On Thu, 24 Nov 2011 11:45:05 -0700 Kevin Rosenberg <ke...@rosenberg.net> wrote:
> > 78xx Regulators are quite noisy. You can use them to filter the > > noise of a cheap DC/DC converter, but i wouldnt use them feed > > high precision electronics. There are a lot better designs these days. > > Would you mind recommending some low-noise regulators? Perhaps for > both low and high current applications? I'm looking for 12V to power > some OXCOs to be used a reference oscillator for a phase noise tester. > On the higher current side, maybe to power a rubidium (or at least > filter the switcher). As Bob Camp already said, Linear has some low noise LDO's. Also Ti and Analog are worth a look. All three of them also have a lot of app notes describing how to filter power supply noise for instrumentation and PLL applications. A quick googling revealed the following guides: http://www.ti.com/lit/an/slyt201/slyt201.pdf http://www.designers-guide.org/Design/bypassing.pdf HTH Attila Kinali -- Why does it take years to find the answers to the questions one should have asked long ago? _______________________________________________ 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.