DC2291A - Schematic

5
4
3
2
1
REVISION HISTORY
C1
ECO
VDR
1uF
R2
24.9K
C21
3
TSNS1_1
29
COMP0_1
R30 4.32k
VOUT1_CFG
FB1
FREQ_CFG
VSENSE1+
PHAS_CFG
ISENSE1-
IAVG0
9
VIN
6
8
NC
VIN
4
29
PVCC
SW
SW
100uF
1206
C41
100uF
1206
100uF
1206
+
+
C15
OPT
+
C16
OPT
+
C17
470uF
+
C18
470uF
C55
470uF
21
25
SW
PGND
100uF
1206
C29
0.22uF
R16 0
J4
GND
C
VOUT0+
BG1/EN1
ISNS1-_1
32
ISNS1+_1
C31
P3
27
28
VDR
TG1_1
VDR
1uF
C35
1uF
C52
0.1uF
P10
41
1
R57 1k
31
R58 1k
2
VDR
R41
0
27
0603
ASEL1_1
R32 5.76k
0603
VOUT0_CFG_1
VOUT0-
VSENSE0+_1
33
R15
24.9K
3
IAVG1
TG1/PWM1
34
28
PWM
VIN
VIN
VIN
ZCD#
VIN
GL
BOOT
VIN
AGND
GL
PHASE
GL
SW
PGND
SW
PGND
PGND
SW
PGND
SW
SW
SW
C34
22uF
1206
10
11
TSNS1_1
B
33
5
7
C48
10nF
R25 0
Q6
MMBT3906LT1G
C36
100nF
VOUT0
16
17
18
19
20
L2
0.17uH
FP1007R3-R17-R
R27
1.5k
C43
C38
C39
C40
C50
C54
OPT
1206
100uF
1206
100uF
1206
100uF
1206
100uF
1206
100uF
1206
+
C19
470uF
+
+
C26
OPT
+
C27
OPT
C28
470uF
+
C60
470uF
21
14
SW
22
R34 OPT
SW
U3 FDMF5820DC
R36 OPT
C33
22uF
1206
EN/FAULT#
VOUT1_CFG_1
R35 OPT
100uF
1206
C14
30
PGND
R33 OPT
C13
VSENSE0-_1
15
0603
OPT
1206
R7
1.5k
20
C12
VDD33_1
34
R31 24.9k
C23
E5
35
0603
19
VSENSE0+_1
SW
R29 24.9k
VOUT0
0.17uH
FP1007R3-R17-R
180
IAVG0_GND
ASEL0_1
L1
18
VSENSE0+_1
P4
VDD25_1
R9
2200pF
23
B
SW
26
VCC
4
COMP1
5
Address: 0x43
17
J3
GND
47pF
TSNS0_1
GND
31
C37
56pF
2
VOUT0_CFG
IAVG_GND
1K
VOUT0
VOUT0
E6
ASEL1
ISENSE1+
39
J18
MMBT3906LT1G
ASEL0
R26
IAVG0
Q1
16
9
PHAS_CFG_1
21
C32
10nF
100nF
VIN
WP
20
C11
0
J19
8
FREQ_CFG_1
19
5
7
R5
VFB0_1
C22 220pF
VIN
VOUT1_CFG_1
RUN0
R23 OPT
18
D
TSNS0_1
33
0603
COMP0_1
R12 7.32k
6
VOUT0_CFG_1
TSNS1
11
R24 0
NC
GPIO0B
17
C10
22uF
1206
10
C20
24
R20 10k 0603
ASEL1_1
16
DATE
HAORAN W. 11-17-15
0603
C30
WP
TSNS0
ASEL0_1
1
APPROVED
PRODUCTION
40
SYNC
SYNC
SHARE_CLK
VSENSE0-_1
SW
SW
R19 10k 0603
COMP0
VSENSE0+_1
35
SW
25
0603
FB0
SHARE_CLK
ISNS0-_1
SW
0603
RUN1
37
36
FDMF5820DC
29
WP
8
23
VSENSE0-
ISNS0+_1
PVCC
SYNC
ALERTB
24
RUN0
38
4
SHARE_CLK
VSENSE0+
U1
6
PGND
R17 2k
SDA
ISENSE0-
GPIO1
PGND
26
R14 2k
15
GPIO0
SW
12
R13 10k 0603
SCL
