The Recom Power DC DC Converters ROF-78E3.3-0.5SMD-R is a reliable and efficient DC-DC converter designed to provide a regulated 3.3V output voltage at 500mA. This converter is ideal for applications that require a stable output voltage, such as powering microcontrollers, sensors, and other low-power devices. It features a wide input voltage range of 4.5V to 28V, making it suitable for a variety of input sources. The converter is also designed to be highly efficient, with a maximum efficiency of up to 95%. It is also designed to be compact and lightweight, making it easy to install in tight spaces. The ROF-78E3.3-0.5SMD-R is a reliable and efficient solution for powering low-power devices.