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3. TECHNICAL BRIEF
3.5.2.4 Power Supply
To increase power efficiency most parts of the RF subsystem are supplied by the DCDC converter
situated in the PMU subsystem. Conversion of the 1.8 V output voltage of the DCDC to the 1.3 V/1,4 V
circuit supply voltages is achieved by several Low-DropOut regulators (LDO).
One embedded direct-to-battery LDO provides the 2.5 V supply voltage for the remaining circuits.
LGE Internal Use Only
Figure. 3.5.5 POWER SUPPLY BLOCK DIAGRAM
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3. TECHNICAL BRIEF
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