With more than 40 years of experience, Polyamp (together with Switch Craft division) manufactures DC/DC converters that are used in applications where the electrical/physical environment is tough and/or the customers have high demands on reliability and accuracy:
Input voltage ranges 3:1 or wider, optimized for specific battery voltages. Convection cooling and aluminium encapsulating. Output power is specified at the highest operating temperature, generally +55 C.