# MKRWAN1300 high current in sleep mode

**URL:** <https://www.thethingsnetwork.org/forum/t/mkrwan1300-high-current-in-sleep-mode/13749>\
**Category:** Hardware\
**Created:** [May 3, 2018, 7:22am UTC](https://www.thethingsnetwork.org/forum/t/mkrwan1300-high-current-in-sleep-mode/13749 "2018-05-03T07:22:46Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![sslupsky](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/sslupsky/32/25844_2.png) [@sslupsky](https://www.thethingsnetwork.org/forum/u/sslupsky)\
**Post date:** [September 18, 2018, 8:33pm UTC](https://www.thethingsnetwork.org/forum/t/mkrwan1300-high-current-in-sleep-mode/13749/20 "2018-09-18T20:33:19Z")

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@Amedee, @sebbad There is another problem with the MKRWAN1300 related to the power supply for the Murata module. VDD\_USB needs to be connected to the same supply as VDD\_MCU.

The good news is that with the modifications to VDD\_TCXO and VDD\_USB I was able to achieve a sleep current of about 8.5uA.

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