14
ISENSE0+
SW
PGND
PGND
PGND
R11 10k 0603
RUN0
BG0/EN0
LTC3882EUJ
28
32
13
R10 10k 0603
C
12
U2
SDA
ALERT
TG0/PWM0
TG0_1
SW
PGND
AGND
GPIO0B
VDD33_1
10
11
15
P9
7
PHASE
GL
PGND
SDA
ALERTB
34
BOOT
VIN
AGND
GL
14
E4
VDD25_1
SCL
VINSNS
SCL
VDD25_1
9
22
VDD33
VDD33_1
E3
VDD33_1
VDD25
25
GND
GL
22
35
SW
27
C9
4.7uF
VIN
26
C8
1uF
ZCD#
12
C7
1uF
E2
VIN
23
2
VDR
VIN
EN/FAULT#
24
P2
VDD33_1
PWM
C6
22uF
1206
SW
31
R60 1k
32
3
R59 1k
VCC
VDD25_1
DESCRIPTION
2
VIN
AGND
GND
VDD33_1
PGND
C5
0.1uF
6.3V
13
C4
330uF
16V
30
+
VCC
1
1
J2
C3
330uF
16V
13
D
+
VCC
R1
VIN
7V-14V
TMON
J1
AGND
C53
0.1uF
AGND
C2
1uF
P1
30
VIN
TMON
VDR
E1
VIN
REV
__
VIN
C42
0.22uF
FREQ_CFG_1
R37 24.9k
0603
R39 OPT
R38 9.09k
0603
PHAS_CFG_1
CUSTOMER NOTICE
R40 OPT
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
2. INSTALL SHUNTS AS SHOWN.
5
4
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.
HAORAN W. TITLE: SCHEMATIC
HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN CONVERTER
WITH POWER SYSTEM MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
3
TECHNOLOGY
HZ
2
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
DATE:
IC NO.
LTC3882EUJ
REV.
DEMO CIRCUIT 2291A
Tuesday, December 22, 2015
2
SHEET 1
1
OF 4
A
5
4
3
2
1
C77
VDD25_2
ASEL0_2
C70
56pF
R44 5.76k
0603
R55 OPT
9
VIN
6
8
NC
VIN
4
29
PVCC
32
AGND
AGND
SW
L3
18
0.17uH
FP1007R3-R17-R
19
R93
1.5k
20
VOUT1_CFG
FB1
FREQ_CFG
VSENSE1+
PHAS_CFG
ISENSE1-
IAVG0
IAVG1
TG1/PWM1
BG1/EN1
0.22uF
R110
24.9K
34
P7
VSENSE0+_1
1
33
R105
P8
32
R107
VDR
27
28
P12
1k
1k
31
2
27
35
34
28
PWM
R100OPT
C87
22uF
1206
VIN
EN/FAULT#
VIN
ZCD#
VIN
GL
GL
BOOT
VIN
AGND
PHASE
GL
SW
PGND
SW
PGND
PGND
SW
PGND
0603
VOUT0_CFG_2
R51 0
+
+
C69
470uF
+
C76
470uF
+
C79
OPT
+
C80
OPT
C99
470uF
C63
C64
C65
100uF
1206
100uF
1206
100uF
1206
C
+
+
C82
470uF
+
C83
OPT
+
C84
OPT
C100
470uF
U6 FDMF5820A
SW
SW
10
11
TSNS1_2
33
5
7
C73
10nF
R109 0
Q2
MMBT3906LT1G
C88
100nF
B
16
17
18
19
20
L4
0.17uH
FP1007R3-R17-R
R111
1.5k
C85
R50 OPT
C75
100uF
1206
C86
22uF
1206
0.22uF
VOUT1_CFG_2
R48 OPT
C74
100uF
1206
VIN
9
30
15
IAVG0_GND
