MP2733: VREF is 3.6V in SHIP mode

Battery Management
1

Hello there,

We are seeing that the VREF pin of the MPS2733 is still showing 3.6V after the chip has been put into SHIP mode (when the BATTFET should be open). We are seeing a current draw of ~60uA in SHIP mode when it should be 13uA. Can you highlight a few reasons why this might be the case (either schematic or firmware)? The schematic was drawn keeping the typical application as the reference.

Thanks.