LM2679T-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2679T-ADJ/NOPB is a SIMPLE SWITCHER® 5A step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 8 V to 40 V and provides an adjustable output voltage from 1.23 V to 37 V. The device features a fixed switching frequency of 260 kHz and supports up to 5 A output current. It utilizes a TO-220-7 through-hole package, ensuring robust thermal performance for high-current applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch capable of driving loads up to 5 A
• Fixed 260 kHz switching frequency enables the use of compact external components
• Adjustable current limit protects against short circuits and overloads
• Internal thermal shutdown circuitry safeguards the device during overheating

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulators for post-LDO linear regulators
• Efficient battery-powered systems requiring step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) to confirm lead-free status and RoHS compliance. Ensure the TO-220-7 through-hole package matches your PCB footprint requirements. Confirm that the adjustable output configuration aligns with your external resistor network design needs before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-current buck converter is required in a through-hole package. The adjustable output version allows flexibility for various voltage rails. Consider the 260 kHz frequency for balancing efficiency and component size. Verify thermal management capabilities given the 5 A continuous current rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2679 series of SIMPLE SWITCHER regulators. It shares core architecture with other variants like the LM2679S-ADJ but differs in packaging. The series is designed for high-efficiency DC/DC conversion with integrated protection features, serving as a robust solution for industrial and commercial power supplies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2679SD-ADJ/NOPB offers identical electrical specifications in a surface-mount VSON-14 package. LM2679S-ADJ/NOPB provides the same functionality in a TO-263-7 package. Verify pinout compatibility and thermal dissipation requirements when substituting between these package types.