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TPS61322: 输入端待机功耗很大30uA

Part Number: TPS61322
Other Parts Discussed in Thread: TPS61299

使用器件TPS613221ADBV设计了一个升压电路,输入1.5V 输出3.3V

电路实测输入端待机功耗很大,无负载情况下,输入端实测电流接近30uA

请问是属于正常现象吗,Data Sheet中似乎描述Isw_LKG典型值仅为3.5nA,请问可以调整哪些参数降低待机功耗吗?

期盼回复,谢谢!

设计原理图如下:

尝试过L1更换4.7uH,或者拆除D4,问题依旧