这个是电路图
这个是布局
TPS62290TDRVRQ1
无论我怎么调节反馈电阻,输出电压始终是1.8V,想知道是怎么回事
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Hi
FB不受控,很可能是芯片的问题,确认是芯片损坏还是型号错误(芯片损坏,可能是FB端部烧掉,断路,然后固定反馈输出1.8V)