DC2001A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
PGOOD
REV
DESCRIPTION
PROD
1
E1
APPROVED
JOSHUA Y.
INTVCC1
PGOOD
INTVCC1
DATE
06/11/12
R1
100K
R2
OPT
ILIM
VOUT
D
D
Q3A
BSC014N04LSI
R3
OPT
R4
VIN
R5
C3
9
VIN
R20
C10
0.01uF
VOUT
RUN
R22
38.3K
1%
1
2
OFF
0
E2
VIN+
TG1
25
24
SW1
ILIM
PGOOD
26
27
23
20
19
C4
1uF
16V
CIN1A
22uF
25V
1812
0.003
2512
123
0.1uF
17
15
INTVCC1
CIN4A
22uF
25V
1812
+ CIN5
330uF
35V
330uF
35V
E4
E11
CIN2B
22uF
25V
1812
CIN3B
22uF
25V
1812
C
GND
CIN4B
22uF
25V
1812
INTVCC1
Q2A
BSC014N04LSI
123
EXTVCC1
123
R13
4
4
Q2B
BSC014N04LSI
0
5
SNS2-
L1
1.0uH
Q1A
BSC014N04LSI
OPT
VIN
E8
GND
RSNS4
E13
0.003
2512
4
4
EXTVCC
RSNS3
SER2010-102ML
COILCRAFT
Q1B 1 2 3
OPT
E10
OPT
EXTVCC2
R16
BAS140W
VOUT+
B
E19
0
5
5
E14
C16
VOUT
COUT1A
22uF
25V
1812
0.01uF
VIN [3]
5V - 24V
+ CIN6
VIN
CIN1B
22uF
25V
1812
C9
4.7uF
25V
0805
16
CIN3A
22uF
25V
1812
GND
123
EXTVCC1
C7
18
CIN2A
22uF
25V
1812
GND
2.2
C14
R29
0
RSNS2
VOUT
1000pF
R28
12.1K
1%
VFB
4
E3
E6
R21
22.1K
R27
0
4
VIN
RSNS1
Q4B
BSC014N04LSI
5
R26
10pF
SNS1-
5
123
C15
R25
12.1K
1%
COUT3
+ 330uF
35V
0
R10
OPT
R11
D2
232K 1%
3
JP2
VIN
R18
10pF
R24
R23
ON
VBIAS
C13
VIN
RUN
R8
21
C11
0.1uF
C12
OPT
RUN
E12
BOOST2
SENSE2+
10
B
28
R17 10
10K
JP1
BG2
SENSE2-
Q4A
BSC014N04LSI 5
GND
8
C8
0.1uF
TG2
SNS2-
INTVCC
SS
INTVCC1
29
R19
4
0.01uF
R14 0
3
BURST MODE (BM)
SS
EXTVCC
RUN
7
14
10K
C32
SW2
2
SGND
6
0
NC
R15
R12
PGND
13
FCC
PULSE SKIP (PS)
1
PLLIN/MODE
SGND 5
RUN
VFB
INTVCC1
MODE
C6
OPT
SENSE2+
C5
10pF
COUT5B
22uF
25V
1812
123
SER2010-102ML
COILCRAFT
D1
22
CLKOUT
4
CLKIN
VIN
PHSMD
3
E9
BOOST1
FREQ
2
12
CLK
C
COUT4B
22uF
25V
1812
E18
BAS140W
BG1
ITH
1
11
0
SENSE1-
R9
U1
LTC3787EUFD
SENSE1+
OPT
OPT
R47
OPT
C2
0.1uF
FREQ
10
E5
PHASMD
COUT5A
22uF
25V
1812
L2
1.0uH
SENSE1+
INTVCC1
PHASMD
4
123
SENSE1-
10
INTVCC1
R7
4
C1
0.01uF
R6
R46
OPT
5
COUT4A
22uF
25V
1812
0
10
SNS1-
Q3B
5
OPT
COUT2A
22uF
25V
1812
COUT1B
22uF
25V
1812
COUT2B
22uF
25V
1812
COUT6
+
330uF
35V
VOUT [2]
