Panasonic LUMIX DMC-G7KPP, Service Manual, Page: 65 / 67

65
12.9. Power(2) Block Diagram
DMC-G7/G70 POWER(2) BLOCK DIAGRAM
IC9101
(SYSTEM IC)
PW D1.0V
PW D1.0V A
PW D1.0V B
IC6001
(VENUS ENGINE)
F1002
EV3
(PW UNREG SYS)
(PW DRAM1.2V)
(PW DRAM1.8V)
(PW DRAM1.2V A)
IC9103
(REGULATOR)
3 4
6
5 2
1
VSS
VIN
VOUT
CE
NC
NC
CL9101
(EVER 3V)
(POWER CTL SW)
K6
OVERCUT H8
FBREG K10
AD21
IC6503
(REGULATOR)
2 3
4 1 VOUT
GND
VCC
CE
IC6506
(LOAD SW)
3 2
1 4 VOUT
VIN
GND
CE
A3
IC6502
(REGULATOR)
2
3
4 1 VOUT
GND
VCC
CE
IC6504
(LOAD SW)
3 2
1 4 VOUT
VIN
GND
CE
AE4
C26
(PW DRAM1.0V)
H5
C1
POWERCTLSW L9
AG4
A24
IC6501
(REGULATOR)
2
3
4 1 VOUT
GND
GND
VCC
CE
IC6505
(LOAD SW)
4
3
1 VOUT VIN
CE
BACKUP CTL5 J10
QR6501
M8
(BACKUP CTL1)
BACKUP CTL1 K9
G12
(BACKUP CTL2)
BACKUP CTL2
L11
PW UNREG
PW D1.2V
From QR1001-3
IC1091
(SYNCHRONOUS STEP-DOWN CONVERTER)
6
9
10
SW
SW
7
SW
UGATE
LGATE
VIN
VIN
VIN
SS
FB
EN
RIPPLE
GEN.
EN
VBIAS
INTERNAL REGULATOR
ON-TIME
PGND
PGOOD
FB
0.9 VREF
DRIVER
SWITCH
CONTROLLER
OVER CURRENT
PROTECTION
UNDER & OVER
VOLTAGE
PROTECTION
3
T1
5
8
BOOT
PVCC
PVCC
PVCC
CL1091
PW D5.0V
PW EXTSTB5.0V
CL1051
VREF
+
-
FB
COMPARATOR
PGOOD
COMPARATOR
+
--
2 A
4
2
1
HS LIM.
ERROR
AMP.
DCS-CONTROL
TM
COMP.
IC1051
(STEP DOWN CONVERTER)
2
15
16
12
SW
PVIN
FSW
GATE
DRIVE
POWER
CONTROL
CONTROL
LOGIC
13
PGND
PGND
SOFT
START
UVLO
THERMAL
SHUTDOWN
TIMER T
ON
DIRECT CONTROL
& CONPENSATION
PG ONTROL
7
VOS
14
FB
5
11
PVIN
AVIN
EN
9
SS/TR
8
DEF
LS LIM.
COMP.
1
SW
3
SW
COMP.
15
16
PGND
AGND
PGND
4
PG
+
-
10
POWERONH
(POWER ON H)
(POWER ON H)
W4
J7
(BACKUP CTL4)
BACKUP CTL4 K11
PW D1.8V
PW D1.0V B
(BACKUP CTL3)
BACKUP CTL3 J9
6
CL1003
CL8001
CL8002
(STB PWR ON)
1 2 3
4 6 5
Q8002
QR8005
IC8002
(LOAD SWITCH)
VOUT
VOUT
VIN
CURRENT
LIMIT
THERMAL
SHUT DOWN
SLEW RATE
CONTROL
DRIVER
OUTPUT
DISCHARGE
CONTROL
LOGIC
GND
1
2
5
VIN
CNT
6
4
3
PULL
DOWN
1 2 3
4 6 5
Q8003
5
2
4
3 1
6
OUT
VSS
+IN
-IN
VDD NC
IC8001
(SINGLE COMPARATOR)
(STB LRG CRNT ON)
PIOB4 E9
PIOB3 E10
PIOC3
CL9104
Q9101
PW MIC3.8V
B11
IC9104
(REGULATOR)
2 3
4
1 CNT
GND
VDD
VOUT
2