This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS62135: Switching Frequecnty Fluctuation

Part Number: TPS62135

Hi,

My customer is evaluating TPS62135 on the EVM.

Switching fluctuation occurs as below waveforms as below.

The condition is VIN=9V, VOUT=7V, FPWM mode. 

What is this fluctuation caused by?

Best Regards,

Kuramochi