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TPS23751: 用于48V转12V,但是在输出12V上有一个很大尖刺,电路是参考的PMP11254文档做的,请帮忙看看这个和开关频率一致的尖峰怎么样才能消除呢?我们这边调整RCD吸收或者Rgate (R454)作用很小

Part Number: TPS23751

附件是我们的原理图,PCB,以及在输出12V和输出GND以及GND之间测到的尖峰。

AP70 _ P18.pdfIPE960-A50_POE_20240808A.pcb