nPM1100 and nRF9160

[Ivan Herrera]

Hi! The nPM1100 is advertised specifically as a complementary product to the nRF52 and nRF53 product line. Seeing how the nRF9160 can also operate at 3V, I was wondering why it is not advertised as complementary with that series too?

[Kazi Afroza Sultana]

Hi Ivan,

The nPm1100 is 400 mA linear battery charger (Adjustable charge current from 20 mA to 400 mA). Another feature of nPm1100 is- 1.8 V to 3.0V, 150mA step-down buck regulator. 

But  the nRF9160 requires up to 500mA to operate. It can not be powered from the regulated rail. So, this 150mA is not enough for charging the nRF9160.

In this devzone case NRF9160 current consumption continuous and peak during network discovery - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com), you can find more information about current consumption.

Hope it helps.

Best Regards,

Kazi Afroza Sultana