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TPS62135: Enable Pin pull up requirements

Part Number: TPS62135

Hello, I am wondering if anyone knows or has experience with pulling up the enable (EN) pin for the TPS62135.

I need to draw as little current as possible when the device is disabled BUT need to use a FET to ground or release this pin.

I basically need to be able to have multiple sources controlling this pin.

The datasheet shows an EN "Input leakage current" of 100nA, how would I calculate the pull-up so that the device EN pin is satisfied AND still draw minimal current through the pull-up?