Power Management - LG C1100 Service Manual

3. TECHNICAL BRIEF

3.6.5 Power Management

1. Power up sequence logic
1. The AD6537B controls power on sequence
2. Power on sequencez
- If a battery is inserted, the battery powers the 8 LDOs.
- Then if PWRONKEY is detected, the LDOs output turn on.
- REFOUT is also enabled
- Reset is generated and send to the AD6525
Figure 3-16. AD6537B POWER MANAGEMENT SECTION
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