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PGND在芯片内部没有任何连接吗？图中红框处的MOS管下方应该是空心的PGND符号吧？
您好，我认为这里应该是一个错误，MOSFET的地符号是空心的，它连接到PGND。
感谢你指出这个错误！我们稍后会进行更新。