R65 5.76k
R47 OPT
C72
OPT
1206
21
SW
SW
22
SW
23
25
SW
PGND
MMBT3906LT1G
VOUT0
17
VIN
C68
0.1uF
PGND
R64 24.9k
0603
ASEL1_2
Q3
16
1uF
C90
1uF
14
0603
VDR
29
VOUT0_CFG
5
R42 24.9k
C98
10nF
100nF
VDR
8
COMP1
GND
B
C71
C89
VIN
ASEL1
41
31
TSNS1_2
ASEL0
IAVG_GND
Address: 0x44
39
3
6
TSNS1
ISENSE1+
IAVG0
7
TSNS0_2
R45 0
C81
470uF
SW
PHAS_CFG_2
5
C94
C95
C96
OPT
1206
OPT
1206
OPT
1206
21
21
TSNS0_2
SW
20
FREQ_CFG_2
2
22
VOUT1_CFG_2
33
+
WP
NC
19
COMP0_1
SW
18
VOUT0_CFG_2
1
SW
17
ASEL1_2
11
SYNC
23
ASEL0_2
24
26
VCC
4
22
COMP0
C66
22uF
1206
10
C58
SHARE_CLK
TSNS0
16
40
SW
24
23
WP
FB0
VDD33_2
SW
29
8
RUN1
VSENSE0-_1
FDMF5820A
PVCC
R117 0
SYNC
VSENSE0-
U4
SW
24
RUN0
35
SW
PGND
VSENSE0+_1
25
R116 0
SHARE_CLK
VSENSE0+
28
SW
PGND
PGND
26
15
C
GPIO1
37
36
SW
PGND
4
RUN0
ISENSE0-
15
PHASE
GL
32
14
GPIO0
38
GL
BOOT
VIN
AGND
AGND
R115 0
ISENSE0+
34
GL
AGND
13
LTC3882EUJ
P11
VIN
SW
12
ALERT
6
ZCD#
PGND
GPIO0B
11
ALERTB
R114 0
BG0/EN0
7
VIN
26
VDD25_2
35
TG0/PWM0
U8
SDA
27
VIN
EN/FAULT#
12
10
SDA
2
PWM
14
VDD25_2
E8
SCL
1k
VDR
31
3
SCL
VINSNS
9
VDD25
25
VDD33
E7
VDD33_2
R103
1k
C67
22uF
1206
SW
R63
P6
VDD33_2
30
3
1
C25
4.7uF
12
C57
1uF
VCC
P5
TMON
C47
1uF
VIN
D
VCC
VDD25_2
PGND
VDD33_2
R3
24.9K
PGND
C51
4.7uF
6.3V
VDD33_2
C56
0.1uF
13
C24
330uF
16V
1uF
C97
1uF
30
+
VDR
VCC
C46
330uF
16V
1
TMON
+
R4
PGND
D
VDR
VIN
13
VIN
C92
C91
C93
OPT
1206
100uF
1206
OPT
1206
FREQ_CFG_2
CUSTOMER NOTICE
PHAS_CFG_2
A
R52 OPT
R53
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.
OPT
TECHNOLOGY
HZ
HAORAN W. TITLE: SCHEMATIC
HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN 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
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
DATE:
IC NO.
LTC3882EUJ
REV.
2
DEMO CIRCUIT 2291A
Tuesday, December 22, 2015
SHEET 2
1
OF 4
A
5
4
3
2
1
INTVCC
R49
RPG1
100k
1%
VIN
CIN1
22uF
35V
7343
+
CIN5
10uF
VCC
25V
1206
ON
VIN1
PGOOD1
D
2
SW1
13
2
14
E9
L5 4.7uH
7
CFFW1
22pF
R66
619k
1%
JP7
VIN2
VDR
FB1
2
OFF
3
9
4
PULSE IN
Max. 500mA
COUT8
0.1uF
16V
0603
R43
10K
0603
DO NOT EXCEED 5% DUTY CYCLE!
