ViewSonic VX2235wm-3 - 8.1. DC TO DC

ViewSonic Corporation Confidential - Do Not Copy VX2235wm-3
38
8. Schematic Diagrams
8.1. DC TO DC
5V 3.3V
modify value 6/27
modify value 7/6
5V_PANEL
VDA_1V8 2,3
LCDVDD 3
VDD_CTRL4
3.3DVCC 3,4,5
DGND 2,3,4,5
adj_BACKLIGHT 4
5V_AMP 5
on_BACKLIGHT 4
DGNDDGNDDGND
+5V
VDA_1V8
DGND
DGND
5V_PANEL
3.3DVCC
DGND
+5V
DGND DGND
+5V
DGND
DGND
+5V
DGND
DGND
DGND
P101
CON9
1
2
3
4
5
6
7
8
9
Q102
NC/MMBT3904
B
E C
R111 47K
R109
22K
C108
100nF
R110 220
R102 100
R105
1K
I101 *ATC1084_3Y3_252
I
G
O
VIN
GND
VOUT
M1
PIN
R103 0/NC
R112
10K
C107
100nF
L102
200R 2A 0805
M2
PIN
R101
1K
M3
PIN
Q104
MMBT3904
B
E C
R107 0/NC
Q101
NC/MMBT3904
B
E C
R106
100
L101 200R 2A 0805
R104 NC/4.7K
R108 NC/1K
MH1
M32-D80
1
2 3 4
5
6 7 8
C105
100nF
C0603
I102 AP1117CY_1.8
I
G
O
O1
VIN
GND
VOUT
VOUT
C125
100nF
MH2
M32-D80
1
2 3 4
5
6 7 8
C103
100nF
C101
100nF
12
+
C106
10uF/16V
Q103
AP2305
G
DS
+
C104
100uF/16V
C102
NC/1uF