Hello
I have two question about "In case of ～Vo>>1.24V (when approximate of toff is effective), the ripple is fundamentally constant over the whole working range. The exception of approximation of toff occurs when an Iadj pin is used for analog tone light. If LED/inductor current decreases, finally the converter ships DCM and the ripple decreases accompanying the peak current threshold ~" written in "In case of moving by the CCM, the ΔiL-PP doesn't depend on the Vin and Vo."
(1) I understand that if Vo is more than 1.24V, it is CCM.
So, What voltages does Vo become moving into DCM ?
(2) What does waveform of PGAT terminal become at that time ?
Best regards.
