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TPS61027 TPS61026短路问题

Other Parts Discussed in Thread: TPS61026, TPS61027

各位大神:

        有用过TPS61026和TPS61027的大神吗?你们的芯片短路吗?为什么我的芯片一焊上去就短路呢?换了好几个芯片都是这样,原理图和布局图如下:

请大神们帮我看看有问题吗?