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我想用TPS5430输出5V的电压,输入是12V的,通电以后,一开始是正常的,有5V左右的输出,但是过了几分钟,就出现很奇怪的问题,输出竟然变成了8V左右,不知道是哪里有问题,麻烦帮忙看一下,谢谢这个是我的原理图:
这个是我的PCBLAYOUT:
