VIN
TP4
RFB1
14K 1%
R24
0
U1 LTC3810EG
5
3
1
2
22
25
23
24
11
10
9
13
12
6
7
8
26
21
17
16
27
19
20
15
28
18
14
4
VRNG
NC
ION
NC
NC
SENSE+
NC
NC
SS_TRACK
PLL_LPF
VFB
SDB
SGND
PGOOD
MODE_SYNC
ITH
SW
SENSE-
INTVCC
EXTVCC
TG
BG
BGRTN
NDRV
BOOST
DRVCC
UVIN
VON
PU LSE SKIP
R5 OPT
COUT4
10uF
16V
CIN5
OPT
CC1 33pF
ON
INTVCC
VIN
C4
OPT
INTVCC
CIN4
1uF
100V
R11 OPT
CSS
1000pF
INTVCC
VCC
CONTINUOUS
12V 6A
BG
TG
R10
OPT
C1
1uF
CC4
OPT
C5
1uF
C7
0.1uF
R17 OPT
Q3
ZXMN10A07F
32
1
+
CIN2
68uF
100V
JP2
1 3
2
TP8
R18 OPT
CON
100pF
VIN
R3
0
L1 7.7uH
Q4
OPT
4
1
2
3
5
6
7
8
CIN6
OPT
R15 0
PGOOD
+
COUT5
OPT
BG
MODE/SYNC
TP9
C6
0.1uF
COUT3
10uF
16V
JP1
1
2
3
4
SS/TRACK
TP10
R22
0.012
1%
MODE/SYNC
VOUT
R12
0
R23
0.012
1%
Q1
Si7852DP
4
1
2
3
5
6
7
8
VLOGIC
SYNC
R14
OPT
RF
OPT
Q6
OPT
23
1
4
VOUT
VIN
TP6
Q8
OPT
2
3
14
5
6
+
COUT1
270uF
16V
C9
0.1uF
INTVCC
CF OPT
Q7
OPT
23
1
4
VOUT
RON
274K
1%
VIN
GND
Q2
Si7852DP
4
1
2
3
5
6
7
8
D2
BAS19W
13
VIN
TP3
A
DC952A
Tuesday, February 05, 2008
1
1
SCH, LTC3810EG, HIGH EFFICIENCY HIGH VOLTAGE
952A-4.DSNNONE
MI 08/22/05
STEP-DOWN CONVERTER
SIZE
SCALE:
CAGE CODE
DWG NO
REV
SHEET
OF
FILENAME:
TITLE
CONTRACT NO.
APPROVALS
DATE
DRAWN
CHECKED
APPROVED
ENGINEER
DESIGNER
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
R19 OPT
TP7
RUV2
33.2K
1%
R20
OPT
CIN3
1uF
100V
C2
0.1uF
R9 0
R13
0
Q5
OPT
4
1
2
3
5
6
7
8
VIN
INTVCC
R2
OPT
RUV1
470K
+
COUT6
OPT
R1
OPT
D1
B1100
TP5
CC3
0.01uF
SH UTDOWN
TG
C3
OPT
+
COUT2
270uF
16V
OPT
R8
0
FORCE
VOUT
VIN
TP1
RC
90.9K 1%
RFB2
1K
1%
TP2
R21
0
R4 0
OFF
R16
24.9K
1%
13V - 80V
+
CIN1
68uF
100V
GND
RC2
10K
INTVCC
Customer Notice:
Linear Technology has m ade a bes t effort to
des ign a circuit that m eets custom er-s upplied s pecifications ;
however, it rem ains the cus tom ers respons ibility to verify proper
and reliable operation in the actual application, Com ponent
s ubstitution and printed circuit board layout m ay significantly
affect circuit perform ance or reliability. Contact Linear
Applications Engineering for as sis tance.
This circuit is proprietary to Linear Technology and s upplied
for us e with Linear Technology parts .
PROD4
10/18/07
REVISION HISTORY
DESCRI PTION DATE APPROVEDECO REV
R6
100K
TP11
C8
OPT
VIN
INTVCC
CC2
220pF
VIN
VIN
