I am studying on dual ouput converter based on SEPIC topology. I find from datasheets that both LT1930 and LT8335 could create a symmetrical dual output. Please see.
The pictures show clear that there are 2 kinds of circuts to create dual +-V outputs.
1, consists of 1 inductor and 4 Schottky diodes.
2, consists of 3 inductors (coupled) and 2 Schottky diodes.
My questions are:
Is the 2 circuits equivalent?
If they are quite different, what's the exact differences about their efficiency and output current capacity?
Is there a simple sign via which I could easily judged which kind of ICs should use which circuit?
Thank you very much!