I have been running some tests on the AP63356Q switching regulator to view the performance at different loads. I plan to use the regulator to step the voltage down from either 12 or 24 V to 5 V. After conducting multiple tests, I have discovered that mean Vout decreases with higher current while the Vout ripple increases.
The inductor being used in this circuit is the NRS8040T6R8NJGJ. I use different resistors on a breadboard to get the results for different loads.
I get that adding an extra capacitor or two may limit the peak-to-peak voltage but any ideas on how to maintain a steady 5 V at higher loads? Would using the external compensation solve this issue? Any advice on how to choose a suitable inductor for the job (I have noticed that the inductor's temperature increases as well)?