ultrafast switching transistor
 

Hi can anyone here tell me what are the fastest switching mosfets or IGBT around? I mean like in frequency and maybe give some examples.
I am searching for such devices for my smps project.

Thanks in advance.

Infineon's CoolMOS vs Transphorm’s GaN HEMT

Transphorm?s GaN power device takes on Infineon?s CoolMOS » Technology Blog » Chipworks

Just go with CoolMOS at least they are generally available.