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5.5.1. Power System Ship
5.5.2. Power Source
Figure 5.14. ADP3522 Functional Block Diagram
Chipset
ADI ADP3522
Package
32-pin LFCSP5x5
FEATURES
■
Handles all GSM Baseband Power Management
■
Six LDOs Optimized for Specific GSM Subsystems
■
Li-Ion Battery Charge Function
■
Optimized for the AD20msp430 Baseband Chipset
■
Reduced Package Size: 5x5 mm LFCSP-32
ADP3522 is specified over the temperature range of –20
°
C to +85
°
C.
The battery comprises a single Lithium-Ion (Li-Ion) cell with a nominal voltage of 3.7 V and 720-mAh capacity.
This type of battery has an advantage in weight and size over Nickel Metal Hydride (NiMH) cells.