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如题，给TPS61200的EN引脚低电平（0V）关断不了输出，是什么情况呀。还有FB引脚电压随着输入电压浮动，输入3.0V时，FB电压为0.96V，不是典型的500mv，是否正常
看看你的电路原理图及参数，还有PCB是否跟原理图一致。
