DC2174A - Schematic

5
4
3
2
1
REVISION HISTORY
16
ASEL0
17
ASEL1
GPIO0B
18
VOUT0_CFG
GPIO1B
19
VOUT1_CFG
20
FREQ_CFG
RUN0
21
PHAS_CFG
TSNS1
COMP1
WP
31
IAVG1
R26 0603
C37
OPT
1
2
FB1
FREQ_CFG
VSENSE1+
PHAS_CFG
ISENSE1-
IAVG0
TG1/PWM1
IAVG1
C41
OPT
5
10k
BG1/EN1
R29 OPT
R9
820pF
29
C55
34
VSENSE1+
33
ISNS1-
32
ISNS1+
R18
9
VIN
6
8
NC
VIN
4
29
PVCC
32
AGND
AGND
SW
C17
OPT
C18
OPT
R16
0
0603
21
SW
SW
22
25
SW
PGND
C16
470uF
+
0.22uF
VOUT1-
C31
VDR
C35
VDR 1uF
TG1
1uF
C52
R15
0.1uF 24.9K
VIN
28
P3
31
2
27
PWM
C33
22uF
1210
VIN
EN/FAULT#
VIN
ZCD#
VIN
GL
BOOT
VIN
AGND
GL
PHASE
GL
SW
PGND
SW
PGND
PGND
SW
SW
C34
22uF
1210
10
11
TSNS1
B
33
5
7
C48
10nF
R25 0
C36
Q6
E9
MMBT3906LT1G
VSENSE1+
100nF
17
19
20
R22
0
0603
VOUT1
16
18
VOUT1+
L2
0.17uH
FP1007R3-R17-R
R27
1.5k
C43
C38
C39
C40
100uF
1206
100uF
1206
100uF
1206
100uF
1206
OPT
R67
OPT
R98
OPT
J9
VOUT1
ADJ. UP TO 2.5V
MAX 35A
+
+
C19
OPT
+
C26
470uF
C27
470uF
+
C28
OPT
J8
GND
21
SW
22
SW
23
24
25
26
12
PGND
PGND
13
14
SW
SW
SW
SW
SW
U3 FDMF5820DC
PGND
PGND
C42
COMP0
R62
C
VOUT0+
0.22uF
VDD33
FREQ_CFG
R40 OPT
C15
470uF
+
VFB1
OPTIONAL FOR 2-PHASE OPERATION
R39 OPT
100uF
1206
+
VSENSE1+
VOUT1_CFG
R38 OPT
100uF
1206
+
VSENSE0+
R34 OPT
R37 OPT
VOUT0
ADJ. UP TO 2.5V
MAX 35A
C14
820pF 499
COMP1
30
28
OPT
100uF
1206
C13
VSENSE0-
15
R61
100uF
1206
R7
1.5k
20
C12
C54 220pF
10pF
R32 OPT
COMP1
C23
TSNS1
C50
P4
R36 OPT
0.17uH
FP1007R3-R17-R
19
VSENSE0+
34
R35 OPT
18
499
35
R33 OPT
J3
L1
E8
3
27
C21
VDR
VOUT0_CFG
VOUT0
17
E7
10pF
ASEL1
R31 OPT
MMBT3906LT1G
16
VFB0
C22 220pF
1
R30 OPT
Q1
J4
R57 1k
ASEL0
C32
10nF
100nF
R24 0
R58 1k
VDD25
C11
0
C20
TSNS0
VOUT0_CFG
VOUT1_CFG
SW
5
7
R5
GND
R20 7.32k
ASEL1
SW
D
TSNS0
33
0603
COMP0
R12 7.32k
ASEL0
ISENSE1+
R23 OPT
VSENSE0-
DATE
6-12-14
C10
22uF
1210
40
C30
WP
RUN1
39
35
HAORAN W.
