The LM2574HVN-3.3 is a DC-DC switching regulator integrated circuit (IC) from the SIMPLE SWITCHER series by National Semiconductor (TI). It is designed for step-down voltage regulation with a fixed output of 3.3V. The LM2574HVN-3.3 can handle a maximum output current of 500mA and has a wide input voltage range from 4V to 60V. It operates @ a switching frequency of 52kHz and is mounted through hole with an 8-DIP package. With a temperature range of -40°C to 125°C, it is suitable for applications that require stable and efficient power management. The LM2574HVN-3.3 is an active product in the market and is commonly used in electronic devices that require voltage regulation.