I'm trying to follow the compensation method outlined in the data sheet and I'm not understanding how they come up with Rc and Cc values. For the example in the data sheet we have:
fc = 65 kHz
Vo = 1.2V
Co = 22uF
Io = 3A, So RL = 1.2V/3A = 0.4 ohms
Then using equation (18) Rc = (2pi * fc * Vo * Co)/(gM * Vref * gmps) = 10.4K. But they picked 20K.
Then using the equation for Cc = RL * Co/Rc = 846 pF. But they picked 4400 pF.
Is there an error in the example or am I missing something? Thank you for your help.