Hi team,
In our customer application, the device VIN is supplied by battery (4.2V), Our customer want to supply pin VIN (the internal LDO input) by an isolate power, which is because that VIN will drop a lot due to the VIN load line loss when application in a heavy load, what's more, the battery voltage will also drop in low battery. and the low input will trigger UVLO leading to abnormal situation. The question is whether such an option is feasible, and is there other influence by low VIN (<2.7V) when pin VIN supplied by an isolate power.