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AM3354BZCZD80电源VDDS_RTC供电问题

Other Parts Discussed in Thread: AM3354, TPS65217

您好,现在手上用到AM3354这颗器件,PMIC用的是TPS65217D,关于VDDS_RTC电源的问题,遇到一个奇怪的现象,单板上电后,TPS65217D的VLDO1输出是2.5V,断开VLDO1与AM3354连接的VDDS_RTC后,TPS65217D输出1.8V正常,但是AM3354的VDDS_RTC上面还有2.5V,断开VDDS_RTC相连的所有器件后,上电后仍然有2.5V。请教各位,问题出在哪了。