LM2671LD-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671LD-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output at up to 1A load current. The device integrates a 0.5A internal switch and utilizes a 260kHz switching frequency. It is housed in a 16-pin LLP package designed for low component count applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency 0.5A power switch to minimize external component requirements.
• Features fixed 12V output option for simplified design implementation.
• Includes thermal shutdown and current limit protection for robust operation.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient step-down conversion
• Industrial control systems operating from 24V or 48V buses

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific order corresponds to the LLP-16 plastic package variant. Confirm the suffix /NOPB indicates lead-free and RoHS compliance as per manufacturer specifications. Ensure the source document explicitly identifies this part number within the SIMPLE SWITCHER family datasheet to validate technical parameters.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an 8V to 40V input rail with moderate current demands. It is suitable for designs prioritizing simplicity and low external component count over adjustable output flexibility. Consider the 260kHz frequency trade-off between size and efficiency compared to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2671 series of SIMPLE SWITCHER regulators, which are known for their ease of use and high efficiency. The series includes various output voltage options and adjustable versions, all sharing the same core architecture and protection features. The LLP package allows for compact PCB layouts while maintaining adequate thermal performance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LM2671 variants with different fixed output voltages (e.g., LM2671LD-3.3/NOPB) if the voltage requirement changes. For adjustable output needs, the LM2671LDX-ADJ/NOPB serves as a functional equivalent within the same package and electrical specification envelope.