Model
MASS 2
Version
V_1.0
Prepared by
H/W
Date
22/01/2008
Subject Technical
Manual Page
43/59
Figure 43. Charger and Voltage Detection
Figure 44. Li-Ion Battery Charging Profile
2. Low Dropout Regulator (LDOs) and Reference
The MT6318 integrates eleven LDOs that are optimized for their given functions by balancing quiescent current,
dropout voltage, line/load regulation, ripple rejection, and output noise.
1) Digital Core LDO (VD)
The digital core LDO is a regulator that sources 200 mA (max) with a 1.8 V or 1.2 V output voltage selection
based on the supply voltage requirement of the BB chipset. The LDO also provides 1.5 V/0.9 V power-down
modes that can be controlled either by the SRCLKEN pin or by the PWR_SAVE_SPI software register. The digital
core LDO supplies the BB circuitry in the handset, and is optimized for a very low quiescent current.
2) Digital IO LDO (VIO)
Summary of Contents for MASS2
Page 20: ...Model MASS 2 Version V_1 0 Prepared by H W Date 22 01 2008 Subject Technical Manual Page 9 11 ...
Page 31: ...Model MASS 2 Version V_1 0 Prepared by H W Date 22 01 2008 Subject Technical Manual Page 9 59 ...
Page 88: ...Model MASS 2 Version V_1 0 Prepared by H W Date 22 01 2008 Subject Technical Manual Page 7 42 ...
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