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3. TECHNICAL BRIEF
3.8 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 3-10. ADP3408 inner block diagram.
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