LM2676LD-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676LD-12 is a SIMPLE SWITCHER® step-down voltage regulator manufactured by National Semiconductor. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output at up to 3A. The device utilizes a 260kHz switching frequency and features internal compensation for minimal external component requirements. It is housed in a 14-VSON (6x5) package with an exposed pad, supporting junction temperatures from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch rated for 3A continuous load current
• Fixed 12V output configuration with internal frequency compensation
• Operates from wide 8V to 40V input supply range
• High efficiency buck topology with low standby current

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Input stage conversion for industrial control equipment
• Power supply conditioning for communication infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LD' against the manufacturer's official documentation to confirm the exact package type and tape-and-reel specifications. Confirm availability status as this part number may be discontinued or superseded by newer revisions. Ensure the ordering information matches the required temperature grade and packaging format for your production line.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from a 40V maximum input source. The 3A current rating suits moderate power applications. Consider the 14-VSON package constraints for thermal management and PCB layout. Verify that the 260kHz switching frequency aligns with EMI requirements and inductor size constraints compared to lower-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2676 series of SIMPLE SWITCHER regulators, designed to simplify DC-DC converter design. The series offers various output voltages and packages. The LM2676LD variant specifically denotes the 14-VSON package option, distinguishing it from TO-263 or other form factors within the same functional family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2676SD-12 or LM2676SX-12 equivalents if different packaging is needed. Verify pin compatibility and thermal performance before substituting. Newer revisions may carry NOPB suffixes indicating lead-free compliance.