11
9
SHARE_CLK
VSENSE0+
FDMF5820DC
SW
26
VCC
4
COMP0
ISNS0-
SYNC
TSNS0
IAVG0
B
FB0
SHARE_CLK
37
36
APPROVED
PRODUCTION
10
VIN
R41 10k 0603
WP
SYNC
RUN1
ISNS0+
8
R28 10k 0603
23
VSENSE0-
SW
PGND
VIN
R21 10k 0603
8
SYNC
VSENSE0+
RUN0
PGND
U1
38
SW
PGND
6
ALERTB
GPIO1
PGND
NC
R19 10k 0603
24
SHARE_CLK
ISENSE0-
SW
29
R17 10k 0603
15
RUN1
SDA
C
R14 10k 0603
14
RUN0
GPIO0
GL
6
GND
R13 10k 0603
GPIO1B
SCL
ISENSE0+
41
R11 10k 0603
BG0/EN0
LTC3882EUJ
IAVG_GND
R10 10k 0603
13
ALERT
28
TG0
PHASE
PVCC
12
GPIO0B
VDD33
U2
SDA
7
BOOT
VIN
AGND
GL
26
11
TG0/PWM0
GL
PGND
10
SDA
ALERTB
15
VIN
14
E4
VDD25
SCL
34
ZCD#
3
9
SCL
VDD25
VINSNS
VDD33
22
VDD33
VDD33
E3
VDD25
25
GND
VIN
23
35
VIN
EN/FAULT#
24
27
C9
4.7uF
1uF
2
PWM
12
C8
VDR
31
4
C7
1uF
E2
R60 1k
C6
22uF
1210
SW
P2
30
3
VDD25
32
GND
R59 1k
VCC
VDD33
AGND
C5
0.1uF
6.3V
VDD33
AGND
C4
330uF
16V
PGND
+
VCC
1
1
J2
C3
330uF
16V
13
D
+
DESCRIPTION
1
VIN
30
R1
VIN
7V-14V
VCC
VIN
TMON
J1
P1
REV
__
C53
R2
0.1uF 24.9K
VIN
TMON
C2
1uF
VDR
E1
ECO
VDR
C1
1uF
E19
GND
VFB1
PHAS_CFG
A
IAVG0
CUSTOMER NOTICE
IAVG1
VSENSE0+
VSENSE1+
R100 OPT
GPIO0B
GPIO1B
R101 OPT
RUN0
RUN1
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
2. INSTALL SHUNTS AS SHOWN.
5
4
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
APP ENG. HAORAN W.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
2
TECHNOLOGY
TITLE: SCHEMATIC
HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT
SIZE
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
REV.
1
DEMO CIRCUIT 2174A
Wednesday, November 12, 2014
SHEET 1
1
OF 3
A
5
4
3
2
1
D
D
VIN
VIN
R48
0.01
2512
DYNAMIC LOAD CIRCUIT
VOUT0
2
4
E12
3
VCC
COUT7
10uF
C59
0.1uF
E14
1206
5
11
12
SHDN2
VOUT1
VOUT2
VOUT1
VOUT2
1
2
3
10
VDR
BYP1
BYP2
E10
ON
4
PULSE IN
OFF
DO NOT EXCEED 5% DUTY CYCLE!
R42
10K
0603
E11
6
J7
E13
R45
0.01
2512
VDR
8
R66
6.19K
COUT3
10uF
1206
IOUT
TST
1
C47
1uF
0805
GND
CBYP2
0.01uF
1
Q3
RJK0305DPB
7
CBYP1
0.01uF
GND
OPT
VOUT1
RSD2
JP4
10K VDR
VIN2
VIN2
13
SHDN1
VCC
C
VIN1
14
15
1
2
3
R53
1
2
3
OFF
U6
LT3029IMSE
JP6
VCC
ON
CIN1
1uF
D9
VIN1
RSD1
10K
1
VIN
C
2
3
4
5
VIN
NOTE:
PULSE OUT
10mV / AMP
E15
GND
R64
6.19K
J14
R63
2K
J10
1
VOUT0
VOUT1
VOUT0
C58
0.1uF
0805
C57
0.1uF
0805
1
VOUT1
2
3
4
5
GND
9
17
5
2
NC
R65
2K
ADJ2
GND
ADJ1
2
3
4
5
16
E16
B
B
GND
E17
GND
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
APP ENG. HAORAN W.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
2
TECHNOLOGY
TITLE: SCHEMATIC
HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT
SIZE
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
REV.
1
DEMO CIRCUIT 2174A
Wednesday, November 12, 2014
SHEET 2
1
OF 3
A
5
4
3
2
1
ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN
E27
GPIO1B
ALERTB
SDA
SCL
SHARE_CLK
E18
D8
J15
1
VDD33
D
4
3
2
1
AUX3V4
SCL
GND
SDA
E22
E23
R68 OPT
SYNC
GPIO1B
E24
JP1
2
E25
E26
3
AUX3V4
SDA
1
R91
OPT
C
NC
GPIO0-GPIO1
SYNC
ALERTB
2
AUX3V4
E28
D
GPIO0B
R73 0
SHARE_CLK
GPIO0B
SCL
0603
TO DC2086A
D7
OPT
D4
OPT
R90
OPT
E29
RUN0
R71 0
3
C45 0603
100nF
U5
A0
2
3
4
A1
WP
A2
SCL
VSS
SDA
R76
4.99K
0603
8 AUXVCC
VCC
7
EEWP
6
EESCL
5
EESDA
R78
OPT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VIN
R75
24LC025-I/ST
RUN1
RUN1
SGND
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
SW3
RUN1
ON
SW4
RUN0
5
2
R69
10
0603
ON
5
2
R70
10
0603
C
OFF
OFF
C29
10nF
0603
C44
10nF
0603
J12 DEMO HEADER (F)
R82
OPT
1206
VIN
R74
1
C
NC
RUN0-RUN1
OPT
E31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J13DEMO HEADER (M)
R77
4.99K
0603
R72
4
1
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
R83
0
0603
E30
6
3
R92
OPT
TO DC1613A
1
JP2
4
1
C
0603
6
3
AUXP
SDA
GND
SCL
LGKPWR
ALERTB
GPIO_1
OUTEN_0
OUTEN_1
GND
AUXSCL
AUXSDA
RUN0
3V3
1
2
3
4
5
6
7
8
9
10
11
12
2
3V3
J11
OPT
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
OPT
B
B
E21
GND
3V3
GPIO0
D6
Q22
1
VIN
D10
ALERTB
RED
VDD33
2
CUSTOMER NOTICE
R86 10K
0603
2N7002A
R84
127
0603
2
2N7002A GPIO1B
Q19
Si2365EDS
3
Si2365EDS
Q20
3
3
1
2
GPIO0B
3V3
1
GREEN
GREEN
Q21
A
ALERTB
3
D5
R80
200
0603
GPIO1
1
R81
200
0603
3V3
2
3V3
R87
15.8k
0603
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
APP ENG. HAORAN W.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
APPROVALS
3
TECHNOLOGY
TITLE: SCHEMATIC
HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT
SIZE
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
DATE:
IC NO.
LTC3882EUJ
REV.
1
DEMO CIRCUIT 2174A
Wednesday, November 12, 2014
SHEET 3
1
OF 3
A
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