Running Nucleo WB55 off a 3.7V LiPo battery

[NicRoberts]

Nucleo-WB55RG

The docs mention that it can be run off a button cell & also mention that the 3V3 pin can be used to power the board. 

Is it possible to run the board off a 3.7V LiPo battery? 

My application is pulling 7ms & using BLE

[Andrew Neil]

Take a look at the schematics - see if there is a suitable regulator ...

As always, the schematics will be available on the 'CAD Resources' tab of the Product Page:

https://www.st.com/en/evaluation-tools/nucleo-wb55rg.html#cad-resources

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@NicRoberts wrote:

My application is pulling 7ms & using BLE

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you mean 7mA ?

PS:

See also the Power Tree diagram in the User Manual:

https://www.st.com/resource/en/user_manual/um2819-stm32wb-nucleo64-board-mb1355-stmicroelectronics.pdf#page=12

via: https://www.st.com/en/evaluation-tools/nucleo-wb55rg.html#documentation

From that, you'd need to be looking at the specs for U3 ...