DC2015A - Schematic

E
D
C
B
C1
4700pF
250V
Murata
1812
D
D
D2
C25
3.9nF
250V
Murata
0805
CMMR1U-02
+VIN
36V to 72V
E1
L3
1µH
XAL6030-102MEC
Coilcraft
C4
4.7µF
100V
1210
C3
+ 10µF
E3
VIN
100V
C2
4.7µF
100V
1210
C23
4.7µF
100V
1210
-VIN
R1
86.6k
1%
1
GND
3
UVLO
VIN
NC
OVLO
GATE
R8
1.43k
1%
SENSE
7
SYNC
9
R14
10k
5
11
18
20
14
0 Ohm
13
RDVIN
C13
4.7µF
R34
GND
C7
390pF
250V
Murata
0805
Q1
10.0
1%
C12
0.01µF
R19
20.0k
1%
R39
61.9k
1%
R11
0.010
1%
0815
FSW
GND
INTVCC
10
R36
10k
8
INTVcc1
(Opt)
LPS4414
C17
4.7µF
16V
0805
FBX
SS
SOUT
RT
DFLT
GND
6
5
21
C16
0.1µF
R26
41.2k
1%
11
0 Ohm
R12
CSW
PGOOD
E8
22nF
7
14
VIN
C5
47µF
16V
1210
R4
10k
C10
FB
C9
+ 470µF
16V
COMP
FSW
E7
-VOUT
C27
(Opt)
R5
11
LT8311EFE#PBF
5
D1
(Opt)
SMA
E4
R3
100k
1%
PGOOD
U2
3
C24
47µF
16V
1210
13
SGND
SS
C6
47µF
16V
1210
+VOUT
12V / 12A
10
C14
11.3k
1%
R13
22nF
4.02k
1%
SGND
C
SGND
INTVcc
FG
CSW
Q2
FDMS86101
D3
3
2
CSW
(Opt)
SOT-23
GND
16
R32
178
1%
0805
R22
1
R23
0 Ohm
(Opt)
R17
0 Ohm
CG
PMODE
OPTO
20
C28
(Opt)
CSP
CSN
TIMER
18
12
INTVCC
6
INTVcc
R28
C18
3.9nF
178
1%
INTVcc1
B
L2
1
(Opt)
0805
Q3
BSC042NE7NS3G
16
15
R9
SGND
R18
113k
1%
R27
100k
SGND
(Opt)
0805
R35
INTVcc1
C15
100pF
16V
0805
SGND
CSW
R10
SYNC
VC
2
8µH
Champs Tech.
PQA2050-08-LTC
0 Ohm
R7
E6
E2
1
CSW
6
C11
1µF
100V
0805
VOUT
L1
1
C
E5
7
U1
LT8310EFE#PBF
R6
1.74k
1%
R33
20k
1206
T1
PA0423
2
A
R29
499k
1%
GND
SYNC
8
9
R21
(Opt)
15
R16
3.32k
1%
21
SGND
C19
4.7µF
16V
0805
GND
R37
499
1%
B
SGND
T2
PA3493NL
C20
1
6
3
4
220pF
R38
4.02k
1%
C26
1µF
R30
560
GND
4
1
3
2
ISO1
PS2801C-1-P-A
A
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
SGND
D
C
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
48Vin to 12V/12A
Forward Converter in 1/8 Brick
SIZE
C:\PADS PROJECTS\2015A(LT8311EFE)\SCH\2015A_REV3.DSN
IC NO.
REV.
LT8310EFE/LT8311EFE
3
DEMO CIRCUIT 2015A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
E
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
SCALE = NONE
B
MODIFY DATE:
Oct 28, 2014
SHEET
A
1
OF 1
A
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