Thanks for this. I've seen something similar from Murata : http://uk.farnell.com/murata-power-solutions/oki-78sr-5-1-5-w36-c/converter-dc-dc-1-o-p-7-5w-1-5a/dp/2102101
Since they're a mainstream supplier of inductors they may have managed better performance - it would be interesting to compare. On Sun, Dec 4, 2016 at 6:50 PM, John Ackermann N8UR <j...@febo.com> wrote: > I found a cute little switching regulator that's a drop-in replacement for > an LM7805: http://www.ebay.com/itm/261243604047 > > I got a couple to play with, mainly to see how bad the noise would be. > Here are spectrum analyzer and PN shots comparing a cheap surplus OCXO when > driven by a regular 7805 and by the switching replacement. > > The switching frequency is supposed to be 2 MHz but you can see that it's > more like 2.4 MHz. Whether this performance is sufficient for any > application is up to you. It sure runs a lot cooler than a 7805, though! > > John > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.