DC2312A - Schematic

5
4
3
2
1
REVISION HISTORY
39
IAVG0
PGOOD0
PGOOD1
30
IAVG1
C37
22pF
C41
22pF
PWM1
TSNS1
R20 OPT
28
29
COMP1
34
VSENSE1-
33
VSENSE1+
32
ISNS1-
31
ISNS1+
C55
R18
OPT
26
PWM1
P3
31
2
27
R34 OPT
0
R67
0
R98
0
41
9
VIN
6
8
NC
VIN
4
32
29
AGND
AGND
PVCC
SW
21
25
SW
PGND
26
12
SW
VIN
ZCD#
VIN
GL
BOOT
VIN
AGND
GL
PHASE
GL
SW
PGND
SW
PGND
PGND
SW
PGND
PGND
U3 FDMF5820DC
SW
SW
R16
0
0603
VOUT0-
C34
22uF
1210
11
TSNS1
B
33
5
7
C48
10nF
R25 0
C36
Q6
E9
MMBT3906LT1G
VSENSE1+
100nF
17
19
20
R22
OPT
0603
VOUT1
16
18
VOUT1+
L2
0.17uH
FP1007R3-R17-R
R27
2.67k
C43
C38
C39
C40
100uF
1206
100uF
1206
100uF
1206
100uF
1206
R35 OPT
+
C19
470uF
2.5V
+
C26
470uF
2.5V
+
C27
470uF
2.5V
C28
470uF
2.5V
J8
GND
0.22uF
R46
OPT
0603
IAVG1
VSENSE0+
R36 OPT
VSENSE1+
R99
FREQ_CFG
R37 OPT
VSENSE1R100 0
0603
FAULT0
R38 OPT
FAULT1
R101 0
PHAS_CFG
R39 OPT
RUN0
RUN1
R49 0
R40 OPT
VOUT0
5
CUSTOMER NOTICE
0
VSENSE0-
A
J9
VOUT1
ADJ. UP TO 2V
MAX 35A
+
VSENSE1VOUT1_CFG
C
VOUT0+
10
C42
VFB1
IAVG0
C18
470uF
2.5V
VIN
C33
22uF
1210
VIN
0603
VDD33
R62
C17
470uF
2.5V
VSENSE0+
EN/FAULT#
COMP0
R32 OPT
VOUT0_CFG
R33 OPT
28
PWM
14
R31 OPT
C16
470uF
2.5V
+
VDR
15
0
C15
470uF
2.5V
+
1uF
34
R61
100uF
1206
+
0.22uF
C52
R15
0.1uF 24.9K
35
COMP1
100uF
1206
+
C31
C35
VDR 1uF
P4
ASEL1
VOUT0
ADJ. UP TO 2V
MAX 35A
C14
VSENSE1+
1
OPTIONAL FOR 2-PHASE OPERATION
100uF
1206
C13
VFB1
R58 1k
ASEL0
100uF
1206
R7
2.67k
20
C12
OPT
R57 1k
R30 OPT
C23
VSENSE0-
OPT
VDR
R29 OPT
0.17uH
FP1007R3-R17-R
19
C54 OPT
C50
B
VDD25
18
E8
IAVG0
IAVG1
J3
L1
9
ISENSE1ISENSE1+
VOUT0
17
VIN
PHAS_CFG
RUN1
MMBT3906LT1G
16
VSENSE0+
SW
VSENSE1+
SW
25
VCC
4
VSENSE1FREQ_CFG
Q1
21
PHAS_CFG
VOUT1_CFG
C32
10nF
100nF
1.24k
8
21
FB1
R9
470pF
VIN
20
FREQ_CFG
3
C21
SW
VOUT1_CFG
RUN0
COMP1
VOUT0_CFG
C11
0
E7
10pF
TSNS0
22
19
5
7
R5
GND
2
ASEL0
ASEL1
D
TSNS0
33
0603
6
18
VOUT0_CFG
FAULT1
TSNS1
11
VFB0
NC
ASEL1
FAULT0
SHARE_CLK
C10
22uF
1210
J4
23
17
TSNS0
DATE
7-27-15
R24 0
29
16
ASEL0
1
HAORAN W.
