LM2679T-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2679T-3.3/NOPB is a SIMPLE SWITCHER® 5A step-down voltage regulator manufactured by Texas Instruments. It operates with an input voltage range of 8 V to 40 V and provides a fixed 3.3 V output at up to 5 A. The device features a 260 kHz switching frequency, -40°C to +125°C operating temperature range, and TO-220-7 through-hole package. Quiescent current is 4.2 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated adjustable current limit for enhanced protection
• High efficiency exceeding 90% under typical conditions
• Built-in thermal shutdown and soft-start functionality

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in industrial systems
• Power supplies for embedded controllers
• Battery-powered equipment requiring high current

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free RoHS compliance. Confirm the TO-220-7 package matches your thermal design requirements. Ensure the 3.3V fixed output aligns with your load specifications before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part for applications needing robust 5A output in a through-hole format. Consider the LM2679SDX-3.3/NOPB if surface mount is preferred. Verify input voltage stays within the 8V to 40V range for optimal performance.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2679 series of SIMPLE SWITCHER regulators. Designed for high-current buck conversion. Offers reliable performance in automotive and industrial environments. Provides a cost-effective solution for standard voltage rails.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2679T-3.3/NOPB is the direct equivalent without the NOPB suffix. LM2679T-5.0/NOPB offers different fixed output voltage. LM2679T-ADJ/NOPB provides adjustable output flexibility.