This isolated DC-DC converter is compact and low-cost, making it a great choice for an on-board 12V DC-DC converter.
The converter is configured to output a constant 13.8V. This voltage can be adjusted from about 10V to 15V with a potentiometer accessible from the output side.
It has terminal blocks on the input and output sides making connection simple. A LED on the output side indicates when the converter output is active.
One attractive feature of this DC-DC converter is an automatic smart precharging sequence that keeps the inrush current low.
The converter must be mounted where it will not be subjected to water and will be able to have air circulating around it to keep it cool.