to the SOIC-8 package type. Ensure the -3.3 designation matches the required 3.3V output specification. Cross-reference the manufacturer part number with official datasheets to validate electrical parameters before integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output at 500mA is required from higher input rails. The 260kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the SOIC-8 package for surface-mount assembly constraints and the wide operating temperature range for industrial environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 family of simple switcher regulators. These devices are designed to replace traditional linear regulators where efficiency and heat dissipation are concerns. The family offers various fixed output voltages and current ratings, providing a standardized solution for step-down applications across multiple industries.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2671M-ADJ/NOPB provides adjustable output instead of fixed 3.3V. LM2671M-5.0/NOPB offers a fixed 5.0V output. LM22671MR-5.0/NOPB is a similar regulator with a different package and higher switching frequency.