LM2576T-5.0P+ – NATIONAL SEMICONDUCTOR

The National Semiconductor LM2576T-5.0P+ is a monolithic integrated circuit ideally suited for simple and efficient step-down (buck) switching regulator applications. This specific variant delivers a fixed 5.0V output with a robust 3A current rating, making it suitable for powering digital logic, microcontrollers, and other low-voltage systems. Encased in a TO-220 through-hole package, it facilitates easy mounting and heatsinking for enhanced thermal performance. Its internal compensation network minimizes external component count, simplifying design and reducing BOM cost. The device operates reliably over an operating temperature range of –40°C to 125°C, ensuring stable performance in demanding environments. The LM2576T-5.0P+ offers a significant advantage over linear regulators due to its higher efficiency, especially at higher input voltages, minimizing power dissipation and extending battery life in portable applications. Its built-in thermal shutdown and current limiting features provide added protection.