Other Parts Discussed in Thread: LM25017, , LM5161, LM25180, LM5180
Hi,
Is LM5166 suitable for use in Fly-buck configuration (isolated output with 1:1 coupled inductor)? I have a design which previously used the LM25017 in fly-buck to generate dual output (12V isolated, 12V non-isolated). I have a new design which could benefit from the same configuration, but the design is using an LM5166 elsewhere on the board to generate a 5V rail. It would be nice to use the same DCDC regulator twice. It is also nice that the LM5166 is capable of higher efficiency in the 5V output configuration than the LM25017 would be.
If it is possible, any considerations I should know? I am assuming it would need to be in COT mode.
Could the differences in current limit of the LM5166 vs LM25017 pose any concern? The LM25017 doesn't list different current limits for the high-side vs low-side FET thresholds, but the LM5166 does.
Thanks for your help!
Robbie