Dear:
As now we are using the TPS544B20 for 12V to 1V/10.078A; Fsw=400K ; Cout:1028uF, Resr=1.5mohm; L=0.68uH
we are encounter a issue that the phase margin is not enough at mid-frequency(refer below picture), we have also try to adjust the Rcomp, Comp , C_HF by the COMP pin to AGND, but it seem no big improved.
so we want to get some help ? Does the transfer function of compensation is similar with transconductance of Type II? how to design the compensation for TPS544B20 ?
