Hi, is it possible to use the onboard buck regulator of the nRF52840 to supply the 3V for the rest of the circuitry while nRF52840 is off (and also for the nRF52840 while it is on)? As you might have guessed, the motivation is to have an energy efficient and space saving design when using a Li battery as the energy source (by connecting it directly to VDDH). Thanks!