Texas Instruments LM2576HV SIMPLE SWITCHER® 3A Step-Down Voltage Regulator LM2576HVSX-12

The LM2576HVSX-12 is a step-down (buck) switching voltage regulator capable of delivering a fixed output voltage of 12V at a maximum output current of 3A. It features a wide input voltage range, supporting up to 60V, making it suitable for various applications requiring high efficiency and reliability. The device incorporates internal frequency compensation and operates at a fixed frequency of 52 kHz, which simplifies the design process by minimizing the number of external components needed to achieve stable operation. This regulator is designed for high efficiency, reducing the need for large heat sinks, and in some cases, may not require any heat sink at all. It includes essential protection features such as thermal shutdown and cycle-by-cycle current limiting, ensuring safe operation under fault conditions. The LM2576HVSX-12 is packaged in a TO-263 form factor, facilitating easy integration into compact designs. This product is ideal for applications such as power supplies, on-card switching regulators, and as a pre-regulator for linear regulators.