Hi, Im using a DA14695 BLE for the project but i have a doubt, the plan is to use the USB port and the 5V adapter but the coin cell voltage is 3V.
Do I need a regulator after the USB port to buck the voltage to 5V to 3.3V or the BLE is able to work in this case? Thanks
Device:
Hi Sender8,
Thanks for your question online and for your interest in our BLE solutions.
Please take a look at our DA14695 USB Development Kit – link to the support portal is provided below;
https://www.dialog-semiconductor.com/products/da14695-development-kit-usb
I guess that you would like to develop something similar with DK. Please correct if I misunderstood your requirement and your question.
See section 5.19 Power Selection Headers in order to check out how this is handled.
https://www.dialog-semiconductor.com/sites/default/files/um-b-103_da14695_usb_kit_rev_1.0.pdf
All hardware collaterals are available too. Please let me know if you need anything extra.
Thanks, PM_Dialog