CY4533 EZ-PD BCR Evaluation Kit 800 Hz Sawtooth Wave

[JeHi_4734781]

Hello,

I am using the CY4533 EZ-PD BCR Evaluation Kit for a work project exploring the use of USB C power in place of more common power supplies. While using the CY4533 (set to 5V), I measured the power output and noticed a sawtooth wave with a frequency of around 800 Hz. I am trying to identify the cause of that specific wave, which is too slow to be caused by the switching frequency of the USB C power supply that I am using to power the CY4533 kit. Is this 800 Hz sawtooth wave a product of the CY4533 EZ-PD BCR Evaluation Kit or is it coming from somewhere else? If it is not coming from the CY4533, where could it be coming from? Thanks!