Does anyone know of any controllers like Onsemis ncp105x series? I need a small non isolated Buck to operate off 90 to 140vac 1w max.The Osemi ones only go to 100kHz. This gives a large inductor I'm looking for one that has at least 200kHz or better with integrated switches.
The Onsemi site is done again but here is a NCP105X desighn note.