E24
J15
C49
1uF
0805
R46
0.01
2512
GND
NOTE:
PULSE OUT
10mV / AMP
R69
84.5K
1%
RUN2
IOUT
TST
1
GND
E11
12
1
ON
E23
VCC
COUT7
47uF
1206
RUN1
3
OFF
Q4
RJK0305DPB
VCC
1
2512
5
1
0.01
VOUT0
DYNAMIC LOAD CIRCUIT
2
3
4
5
LTC3622EDE
1
2
3
U7
VIN
D
JP5
J16
1
VOUT0
C59
0.1uF
0805
MODE/SYNC
VOUT0
C
2
3
4
5
3
C
E21
GND
E22
GND
4
D12
PHASE
PGOOD2
5
1
2
RUN0
VDR
SW2
6
8
R67
619k
1%
11
CFFW2
22pF
COUT9
47uF
1206
Max. 500mA
COUT10
0.1uF
16V
0603
E26
10
GND
R68
84.5K
1%
B
15
C61
1uF
INTVCC
GND
FB2
E25
VDR
ILIM
INTVCC
B
L6 4.7uH
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.
A
TECHNOLOGY
HZ
HAORAN W. TITLE: SCHEMATIC
HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN 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
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
DATE:
IC NO.
LTC3882EUJ
REV.
2
DEMO CIRCUIT 2291A
Tuesday, December 22, 2015
SHEET 3
1
OF 4
A
5
4
3
2
1
ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN
D
AUX3V4
ALERTB
SDA
SCL
SHARE_CLK
E10
E13
E14
VDD33_1
1
E16
2
VDD33_2
AUX3V4
SCL
GND
SDA
E17
E18
D9
1
SYNC
E15
D8
J17
D
SYNC
GPIO0B
2
ALERTB
4
3
2
1
SDA
SCL
SHARE_CLK
R73 0
GPIO0B
0603
D7
OPT
E19
RUN0
TO DC2086A
R71 0
C
1
2
3
4
5
6
7
8
9
10
11
12
100nF
R76
4.99K
0603
U5
2
3
4
VCC
A1
WP
A2
SCL
VSS
SDA
8 AUXVCC
7
EEWP
6
EESCL
5
EESDA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
C45 0603
A0
R83
0
0603
R92
OPT
TO DC1613A
1
0603
R77
4.99K
0603
VIN
OPT
R75
OPT
SGND
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
C
SW4
RUN0
ON
5
2
R70
10
0603
OFF
C44
10nF
0603
J12 DEMO HEADER (F)
R82
OPT
1206
R74
E20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J13DEMO HEADER (M)
24LC025-I/ST
R78
OPT
4
1
AUXP
SDA
GND
SCL
LGKPWR
ALERTB
GPIO_1
OUTEN_0
OUTEN_1
GND
AUXSCL
AUXSDA
3V3
6
3
3V3
J11
RUN0
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
B
B
E12
3V3
GND
3
3V3
VDD33_1
2
2
3V3
Q19
SI2365EDS
1
R81
200
0603
ALERTB
1
3
GREEN
VDD33_2
2
3
3
D5
Q22
SI2365EDS
SI2365EDS
Q20
GPIO0
VIN
2N7002A
R84
127
0603
2
GPIO0B
ALERTB
RED
1
D10
Q21
1
R86 10K
0603
R87
15.8k
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.
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.
A
TECHNOLOGY
HZ
HAORAN W. TITLE: SCHEMATIC
HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN 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
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
DATE:
IC NO.
LTC3882EUJ
REV.
2
DEMO CIRCUIT 2291A
Tuesday, December 22, 2015
SHEET 4
1
OF 4
A
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