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2

Using nRF51822 with a 3V coin cell?


oyvkar gravatar image

asked 5 hours ago

Is there a recommended boost converter for using nRF51822 with a 3V coin cell battery? I'd appreciate a pointer to a schematic.

Thanks

2 answers

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3
oyvkar gravatar image

answered 3 hours ago

You don't need a boost converter for a 3V power source. The nRF51822 runs down to 1.8V. From a 3V coin cell, you can even use the built-in buck(stepdown) converter to reduce the battery drain while the battery is still fresh.


0
stian gravatar image

answered 2 hours ago

If you do decide to use a boost converter, make sure to not supply the nRF51 from this, as the added switching noise might deteriorate the performance of the chip, particularily the radio.



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3
oyvkar gravatar image

answered 3 hours ago

You don't need a boost converter for a 3V power source. The nRF51822 runs down to 1.8V. From a 3V coin cell, you can even use the built-in buck(stepdown) converter to reduce the battery drain while the battery is still fresh.

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