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Power Architecture for nRF9160

Hi Team,

We are working with nRF9160.

Below are my queries:

1. Can we use same voltage for VDD and VGPIO? If so, how can we control the VGPIO?

2. What would be the performance of modem when using a voltage of 3.3V as VDD?

3. How can we control VGPIO without an external MCU?

Suggest us Power Architecture based on the queries.

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