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TPS63020 EN pin

Other Parts Discussed in Thread: TPS63020

We have the TPS63020 designed into on of our products. Currently the EN line of the device is pulled high to the VINA pin. However, we need to make a change so that a microcontroller can toggle this pin. Essentially, giving the micro the ability to power itself down. We planned on putting a pull-down resistor to the EN line going to the micro GPIO. My questions: 1) Is this correct way of doing it? 2) Do you have a recommended value to use for a pull-down resistor? 

6558.schematic.pdf