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Powering NRF52

Hi During schematic design, i read regarding proper powering of NRF52 (the product is battery powered 2xAAA). somehow i can't find this info now and i would like to verify that i am not wrong: "It is not recommended to connect the SOC to Booster output for example " - am i right? i am connecting it directly to the battery cell, but i do have booster with bypass in the system in order to supply correct voltage to the Motor driver and Buzzer, when battery voltage goes low (for example up to 2v). Can anyone point me to relevant document? thank you Yulya

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