The EV industry is in a rapid cycle of innovation, striving for the automotive goal of simpler, smaller and lighter weight designs. This presentation describes how the use of a 1.7 kV flyback converter with integrated reinforced isolation provides benefits both for the converter but also new choices for the systems engineer. By simultaneously hitting all three goals while increasing performance opens architectural changes to the vehicle itself. Comparison of performance between solutions will be given, key design decisions and challenges, especially when designing for 800 V vehicles provided and the options enabled by an integrated solution discussed.