I want to use TPS40210 to drive a TPS92640 buck converter which has a 0.5A-3A load current. It means TPS40210 boost has a pulse load at TPS92640 clock.
From datasheet, solving TPS40210 loop compensation problem need to know the boost's minimum load current, Iout(min).
So in my case, what is Iout(min)? Is it 0.5A?
In fact, my TPS40210's type 2 control loop is stable when I don't use UDIM function of TPS92640. but when I use TPS92640 UDIM function at 250Hz, it go to in oscillation.
Please give me some advice.
