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最近使用了TI的TPS62740DSSR做低功耗设备的前端降压。通过VSEL设置稳压器输出为3.0v，断开电源芯片后端的负载。将电流表串接在稳压芯片的电源输入端。发现电流竟然达到了600多个微安。请问这个大概什么问题？
检查一下你电源是否还接着别的负载，其次看下芯片的SW节点是否有波形，
然后尝试换个芯片看看是否还是同样的现象以排除芯片已经损坏的可能
