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参考如下原理图，自己打的板子和官方给的Gerber文件打出的板都不行，刚开始的时候都是ok的，每过两三个小时lmr14020输出就变得不稳定，出现斩波波形。请问各位专家，这个参考设计有什么需要注意的地方么？
祝好！