24V / 12VIN
TO 30A
E15
GND
E16
ITH
GND
GND
E17
MASTER
A
CUSTOMER NOTICE
NOTES: UNLESS OTHERWISE SPECIFIED,
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
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
1. ALL CAPACITORS AND RESISTORS ARE 0603.
[2] - FOR VIN < VOUT ONLY
[3] - SURGE VOLTAGE UP TO 30V
TECHNOLOGY
MI/RB
JOSHUA Y
TITLE: SCHEMATIC
HIGH CURRENT 4-PHASE SYNCHRONOUS
BOOST CONVERTER
SIZE
C:\DESIGN\20\2001A-1\2001A-1.DSN
N/A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
SCALE = NONE
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
LTC3787EUFD
DEMO CIRCUIT 2001A
01/29/13 06:36:18
SHEET 1
1
REV.
1
OF 2
A
5
4
3
2
1
VOUT
Q7A
BSC014N04LSI
D
R30
ILIM PGOOD
COUT7A
22uF
25V
1812
Q7B 5
OPT
5
4
4
COUT8A
22uF
25V
1812
COUT7B
22uF
25V
1812
COUT8B
22uF
25V
1812
+
COUT9
330uF
35V
D
0
VIN
123
123
R31 10
R32
SENSE3-
10
R41
10
23
TG1
25
24
SW1
ILIM
PGOOD
26
27
INTVCC
SS
BG2
SENSE2-
BOOST2
SENSE4+
C28
OPT
VIN
R34
19
C21
1uF
16V
5
0.003
2512
CIN8A
22uF
25V
1812
CIN9A CIN10A
22uF
22uF
25V
25V
1812
1812
+ CIN11
+ CIN12
330uF
35V
330uF
35V
Q8B
BSC014N04LSI
4
0
VIN
123
VOUT
CIN7B
22uF
25V
1812
2.2
CIN8B
22uF
25V
1812
CIN9B CIN10B
22uF
22uF
25V
25V
1812
1812
C
EXTVCC2
C23
18
0.1uF
17
INTVCC2
C25
4.7uF
25V
0805
16
15
Q6A
BSC014N04LSI
R40
D4
INTVCC2
123
4
123
4
Q6B
BSC014N04LSI
0
5
BAS140W
5
L3
1.0uH
Q5A
10pF
B
CIN7A
22uF
25V
1812
RSNS6
5
123
OPT
R35
20
C27
0.1uF
C29
VBIAS
GND
SENSE4C26
0.01uF
VIN
EXTVCC
RUN
Q8A
BSC014N04LSI
R33
4
D3
21
29
R39 10
8
SGND
TG2
0
SNS4-
7
C24
0.1uF
PGND
14
R38
6
0.01uF
PLLIN/MODE
9
C22
10pF
C33
SS
22
CLKOUT
SENSE2+
RUN
100
SGND 5
PHSMD
SW2
R37 0
VIN
NC
4
CLK
BG1
ITH
3
CLKOUT
BOOST1
RSNS5
SER2010-102ML
COILCRAFT
INTVCC2
BAS140W
FREQ
13
2
12
1
E7
SENSE1+
SENSE1-
U2
LTC3787EUFD
C20
OPT
R36
28
OPT
11
FREQ
VFB
PHASMD2
R49
OPT
C
C19
0.1uF
C18
10
R48
OPT
VIN
SNS3-
L4
1.0uH
SENSE3+
C17
0.01uF
SNS3-
INTVCC2
BSC014N04LSI
R42
0
R43
RSNS7
SER2010-102ML
COILCRAFT
4
RSNS8
Q5B 1 2 3
OPT
123
VIN
SNS4-
0.003
2512
4
B
0
VFB
C30
5
VOUT
5
1000pF
ITH
R44
R45
0
22.1K
C31
COUT10A
22uF
25V
1812
0.01uF
COUT11A
22uF
25V
1812
COUT10B
22uF
25V
1812
COUT11B
22uF
25V
1812
+
COUT12
330uF
35V
SLAVE
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S 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
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
APPROVALS
PCB DES.
MI/RB
APP ENG.
JOSHUA Y
TECHNOLOGY
TITLE: SCHEMATIC
HIGH CURRENT 4-PHASE SYNCHRONOUS
BOOST CONVERTER
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC3787EUFD
DEMO CIRCUIT 2001A
12/17/12 06:13:00
SHEET 2
1
REV.
1
OF 2
A
Similar pages