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TPS54332 辐射大问题

Other Parts Discussed in Thread: TPS54332

产品要做FCC认证(5.5V 3.5A),EMI测试不过关,请各位大大看看可能是什么原因。

请问TPS54332本身的辐射是多少?

请大家提提改进的意见,谢谢!

输出波形:

输入波形:

下面是原理图跟PCB