LM2671N-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671N-3.3/NOPB is a monolithic integrated circuit step-down switching voltage regulator from the LM2671 series, manufactured by Texas Instruments. It operates as a buck converter with a fixed 3.3 V output and a maximum output current of 500 mA. The device supports an input voltage range of 8 V to 40 V and utilizes a through-hole PDIP-8 package. Key electrical parameters include a switching frequency of 260 kHz, a quiescent current of 2.5 mA, and an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 3.3 V output configuration for simplified design
• Integrated power switch capable of delivering up to 500 mA
• Internal compensation ensures stability without external components

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in industrial systems
• Power supply stages for embedded controllers
• Battery-powered equipment requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the suffix 'NOPB' confirms lead-free and RoHS compliance status according to the manufacturer's latest documentation. Ensure the ordering part number matches the specific through-hole PDIP-8 package variant rather than surface-mount alternatives within the same family. Cross-reference the datasheet revision to confirm thermal and electrical specifications align with your system requirements before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from an input voltage between 8 V and 40 V. The through-hole PDIP-8 package is suitable for prototyping or applications where manual assembly is preferred over SMD processes. Consider the 260 kHz switching frequency for balancing component size and efficiency against noise sensitivity in the target application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 family of simple switcher regulators designed for high-efficiency DC-DC conversion. The family includes adjustable and fixed voltage variants in both surface-mount and through-hole packages. The LM2671 series is characterized by its internal feedback loop and power switch, reducing the external component count compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2671N-ADJ/NOPB provides adjustable output instead of fixed 3.3 V. LM2671M-3.3/NOPB offers the same electrical performance but in a surface-mount SOIC-8 package.