Recom Power
DC DC CONVERTER /-3.3V 2W. Isolated DC/DC Converters 2W DC/DC MIN 1kV REG 2:1 4.5-9in+/-3.3out
XP Power
DC DC CONVERTER 28V 150W. Isolated DC/DC Converters DC-DC CONV, 150W QUARTER BRICK, 4:1 INPUT RANGE
Vicor Corporation
DC DC CONVERTER 28V 100W. Isolated DC/DC Converters VI-JWL-MW 24V/28V 100W