I can't find the maximum operating voltage on the ADP5073's EN pin in the datasheet. I see that the absolute maximum voltage is +6 V but what is the operating maximum voltage?
So what is the OPERATIONAL maximum voltage? In the datasheet you write Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied.