LM2673T-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2673T-5.0/NOPB is a fixed-output buck converter 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 within an input voltage range of 8 V to 40 V and utilizes a buck topology at a switching frequency of 260 kHz. Designed for through-hole installation, it features a TO-220-7 package. The component supports a junction temperature range from -40 °C to +125 °C and includes integrated adjustable current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated adjustable current limit protects against overload conditions
• Fixed 5 V output eliminates external feedback resistor requirements
• High efficiency performance reduces thermal management needs
• Internal power switch simplifies circuit design

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in industrial equipment
• Power supply stages for embedded systems
• Battery-powered devices requiring step-down conversion
• General-purpose DC-DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free construction compliant with RoHS standards. Confirm the TO-220-7 through-hole package matches your PCB footprint requirements. Ensure the fixed 5 V output aligns with load specifications, as this variant lacks adjustable output options. Cross-reference the manufacturer part number to distinguish from surface-mount or adjustable variants within the same series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust through-hole solution is required for 3 A loads. The fixed 5 V output suits applications needing standard logic levels without external programming. Consider the 260 kHz switching frequency for balancing component size and EMI. Verify that the 40 V maximum input voltage accommodates source variations. Evaluate thermal dissipation capabilities based on the TO-220 package's heat sinking potential.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2673 series of monolithic DC-DC converters. It shares architectural similarities with other SIMPLE SWITCHER products but differs in package type and output configuration. The TO-220-7 form factor distinguishes it from surface-mount alternatives like the LM2673S or LM2673SD. It serves as a high-current alternative to lower-amperage regulators in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2673T-ADJ/NOPB offers adjustable output instead of fixed 5 V. LM2673S-5.0/NOPB provides the same electrical characteristics in a surface-mount TO-263 package. LM2677T-5.0/NOPB delivers higher current capability up to 5 A in a similar through-hole format.