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BQ24195功耗问题

Other Parts Discussed in Thread: BQ24195

通电后3.3v mcu启动,通过mos断开4v的后级电路,然后将BQ24195配置为boost模式。

仅这三步操作,测得锂电池电流达到17mA,太可怕了。系统运行起来之后无论我再怎么做低功耗,这17mA也降不下去啊,况且4v后面的电路我都没启动。

这样如何做低功耗?求解

大致框图描述: