Device Runtime Power Management nrf5340

RE: Device Runtime Power Management nrf5340

JONATHAN LL — Tue, 03 Feb 2026 00:36:31 GMT

[quote user="Macherla Swetha"]but how to reduce power consumption other than this?[/quote]

Disable peripherals when not in use and sleep or idle as often as possible. Use system off if possible, but you will need something external like an RTC to wake it up if that is needed.
Use DCDC regulators if possible.

See https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/test_and_optimize/optimizing/power.html#power-optimization for up to date info on the latest NCS.

Regards,
Jonathan

RE: Device Runtime Power Management nrf5340

Macherla Swetha — Sat, 10 Jan 2026 06:35:30 GMT

CONFIG_PM is no longer used by Nordic... i got it .

but how to reduce power consumption other than this?

RE: Device Runtime Power Management nrf5340

Macherla Swetha — Fri, 09 Jan 2026 12:56:04 GMT

I read those blogs, and I don’t want to use system off. I want to reduce power consumption in run mode. My application runs every 1 second, but it takes only 200 ms to execute. For the remaining 800 ms, I want the system to stay in sleep mode. When an interrupt occurs, the system should wake up.

is their any methods to implement low power modes?

when i enable CONFIG_PM=y -----> it gets "n" only.

RE: Device Runtime Power Management nrf5340

JONATHAN LL — Fri, 09 Jan 2026 12:47:20 GMT

Have a read of this blog https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/optimizing-power-on-nrf53-designs#mcetoc_1fdsj2ncl1 Its a bit outdated but same principles apply.

If you want the best power saving then consider using system off when possible. https://docs.zephyrproject.org/latest/samples/boards/nordic/system_off/README.html , https://github.com/zephyrproject-rtos/zephyr/tree/main/samples/boards/nordic/system_off .

Disable any peripherals that are not in use, lower output power on the radio if possible.

Regards,
Jonathan

RE: Device Runtime Power Management nrf5340

Macherla Swetha — Fri, 09 Jan 2026 04:44:09 GMT

I am trying to implementing Low power modes... nRF5340, with ncs version 3.1.0

RE: Device Runtime Power Management nrf5340

JONATHAN LL — Thu, 08 Jan 2026 13:42:39 GMT

[quote user=""]is their any methods to keep the device in idle when it is idle...[/quote]

Not sure what you want here, can you try and explain in detail what you are trying to do and what potentially is the source of your confusion ?

Wat NSC version are you using and and what samples have you used?

Regards,
Jonathan