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TPS63001上电大电流,调试很久,调试不出来。

Other Parts Discussed in Thread: TPS63001, TPS63000

TPS63001上电EN使能后就大电流,布线严格按照官方参考,但是连续烧坏7片也调试不出来,

PCB如下:

SCH如下: 

实物图如下:

上电后直接过流:

我之前还一直没有遇到调不出来的芯片。希望TI能够解答,感激不尽!