DC1168A - Schematic

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4
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This circuit is proprietary to Linear Technology and supplied
for use with Linear Technology parts.
Customer Notice: Linear Technology has made a best effort to
design a circuit that meets customer-supplied specifications;
however, it remains the customers responsibility to verify proper
and reliable operation in the actual application, Component
substitution and printed circuit board layout may significantly
affect circuit performance or reliability. Contact Linear
Applications Engineering for assistance.
REVISION HISTORY
ECO
R6
100K
1
2
5
6
2
4
3
4
3
3
VCC
32
ION
31
VRNG
N/C
30
3
4
PGOOD
N/C
29
5
M/S
N/C
28
6
ITH
BOOST
27
7
FB
10K
INTVCC R17 OPT
1000pF
INTVCC
INTVCC
R19 OPT
SHUTDOWN
JP2
RUV1
1M 1%
PLL/LPF
9
SS/TRACK
26 TG
SW
25
SENSE+
24
10
N/C
N/C
23
11
N/C
N/C
22
12
SDB
N/C
21
13
UVIN
SENSE-
20
14
NDRV
BGRTN
19
15
EXTVCC
16
INTVCC
CC1 27pF
3
C6
1
CIN3
1uF
100V
CIN4
1uF
100V
CIN5
1uF
100V
VIN
CIN6 14V-60V
1uF
100V
4
0.1uF
TP2
GND
C13
R20
OPT
OPT
Q1
Si7850DP
R24 0
L1 5.6uH
D1
COUT3
10uF
B1100 16V
4
C2
17
DRVCC
R21
0
18 BG
BG
C
TP5
VOUT
COUT4
10uF
16V
COUT1
270uF +
16V
VOUT
12V/10A
+
COUT2
270uF
16V
1uF
33
VIN
8
R15 0
TG
Si7850DP
D2
BAS19W
TP1
CIN2
+ 220uF
63V
1
2
3
RC2
GND
VIN
CIN1
+ 220uF
63V
5
6
7
8
CC3
TP8
VIN
Q2
5
6
7
8
N/C
1
2
3
4
N/C
VON/NC
CSS
3
1
3
SS/TRACK
OFF
TP9
OPT
OPT
2
0.01uF
2
Q8
OPT
3
C4
JP1
2
ON
Q7
OPT
1
D
R5 0
MODE/SYNC
TP10
C1
R12
0
1uF
220pF 100K 1%
C5
INTVCC
B
R11 OPT
R9
NDRV
C7
0.1uF
C3
R13
OPT
0
R22
0.015
1%
0
VOUT
Q4
OPT
TG
OPT
OPT
RFB1
14K
B
TP7
BGRTN
4
R8
0
TP12
VOUT
TPX
Q5
Si7850DP
1%
BG
+ C8
4
+ C9
OPT
OPT
+ C12
OPT
C10
C11
OPT
OPT
1
2
3
RFB2
1K
1%
RF
TP6
GND
1
2
3
CF
R23
0.015
1%
VIN
R18 OPT
VOUT
0.1uF
5
6
7
8
RC
1
CC2
RUV2
66.5K
1%
5
6
7
8
TP4
Q6
OPT
1
VIN
U1 LTC3810EUH-5
1
MODE/SYNC
R10
NDRV
INTVCC
C
Q3
ZXMN10A07F
1
VIN
100pF
OPT
TP3
PULSE SKIP
SYNC
FORCE
CONTINUOUS
R16
OPT
2
INTVCC R4
R1
39.2K
1%
SGND
PGOOD
R14
100K
CON
TP11
VIN
VIN
RON
274K
1%
OPT
APPROVED
11/12/07
2
4
D
R3
DATE
PROTO
VIN
VIN
R2
10K
DESCRIPTION
2
INTVCC
VLOGIC
REV
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCE ON ANGLE - - 2 PLACES - - - 3 PLACES - - INTERPRET DIM AND TOL
PER ASME Y14.5M -1994
A
THIRD ANGLE PROJECTION
CONTRACT NO.
APPROVALS
DRAWN MEI
DATE
09/21/06
TECHNOLOGY
SCH, LTC3810EUH-5, HIGH EFFICIENCY HIGH VOLTAGE
STEP-DOWN CONVERTER
ENGINEER
SIZE
DESIGNER
CAGE CODE
DWG NO
4
3
Wednesday, January 02, 2008
2
SCALE: NONE
REV
DC1168A
Custom
5
A
TITLE
CHECKED
APPROVED
DO NOT SCALE DRAWING
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
FILENAME: 1168A-2.DSN
SHEET
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