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DCDC Startup Time

We are looking to use the DCDC to reduce the maximum current during radio operations, but minimize the overall current by enabling it as late as possible before radio use (due to its 300uA operating current when enabled).

The startup time of the DCDC is often mentioned in posts, but no figures are ever quoted, nor does there appear to be anything published in the Nordic documentation. Does anyone have any figures for startup times, be they typical or a range?

Thanks

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