Hello,
I have this device on a new design. Vdd is never removed from the Vin pin. Vin == Vdd == Vbat or 3.3V depending on whether or not the 3.3V boost regulator is enabled. When the regulator in not enabled VBat == Vdd. I am seeing that when I enable the TPS22910A device by pulling the Enable pin low , then disable the device some time later Vout never returns back to 0V and there is current flowing through my circuit that I do not expect. In fact it seems that the Vin going into the chip is being halved by a resistive voltage divider because Vout == Vin * 0.5. i.e. When Vin == 2.5V Vout = 1.2-1.3V, When Vin == 3.0V Vout == 1.5V
Cout :Cin == 4.7uF : 0.1uF.
Does this behavior indicate these parts are damaged? (I have 5 boards behaving the same way).
Thanks