LG -A230 Service Manual page 39

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 LGE Internal Use Only
Figure. 3.5.5 POWER SUPPLY BLOCK DIAGRAM
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3. TECHNICAL BRIEF
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