nRF52840 + nPM1300 devboard

Created by [tobycm] • Started on June 08, 2025

Making a devboard with the nRF52840 SoC integrating 2.4Ghz technologies such as Bluetooth, Zigbee, Thread and a complimentary nPM1300 PMIC for power management

Jun 21, 2025 | 22:50 - 00:10 | getting started

Found the datasheet for the microcontroller here: https://docs.nordicsemi.com/bundle/psnrf52840/page/keyfeatureshtml5.html

PMIC datasheet: https://docs.nordicsemi.com/bundle/psnpm1300/page/keyfeatureshtml5.html

Time to go shopping on LCSC (and Digikey for some unavailable parts):

Jun 22, 2025 | 12:32 - 13:32 | making a pseudo BOM, mostly important parts

Basing from this reference schematic from the nPM1300 datasheet:

nPM1300 reference schematic

Their suggested BOM: nPM1300 reference schematic suggested BOM

Already picked the inductor yesterday, so let's finish picking the resistors and capacitors.

Let's wire the schematic for the PMIC!

Since there isn't a symbol for the nPM1300, I guess I will create my own.

creating nPM1300 symbol