nPM1300 + nRF54 module Hardware review

[Marek]

Hi,
I am starting to get into the Nordic world and want to design my first pcb with nordic chips.
I would like to get a review on my schematics and the pcb.
I am mostly interested on feedback for the nPM1300, as the bl54l15-453 module does most of the work for the nrf54l15. 
I attached schematics, pcb plot and also a gerber export.

Best regards,
Marek

4263.OpenNRFSensor.pdf8306.OpenNRFSensor-pcb.pdf6242.GERBER-OpenNRFSensor.zip

[Asbjørn]

Hello Marek,

nPM1300/Schematic:

• Depending on the load we have three 10uF in parallel on the supply for VSYS and PVDD. I can only see two and if the load of the nPM is high I'd be worried that you might see some voltage drops if the supply doesn't have a buffer large enough on the VSYS/PVDD? 
• VSET1 to 47k which is 1.8V as noted on the schematic. 
• Otherwise the schematic looks good.

Layout:

• Add more vias between the ground planes. There are parts of the top GND plane that have few and long paths to the rest of the ground planes and that can create voltage potentials between the ground islands and planes. So add more vias to connect GND on islands and layers.
• Place C11, C12 and C13 closer to the module.
• It seems C6 is straddling/crossing the path from SW1 to L1. I'd recommend rotating C6 180 degrees and make the ground connection on the left instead of crossing the path between SW1 and L1.

Best regards

Asbjørn