NPM1300 Hibernate Mode Buck1 Buck2 output status

RE: NPM1300 Hibernate Mode Buck1 Buck2 output status

Vidar Berg — Fri, 08 May 2026 07:43:49 GMT

Thanks. So this suggests that the wake-up timer is being configured to wake up after 10 seconds. If you want the pmic to remain off until the next button press, I suggest using ship mode.

RE: NPM1300 Hibernate Mode Buck1 Buck2 output status

John — Fri, 08 May 2026 07:41:20 GMT

Vidar,

If enter ship mode, it is ok. no reset.

RE: NPM1300 Hibernate Mode Buck1 Buck2 output status

Vidar Berg — Fri, 08 May 2026 07:00:16 GMT

Hello,

Regarding the unexpected wake up, it is probably the wake-up timer, or do you see the same if you enter ship mode as well?

https://docs.nordicsemi.com/bundle/ps_npm1300/page/chapters/core_components/ship/doc/ship-mode.html

Best regards,

Vidar

RE: NPM1300 Hibernate Mode Buck1 Buck2 output status

John — Fri, 08 May 2026 05:34:03 GMT

I have further founding:

When at nPM PowerUP v2.22 pc software --> Regulators --> enable "Active Output Capacitor Discharge" for Buck 1 and Buck 2, then Click Enter Hibernate Mode. found Buck1(Vout1) and Buck2(Vout2) can drop to 0V.

Howerver, afrer about 10sec found Buck1(Vout1) suddently has 1.8v output and Buck2(Vout2) suddently has 3v output. seems PMIC reseted.

Is it expected? How to sove it?