Tool/software:
This is in continuation to the same below Previous E2E support
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1384756/lm5158-q1-boost-converter?ReplyFilter=Answers&ReplySortBy=Answers&ReplySortOrder=Descending
This is for a PoE product where we are connecting all devices in a daisy chain using PoE power. We are using the LM5158QRTERQ1 to boost and feed 52V to the PSE. The boost voltage is from 40V-48V input to 52V output with a maximum of 0.5A. Each device draws ~60mA at 40Vin. I tested it by connecting 3devices to draw a maximum of 250mA at 40V input. However, I am experiencing an audible noise issue and have tried various compensation values but have not been able to eliminate the sound fully. My design was already reviewed and certified by TI (in the above link), Various waveforms were shared in the above link, but the sound persists.
i am running out of time to release this design to SOP, Do you have an EVM for this input and output voltage range that I could order and test in my setup? Alternatively, can you suggest a different simple solution with alternate IC ?