10
C20
COMP0
R12 64.9K C22 220pF
C30
SYNC
SW
PVCC
SHARE_CLK
SHARE_CLK
COMP0
APPROVED
PRODUCTION
40
PGOOD1
5
R44 10k 0603
23
FB0
PGOOD0
VSENSE0-
SW
SW
R43 10k 0603
SYNC
SYNC
RUN1
35
FDMF5820DC
25
R41 10k 0603
8
VSENSE0-
VSENSE0+
4
R28 10k 0603
27
VSENSE0+
RUN0
ISNS0-
32
R21 10k 0603
PGOOD1
FAULT1
37
36
AGND
R19 10k 0603
6
ISENSE0-
ISNS0+
AGND
ALERTB
PGOOD0
FAULT0
38
SW
R17 10k 0603
15
RUN1
SDA
C
R14 10k 0603
14
RUN0
ISENSE0+
PGND
R13 10k 0603
FAULT1
SCL
LTC3882EUJ-1
GND
R11 10k 0603
SW
PGND
U1
ALERT
SW
PGND
PGND
U2
SDA
IAVG_GND
R10 10k 0603
13
PGND
26
12
FAULT0
28
PWM0
SW
12
VDD33
7
PHASE
GL
PGND
11
PWM0
BOOT
VIN
AGND
GL
PGND
10
SDA
ALERTB
15
GL
14
E4
VDD25
SCL
34
VIN
3
9
SCL
VDD25
VINSNS
VDD33
22
VDD33
VDD33
E3
VDD25
24
GND
ZCD#
22
35
VIN
SW
27
C9
1uF
1uF
VIN
EN/FAULT#
SW
C8
2
PWM
24
C7
2.2uF
E2
VDR
31
23
P2
VDD33
GND
R60 1k
24
VCC
SW
VDD25
C6
22uF
1210
SW
VDD33
30
3
R59 1k
C5
0.1uF
16V
13
C4
330uF
16V
30
+
VCC
1
1
J2
C3
330uF
16V
VCC
D
+
TMON
R1
VIN
7V-14V
DESCRIPTION
2
VIN
PGND
VIN
13
J1
P1
REV
__
C53
R2
0.1uF 24.9K
VIN
TMON
C2
1uF
VDR
E1
ECO
VDR
C1
1uF
2512
VOUT1
4
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
2. INSTALL SHUNTS AS SHOWN.
3
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.
HZ
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG. HAORAN W.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
TECHNOLOGY
HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT
2
N/A
SCALE = NONE
VOUT1-
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
E19
DATE:
IC NO.
LTC3882EUJ-1
REV.
DEMO CIRCUIT 2312A-B
Thursday, October 29, 2015
SHEET 1
1
2
OF 3
A
5
4
3
2
1
D
D
VIN
VIN
PVIN2
5
5
1
VOUT1
13
VFB2
PGND2
SW2
J7
R45
0.01
2512
E13
VDR
COUT3
10uF
16V
0805
R66
887k
1%
CFFW2
22pF
COUT5
0.1uF
16V
0603
IOUT
TST
1
C47
1uF
0805
GND
6
Vishay
IHLP1616BZER4R7M11
R42
10K
0603
E11
VDR
C
NOTE:
PULSE OUT
10mV / AMP
E15
GND
12
SW1
GND
4
PULSE IN
L3
4.7uH
SGND
SGND
3
Vishay
IHLP1616BZER4R7M11
E10
9
RPG2
100k
7
R64
887k
1%
COUT7
10uF
16V
0805
OPT
Q3
RJK0305DPB
PGOOD1
GND
CFFW1
22pF
VOUT0
DYNAMIC LOAD CIRCUIT
DO NOT EXCEED 5% DUTY CYCLE!
