Hi TI employees
Our customer is using TPS54560 design scheme, the working mode is 24V decompression to 12V, when he uses 800K frequency, the waveform is normal square wave, due to the transmission of radiation, the customer needs to reduce the frequency to 400K work.
When the working current dropped to 500mA at 400K, they found that the switch waveform was abnormal. As shown in the figure, it seemed to enter the ECO mode, but not completely. May I ask what caused it and how to improve it
