Power Management - LG G1500 Manual

3. TECHNICAL BRIEF

3.9 Power Management

ADP3408
Power up sequence logic
The ADP3408 controls power on sequence.
Power on sequence
If a battery is inserted, the battery powers the 6 LDOs.
Then if PWRONKEY is detected, the LDOs output turn on.
REFOUT is also enabled, Reset is generated and send to the AD6522.
Figure 3-28. ADP3408 inner block diagram
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