LG LG-V909DW - 3.9 Power Block

3. TECHNICAL BRIEF
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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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3.9 Power Block
3.9.1. General
Since LG-V909 has two individual chips, MDM6200 uses PM8028 and T20 uses TPS658621D as a main PMIC.
3.9.2 PM8028
The PM8028 device integrates all wireless handset power-management, general-housekeeping, and user-
interface support functions into a single mixed-signal IC. Its versatile design is suitable for CDMA, UMTS,
and/or GSM phones, and other wireless products such as data cards and PDAs. This mixed-signal BiCMOS
device is available in the 136-pin nano-scale package (136 NSP) that includes several ground pins for
electrical ground and thermal relief. The PM8028 is organized by the following device functionality:
- Input power management
- Output voltage regulation
- General housekeeping
- User interfaces
- IC interfaces
- Configurable pins – either MPPs or GPIOs – that can be configured to function within some of
Figure. Modem Power Block Diagram

ͽ͸ͶͺΟΥΖΣΟΒΝΆΤΖ΀ΟΝΪ

3.9 Power Block
3.9.1. General
Since LG-V909 has two individual chips, MDM6200 uses PM8028 and T20 uses TPS658621D as a main PMIC.
3.9.2 PM8028
The PM8028 device integrates all wireless handset power-management, general-housekeeping, and user-
interface support functions into a single mixed-signal IC. Its versatile design is suitable for CDMA, UMTS,
and/or GSM phones, and other wireless products such as data cards and PDAs. This mixed-signal BiCMOS
device is available in the 136-pin nano-scale package (136 NSP) that includes several ground pins for
electrical ground and thermal relief. The PM8028 is organized by the following device functionality:
- Input power management
- Output voltage regulation
- General housekeeping
- User interfaces
- IC interfaces
- Configurable pins – either MPPs or GPIOs – that can be configured to function within some of
Figure. Modem Power Block Diagram