I am building a wireless charger based on bq500212A (datasheet here)
However, I have an issue with the LDO: It fluctuates the voltage by about 400mV in a wave.
Here are some oscilloscope images:
It's my first time using the oscilloscope for this purpose. This is what I could find on the internet. I also checked the 5V line and it does not present these fluctuations.
Could you tell me what am I doing wrong and why I don't get a stable 3V3 output?