The ON Semiconductor LM2576T-012 is a versatile and robust voltage regulator, designed to cater to a wide array of applications requiring a reliable power management solution. This component is part of the LM2576 series, which are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator capable of driving a 3A load with excellent line and load regulation.

Key Features

• Output Voltage: The LM2576T-012 is designed to deliver a fixed output voltage of 12V, making it suitable for applications that require a regulated supply of 12 volts.
• Output Current: It can provide a maximum output current of 3A, which is sufficient for a variety of medium-power applications.
• High Efficiency: The device offers high efficiency, which can be up to 90%, reducing the heat generated and improving system reliability.
• Thermal Shutdown: It includes a thermal shutdown feature that protects the device from damage due to overheating.
• Current Limiting: Built-in current limiting is provided to protect the regulator from excessive input currents.
• Voltage Protection: The LM2576T-012 also includes output over-voltage protection, safeguarding connected components from potential damage.
• Package: It comes in a TO-220 package, which is known for its ease of use in a wide range of circuit designs.

Applications

The LM2576T-012 is ideal for use in a variety of electronic applications, including but not limited to:

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converter (Buck-Boost)

Summary

The ON Semiconductor LM2576T-012 is a reliable and efficient solution for designers looking to implement a 12V step-down voltage regulator in their systems. Its robust feature set, including thermal protection, current limiting, and high efficiency, make it a go-to choice for a range of power management applications.