Power Supply - LG -T300 Service Manual

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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