Re: tiny dc/dc

On Fri, 28 Mar 2025 16:49:23 -0400 (EDT), Martin Rid
<martin_riddle@verison.net> wrote:

john larkin <jl@glen--canyon.com> Wrote in message:r

Check out UCC33420. It's a tiny cheap isolated dc/dc converter. It switches at 64 MHz!

>
Why does it have such poor esd ratings?
The ucc33421 is better, but not 15kv.
Cheers

Right now I dodn't need kilovolts of isolation. I want to make a GaN
totem-pole driver and want a floating power supply for the high side,
but I want very low switching noise for low jitter on the rising edge.

I might try one of these with a bunch of added filtering. It might be
better than some dc/dc that works in the 100 KHz sort of ballpark.

Or it might be much worse.