Hi,
just want to check if several kHz changes at different load is normal or not. Datasheet curve shows Fsw is almost fixed when load changes above 1A but customer side find it changes several kHz.
based on DCS control topology, Ton= Vout*Ron*Con/(4*Vin) then Fsw should be fixed and only has relationship with Ron*Con, and no relationship with Vout or Vin.
Thanks.
BRs
Given