Hi,
In a customer design, ENVR3 is not directly connected to LDO3V as expected. ENVR3 is actually controlled through a button with 10kohm resistor pull-up to LDO3V. When the button is pressed, VR3 is turned off as a reset event to the whole system.
Currently, the system reset behavior from this button looks normal on customer board that the system is back to ON as expected after button is released. Meanwhile, we observed LDO3V becomes low as well while the button is pressed low, and come back to high level after button is released.
Is this a normal behavior that LDO3V becomes low while the button is pressed low? Is it because VR3 is turned off or is it related to the RESET button related schematics on customer board? Do you see any risk here for such design?
Thanks!
Antony
