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5V电路中，FB电阻选值计算电压是对的，R1=56K，R2=10K，拆下来量也是对应阻值，但是在PCBA上量R1=15K，R2=9.5K，按这两个值计算Vou是2V，实际Vout=9.5V。另一路3.3V设计中，R1是33K，R2是10K，实际Vout也是9.5V，请问各路大神这个可能会是什么原因
Hi 严重偏高，很可能是芯片FB脚损坏，换个芯片看看。
或者将FB电阻拆掉，测试FB脚阻抗，正常无穷大。
