LM2673SD-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2673SD-5.0/NOPB is a fixed-output buck switching regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It provides a regulated 5 V output with a maximum current capacity of 3 A. The device operates with an input voltage range from 8 V to 40 V and utilizes a 260 kHz switching frequency. Packaged in a 14-VSON (5x6 mm) surface-mount format, it supports junction temperatures between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch eliminates external component requirements for basic operation
• Fixed 5 V output configuration simplifies design implementation
• Internal current limit protects against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Input voltage step-down for digital logic circuits
• Power supply stages for industrial control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number includes the /NOPB suffix to ensure compliance with RoHS directives and lead-free manufacturing standards. Confirm the package designation matches the required 14-VSON footprint for PCB layout compatibility. Check datasheet revisions for any updates regarding thermal performance or recommended external component values before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output at up to 3 A is required within a compact surface-mount envelope. Ensure the input voltage remains within the specified 8 V to 40 V range for stable operation. Consider the 260 kHz switching frequency when designing input and output filter networks to manage electromagnetic interference and ripple voltage effectively.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2673 series of monolithic integrated DC-DC converters designed for high-efficiency step-down applications. The SIMPLE SWITCHER architecture integrates the controller, driver, and power MOSFET into a single package. This integration reduces solution size and simplifies the design process compared to discrete solutions requiring multiple external components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM2673SD-5.0/NOPBTR variant, which shares identical electrical characteristics but differs in tape-and-reel packaging. Verify pinout compatibility and thermal pad requirements when transitioning between different packaging formats within the same functional family.