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TPS22917: Parallel power supplies with TPS22917

Part Number: TPS22917
Other Parts Discussed in Thread: TPS61094,

Hi Ti,

We are designing a smart water meter that communicates with an NB-Iot modem.

Question 1)
We plan to use TPS61094 as in Figure-1.
We want to use TPS22917(Load switch-1) to completely turn off the power of the NB-IoT modem whenever we want.
We want to find out whether the design in Figure-1 is suitable.


Question-2)
We want to use an additional battery to easily update FOTA during the development and testing process.
With the design in Figure-2, we want to activate the second battery TPS22917 (Load switch-2) when necessary.
In this case, we want to find out whether the design in Figure 2 is suitable for protection from reverse currents.