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1
RN9
4.7K 8P4R
1
2
VID0
VID0
3
4
VID1
VID1
5
6
VID2
VID2
7
8
VID3
VID3
VID4
VID4
R69
4.7K
A
B
5V_SB
AMS1117-3.3
IN
VIN
CT35
CB17
.1u
10u
C
D
1
2
L20
1uH
C94
C84
C89
C96
1000u
1000u
1000u
.001u
+12V
11
3
C83
.1U
R61
0
P_GND
Q7
VCC3_SB
OUT
VOUT
CB16
.1u
2
Q4
NDP6030L
L24
D
S
3uH
R76
Q2
NDP6030L
G
3.3K
R70
10
R71
10
D3
C92
DIODE
.1u
V_FB
GND/NC
SS
5V/COMP
C95
(OPT)
3
C97
C102
C101
1000u
1000u
1000u
R56
15
U6
C82
.1u
10
C81
.01u
C87
.002u
R59
R55
(OPT)
20K
9
HIP6004/US3011
C86
VCC2_5
(OPT)
R62
20K
VCCP_GD
C88
.01u
Q8
2
VOUT
VCC3
3
1
VIN
ADJ
LT1587
C119
1000u/6.3V
Q9
2
VOUT
3
1
VIN
ADJ
LT1587
CM24
1u
VIA TECHNOLOGIES, INC.
Title
DC-DC CONVERTER
Size
Document Number
C
VT5228C (Preliminary)
Date:
Wednesday, November 24, 1999
3
4
VCCP
C100
C99
C98
CT30
1000u
1000u
1000u
1000u
A
R60
1.33K
B
VTT
R118
100 1%
+ C104
1000u/6.3V
CM22
R122
1u
20 1%
C
VCC2_5
R130
100 1%
+ C105
1000u/6.3V
R129
100 1%
D
Rev
0.1
Sheet
16
of
20
4
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