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LM5160-Q1: What is special requirement for fly-buck converter compared with buck converter?

Yoshiki Ochi
Expert 7585 points
Part Number: LM5160-Q1
Other Parts Discussed in Thread: LM63625-Q1

Hi team, 

It is really general question, not focuses on LM5160-Q1.

Could you tell me what special requirement is for fly-buck converter IC like LM5160-Q1 compared with buck converter IC like LM63625-Q1?

Does LM5160-Q1 have benefit for applying fly-buck converter? Otherwise, could we use other buck converter ICs for constructing fly-buck circuit?

Regards,
Ochi

  • 0
    TI__Expert 8245 points

    Hi,

    Basically PFM devices are not suitable for Flybuck because Flybuck topology needs a negative current when switching. Also flybuck converters are designed to have some special control for isolated output protection like short or over-voltage which buck converters might not have such design.