SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
Several other modules in the device (such as the frequency synthesizer, RF power amplifier, and so forth) have separate internal regulators running at either 1.4 V (analog modules) or 1.28 V (digital modules). These regulators are powered up or down automatically by firmware when needed.