Chapter 26
SWRU191C–April 2009– Revised January 2012
Voltage Regulator
The digital voltage regulator is used to power the digital core. The output of this regulator is available on
the DCOUPL pin and requires capacitive decoupling to function properly (see, e.g., the CC2530 reference
design).
The voltage regulator is disabled in power modes PM2 and PM3 (see Chapter 4). When the voltage
regulator is disabled, register and RAM contents are retained while the unregulated 2 V to 3.6 V power
supply is present
NOTE: The voltage regulator should not be used to provide power to external circuits.
355
SWRU191C–April 2009–Revised January 2012 Voltage Regulator
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