51822 low power consumption problem

[liyangzheng]

We are making a product with nRF51822;Powered by a CR2032 button battery；Hope to achieve low power consumption;

It can be seen in the datasheet that nRF51822 has  Internal LDO,DC/DC converter,Low voltage mode setup,Three models.Which mode is more energy efficient?

The following is the schematic diagram I designed by using DC/DC Converter Mode. Is there any problem?

[Stian Røed Hafskjold]

Hi, using the DC/DC converter is most power efficient. The schematic looks fine, but if you want to use the radio you will need a 32MHz crystal as well. Please note that the nRF51 is not recommended for new Bluetooth low energy designs, since the software is no longer updated.

[liyangzheng]

thank you