[time-nuts] Switching regulator 12 > 4 V (3.3)

Tim Shoppa tshoppa at gmail.com
Sun Dec 4 16:06:30 EST 2016

I use the LM2574 for a lot of one-off applications the past decade or more.
For a 4V application you would start with LM2574-ADJ. It is available in
8-pin DIP, although the surface mount part is just as amenable to
dead-bugging, and does 0.5 amp no problem and runs perfectly cool. It does
not take (by modern standards) the smallest switching inductors and I
always do additional LC filtering at both input and output, so in terms of
"board space" this is quite a hog compared to more modern higher frequency

Tim N3QE

On Sun, Dec 4, 2016 at 2:46 PM, KA2WEU--- via time-nuts <time-nuts at febo.com>

> Who has a good recommendation for a switching power supply circuit, 12V DC
> in, 4 V/ 500mA out , Exactly 3.3 for IC voltage.
> 73 de Ulrich
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.

More information about the time-nuts mailing list