Couldn't make up my mind :P
12V-80V Vin (DC)
In general terms (considering architecture and design) is it better to do directly 3.3V from Vin or is it better to do some intermediate step in between before having 3.3V for IC-s (say 12V and then 3.3V OR 5V and then 3.3V)?
I have an option to get all my components to run on 3.3V. I have one cheap 5V tranceiver (3.3V IO compatible btw), but I find it pointless to have a 5V rail JUST because of it, when everything else is 3.3V. I can find the tranceiver in 3.3V as well.
But also I find buck converting 60Vin-max to 3.3V kind of a big step (low duty cycles, bigger components...) But having intermediate step without using it seems also a waste (extra components).