PGND1
E14
COUT4
0.1uF
16V
0603
PGOOD2
17
E12
R48
0.001
2512
R53
L4
4.7uH
VCC
ON
OFF
2
3
4
5
RPG1
100k
VFB1
VCC
1
2
3
RSD2
5.1M
MODE/SYNC
2
C
16
SVIN
LTC3607EMSE
LTC3607PGOOD1
PVIN1
RUN1
U6
15
4
CF
0.1uF
0603
14
RSD1
5.1M
LTC3607PGOOD1
RUN2
OFF
JP4
VDR
RF
100
1
2
3
1
2
3
JP6
VCC
ON
11
CIN1
10uF
25V
1206
8
10
+ CIN3
22uF
35V
7343
J14
R63
121k
1%
C58
1uF
0805
1
VOUT1
C57
1uF
0805
2
3
4
5
R65
121k
1%
J10
VOUT0
VOUT1
2
3
4
5
1
VOUT0
E16
GND
E17
GND
B
B
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.
HZ
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG. HAORAN W.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
TECHNOLOGY
TITLE: SCHEMATIC
HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
2
N/A
SCALE = NONE
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.
LTC3882EUJ-1
REV.
DEMO CIRCUIT 2312A-B
Monday, August 10, 2015
SHEET 2
1
2
OF 3
A
5
4
3
2
1
ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN
E27
1
VDD33
D
AUX3V4
SCL
GND
SDA
4
3
2
1
SDA
SCL
FAULT1
SHARE_CLK
E18
D8
J15
ALERTB
E22
E23
R68 OPT
SYNC
FAULT1
E24
JP1
2
E25
AUX3V4
E26
3
SYNC
ALERTB
SDA
SCL
2
AUX3V4
1
R91
OPT
C
NC
FAULT0-FAULT1
SHARE_CLK
D
E28
FAULT0
R73 0
FAULT0
0603
TO DC2086A
R90
OPT
D7
OPT
D4
OPT
E29
RUN0
R71 0
TO DC1613A
C45 0603
100nF
R76
4.99K
0603
U5
WP
A2
SCL
VSS
SDA
7
EEWP
6
EESCL
5
EESDA
RUN1
E31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J13DEMO HEADER (M)
SGND
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
SW3
RUN1
ON
SW4
RUN0
5
R70
10
0603
ON
5
2
C
OFF
OFF
C29
10nF
0603
C44
10nF
0603
VIN
PSM STACKING CONNECTORS:
J12, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC
J13, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416
VIN
24LC025-I/ST
R74
OPT
R75
OPT
3V3
ALERTB
E21
3V3
1
Si2365EDS
Q20
FAULT0
3V3
Q19
Si2365EDS
Si2365EDS
Q21
3
R94
200
0603
2
B
1
Si2365EDS
Q22
D5
FAULT0
RED
D6
FAULT1
RED
GREEN
0603
Q24
1
2
2N7002A
PGOOD1
Q23
1
2N7002A
2
PGOOD0
R81
127
0603
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.
HZ
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG. HAORAN W.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
TECHNOLOGY
HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT
3
N/A
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
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
R80
127
0603
PGOOD1
D9
3
R86 10K
R87
15.8k
0603
ALERTB
RED
R84
127
0603
R93
200
0603
PGOOD0
GREEN
D11
1
VIN
D10
3V3
FAULT1
VDD33
3
3V3
3V3
1
3
GND
5
R69
10
0603
2
J12 DEMO HEADER (F)
R82
OPT
1206
B
A
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
4
A1
RUN1
C
NC
RUN0-RUN1
OPT
3
3
VCC
R77
4.99K
0603
R72
2
2
A0
8 AUXVCC
R78
OPT
3
1
RUN0
E30
1
6
3
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
R83
0
0603
4
1
C
R92
OPT
6
3
AUXP
SDA
GND
SCL
LGKPWR
ALERTB
GPIO_1
OUTEN_0
OUTEN_1
GND
AUXSCL
AUXSDA
JP2
0603
3
1
2
3
4
5
6
7
8
9
10
11
12
2
J11
3V3
2
3V3
DATE:
IC NO.
LTC3882EUJ-1
REV.
DEMO CIRCUIT 2312A-B
Monday, August 10, 2015
SHEET 3
1
2
OF 3
A
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