BUY VI-250-CV https://www.utsource.net/itm/p/415059.html
Analog IC
The VI-250-CV is a DC-DC converter module from Vicor. It is a 250W, 48V input, 12V output module with an efficiency of up to 93%. It features a wide input voltage range, low ripple and noise, and a high power density. The module is designed for use in a variety of applications such as industrial, medical, and military. It is also suitable for use in distributed power architectures. The module is designed to meet the requirements of MIL-STD-704F, MIL-STD-461E, and MIL-STD-810G. It is also compliant with the RoHS directive. (For reference only)