The RO-053.3S is a 1W, single-output, unregulated DC/DC converter designed for general-purpose power isolation and voltage matching. It operates with a nominal 5V DC input to provide a 3.3V DC output at up to 303 mA with a typical efficiency of 75%. This converter features a standard 1kVDC/1s isolation, a wide industrial operating temperature range of -40°C to +85°C without derating, and is housed in a compact, fully encapsulated SIP4 package. Its industry-standard pinout makes it a reliable choice for various applications requiring an isolated and stable voltage source.