I have a design with the LM5116 (schematic attached)
The input current behavior can bee seen in the attached oscilloscope picture. In the scope shot, I was pulling 2A from the output. The only difference from the schematic shown is that my output voltage fb has a 137k on the top side of the resistor divider, making the output voltage 17.9V instead of 24V. The output current is extremely level (cannot see anything like this input current drop). The output voltage seems to show some signs of the input current event, but only very little. The second scope capture shows the output voltage (AC coupled) and how that looks next to the input current event.
Does anyone know why the input current is behaving like this? What other information do you need if I haven't provided enough?
Thanks for any help!
