Is nrF52840 VDDH pin only used for REG0 LDO/DCDC regulator output

Is nrF52840 VDDH pin only used for REG0 LDO/DCDC regulator output to generate VDD power for the GPIO circuitry?

or is VDDH power used to power some other internal circuits in the nrF52840?

BR

Øystein

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  • Hi Øystein

    The VDDH pins are just an alternate power supply, which can be used to set the nRF52840 in High Voltage mode, which supplies it with 2.5-5.5V. Please see this link for more information about the nRF52840s power supply options.

    Best regards,

    Simon

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