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3.6 Voltage Regulation
The LDO regulators and the BUCK converter generate a range of programmable voltages, each
optimized for its load. When the analog baseband controller boots up or down, internal signals activate
or deactivate the LDO regulators and the BUCK converter. In active mode, the LDO regulators and the
BUCK converter are activated and deactivated through I2C. The low power regulator is on all the time
and has extremely low power consumption with limited output current. It provides power for the 32 kHz
oscillator and the real-time clock (RTC).
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Only for training and service purposes
Table. 3-6-1. LDO and Buck
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