Isolated 3.3- to 5-V converters are often required in long distance data-transmission networks, where the bus-node controller operates from a 3.3-V supply to conserve power while the bus voltage is 5 V to maintain signal integrity and to provide high drive capability over long distances. Although isolated DC/DC converter modules for 3.3- to 3.3-V and 5- to 5-V conversion are readily available on the market, 3.3- to 5-V converters in integrated form are still hard to find.