Hello TI Colleagues，
Now we have a demo used LM76002-Q1, but we have a lot failure points during the CE test. According to the results, all the failure points are from the frequency doubling of DCDC switch frequency.
The details , you can see the test graphic , waveform and simplified schematic:
Simplified schematic:
Output : 5V 600mA
Waveform of SW PIN:
CE test result:
During the debug process, we did a lot changes for DCDC, for example , we adjusted input π filter， DCDC working mode, DCDC switch frequency, BOOT Circuit , output coil and input/output capacitor , but the results have no improvement.
Do you have any suggestion for this issue, what should we try?
Thank you very much!
BR.
