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Are the switches with a PMOS pull-up resistor suitable for live-insertion and power sequencing applications?

April 26, 2017applications insertion live live-insertion PMOS power pull pull-up Resistor sequencing suitable switches

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Are the switches with a PMOS pull-up resistor suitable for live-insertion and power sequencing applications?

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No, because during live insertion, at the moment of connection, the voltage at Vcc pin is 0V due to the delay caused by the bypass capacitance. The PN junction of the PMOS pull-up resistor at the B-side of the switch will forward the signal to ground through the Vcc pin at 0V. The above case is the same for a power sequencing situation. Refer to Application Brief 39 for more details.