LM2673T-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2673T-ADJ/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, housed in a TO-220-7 through-hole package. It operates with an input voltage range of 8V to 40V and delivers up to 3A output current. The device features an adjustable output voltage ranging from 1.2V to 37V and switches at a fixed frequency of 260kHz. Designed for high efficiency, it includes integrated thermal shutdown and current limit protection. The component supports a junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch capable of delivering 3A load current
• Fixed 260kHz switching frequency reduces external component size
• Internal thermal shutdown and current limit protection circuits

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• High-efficiency pre-regulators for linear post-regulators
• Battery-powered systems requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free/RoHS compliance. Confirm the T suffix corresponds to the TO-220-7 through-hole package variant. Ensure the ADJ designation matches the required adjustable output configuration rather than a fixed voltage option. Cross-reference the manufacturer part number against official datasheets to confirm pinout compatibility.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust through-hole solution is required for high-current applications. The TO-220-7 package facilitates heat dissipation for continuous 3A loads. Choose the adjustable version if the system requires a specific output voltage not available in fixed variants. Verify that the 260kHz frequency aligns with electromagnetic interference constraints and inductor selection requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2673 series of SIMPLE SWITCHER regulators. It shares core architecture with surface-mount variants like the LM2673S-ADJ and other fixed-voltage models within the same family. The series is characterized by its simplicity, requiring minimal external components for operation while maintaining high efficiency across wide input voltage ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2673T-5.0/NOPB offers a fixed 5V output instead of adjustable functionality.