LM2671LD-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671LD-ADJ/NOPB is a synchronous buck switching regulator IC manufactured by Texas Instruments. It provides an adjustable positive output voltage ranging from 1.21 V to 37 V with a maximum output current of 500 mA. The device operates within an input voltage range of 4.5 V to 40 V and features a fixed internal switching frequency of 260 kHz. It utilizes a 16-WFDFN package with an exposed pad for thermal management. The quiescent current is specified at 2.5 mA, and the component supports operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification to achieve high conversion efficiency across the load range.
• Features an onboard error amplifier and compensation network to simplify external component selection.
• Includes built-in thermal shutdown and current limit protection for robust operation under fault conditions.

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and tape/reel configuration against the manufacturer's latest datasheet before ordering. Confirm that the 16-WFDFN package footprint matches your PCB layout requirements. Ensure thermal design accounts for the exposed pad connection to maintain reliability within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact synchronous solution is required for moderate current applications up to 500 mA. The adjustable output allows flexibility for various rail voltages without changing the core controller. Consider the 260 kHz switching frequency for balancing component size and electromagnetic interference performance.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 family of simple switcher regulators. While standard versions like the LM2671N offer fixed outputs in smaller packages, the LM2671LD variant integrates the power switches internally in a DFN package for improved thermal performance and higher efficiency compared to non-synchronous alternatives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible replacements may include other LM2671 series variants with different output configurations or packages. Verify electrical specifications such as input voltage limits and thermal characteristics when substituting with similar synchronous buck regulators from other manufacturers.