I am using Coilcraft JA4575-BL inductors, which would in theory be a perfect fit for this application:
https://www.coilcraft.com/ha4158.cfm
Fsw=768khz, Cfilter=0.68uF
However, when I am pushing the output slightly into clipping with a 4 ohm load at 24V, the output collapses and the chip resets. 24V 8 ohm works, 12V 4 ohm too.
It seems to be some kind of current limit. The EVM does not exhibit this behavior, also different inductors on my PCB seem to fix the problem.
Before I design a new board revision, does anybody have a clue why this is happening? Am I missing something in the datasheet?
