LG LG-D855 - [D855] PM8841 SMPS; PM8941 Input Power Management

5. BLOCK DIAGRAM
- 214 -
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Only for training and service purposes
LGE Internal Use Only
[D855] PM8841 SMPS / PM8941 Input Power Management
+0V9_VREG_S2B(3A)
PMIC
PM8841
VSW_S2
MSM8974AB
VSW_S1
VDD_CORE
USB_SS_VPTX
VDD_USB_CORE
VDD_SDC_CDC
VDD_PLL1
+0V95_VREG_S1B(2A)
VDD_MEM
VDD_EBI0_CDC
VDD_EBI1_CDC
VDD_EBI0_PLL
VDD_EBI1_PLL
VDD_S1
VDD_S3
+1V15_VREG_S3B(1A)
VDD_MODEMVSW_S3
VDD_S2
VDD_S4
+0V9_VREG_S4B(3A)
VDD_GFXVSW_S4
USB 3.0
Connector
OVP
VCHG
USB_IN
OVP_OUT
VCHG
VSW_SMBC
SMBC - Buck
(Switched-Mode
Battery Charger)
+VPWR
DC_IN
DC_IN
OVP
VBUS_USB_IN_PM
VBUS
External
Charger
(MAX8971EWP)
OVP
+VPWR
VPH_PWR
BAT
FET
VBAT
CHGOUT
+5V0_OTG_OVP
CHG_SYSON_USBIN
SYSON
SW
+VPWR
VDD_S5
VDD_S6
VDD_S7
VDD_S8
+0V9_VREG_KRAIT(12A)
VDD_KRAITVSW_S5
VSW_S6
VSW_S7
VSW_S8
VDD_PON
VDD_MSM_IO
PM8941
Option for BMS
BMS_CSP
BMS_CSN
+1V8_VREG_S3A
Battery
Load
Switch
VBAT_SENSE_M
VBAT_SENSE_P
VBAT1
VBAT
QSTRT
Fuel
Gauge
(MAX
17048)