Hi. Quick question that hopefully someone knows the answer to. To keep my boost converter as efficient as possible do I need to massively over-spec my inductor to ensure it gets nowhere near saturation? Or does the drop of in inductance not directly result in inefficiency? I see charts like the below and hope that even at 20A where the inductance has dropped ~20% I can maintain high efficiency (say >95%).

 

A reduction in inductance doesn't significantly affect efficiency as long as the inductor doesn't fully saturate.
Of the inductor parameters, it's the inductor resistance that has the most effect on efficiency.

 

Ok, makes sense. Thanks for confirming @crutschow.