ON Semiconductor LM2576TV-5G Voltage Regulator

The LM2576TV-5G from ON Semiconductor is a highly efficient, monolithic integrated circuit designed for voltage regulation. It is a step-down voltage regulator that offers all the functions necessary for a buck (step-down) switching regulator capable of driving a 3A load with excellent line and load regulation. This regulator is remarkably simple to use, requiring only a few external components to set up a robust power supply circuit.

The LM2576TV-5G operates at a fixed output voltage of 5V, which is ideal for powering a wide range of devices and circuits that require a stable 5V supply. Its high efficiency (up to 90%) is due to the use of a simple ON/OFF switching mode, which minimizes the loss of energy during the power conversion process. This efficiency makes it suitable for applications such as power supplies for personal computers, office equipment, and industrial machinery where energy efficiency is a critical parameter.

With a wide input voltage range from 4V to 40V, the LM2576TV-5G can handle a variety of input sources, including higher voltage batteries and industrial power rails. This flexibility allows designers to use the same regulator in multiple applications, simplifying inventory management and reducing overall design complexity.

Key features of the LM2576TV-5G include:

• 3A output current capability
• Fixed 5V output voltage
• High efficiency up to 90%
• 52 kHz fixed frequency internal oscillator
• Thermal shutdown and current limit protection
• Requires minimal external components
• TO-220 package for easy heat sinking and mounting

Protection features such as thermal shutdown and current limit safeguard the device and the load from potential damage due to overheating or overcurrent conditions. This ensures long-term reliability and stability of the power supply circuit. The LM2576TV-5G is housed in a TO-220 package, which provides ample surface area for heat sinking and is easy to mount on a printed circuit board.

Whether you are designing a new power supply or retrofitting an existing one, the LM2576TV-5G from ON Semiconductor offers a straightforward and reliable solution for your 5V regulation needs.