DC1936A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
R1
C1
1uF
VIN
19
VSENSE0+
RUN0
VSENSE0-
RUN1
FB0
SHARE_CLK
COMP0
OPT
R47
OPT
ISENSE1ISENSE1+
39
IAVG0
31
IAVG1
C36
OPT
IAVG0
TG1/PWM1
IAVG1
C35
OPT
BG1/EN1
R33 10k
C31
C32
2
VCIN
SMOD#
4
5
41
3
VDRV
BOOT
6
CGND
GND
GH
1
R28
0
0
C
3.3nF R36
357
R45
0
VSENSE1+
33
32
27
28
R44
0
R48
0
TG1_PWM1
R49
5V_BIAS
0
C33
1uF
10
9
42
8
C40
22uF
1210
VIN
VIN
VIN
NC
C39
22uF
1210
11
FDMF6820A
12
13
14
SW1
15
16
17
18
OPTIONAL FOR 2-PHASE OPERATION
R51
10
C34
2.2uF
16V
PAD4
19
20
C66
R52
2k
C37
1uF
VIN
FSW=500kHz
U3
R55
PAD5
VIN
PWM
VIN
DISB#
VIN
NC
VIN
CGND
VSWH
GL
PGND
VSWH
PGND
VSWH
PGND
VSWH
PGND
VSWH
PGND
0.22uF
TG1_PWM1
VSWH
B
1.21k
R56
10K
+
C42
470uF
OPT
40
R43
39
+
+
C43
470uF
OPT
C44
470uF
OPT
E8
0
38
VOUT1
E9
GND
37
36
35
34
33
32
PAD6
VOUT1
L2
0.22uH
J5
VOUT1
ADJ, MAX 30A
PULSE
PA0515.221
SW1
+
C45
C46
100uF 100uF
1210
1210
C47
100uF
1210
C48
100uF
1210
C41
470uF
D3L
+
R63
30
1W
+
C49
470uF
D3L
C50
470uF
D3L
J4
31
GND
0
VCOMP0
PGND
VCOMP1
VDD33
R59
0
R60
0
R98
0
21
VFB1
IAVG0
IAVG1
VSENSE1+
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
2. INSTALL SHUNTS AS SHOWN.
CUSTOMER NOTICE
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.
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
R27
PAD7
R54
1
VSENSE0+
C21
470uF
OPT
0.22uF
VFB1
34
IAVG_GND
A
PHASE
330pF
30
B
R58
+
C20
470uF
OPT
SGND AND PGND
CONNECTED AT
A SINGLE NODE
NEAR U2
2
R46
PHAS_CFG
+
C19
470uF
OPT
1
OPT
29
Q2
33pF
VCIN
R42
GND
+
SMOD#
OPT
21
FB1
VSENSE1+
J6
1.21k
Q1
C29
10nF
C30
VCOMP1
FREQ_CFG
R8
31
R12
30
1W
PLACE Q1,Q2 NEAR L1,L2. RESPECTIVELY
C28
10nF
3
VOUT0_CFG
VOUT1_CFG
C15
470uF
D3L
VSWH
VSWH
VSWH
R41
20
COMP1
C14
470uF
D3L
330pF
2
ASEL0
ASEL1
C23
470uF
D3L
43
29
30
OPT
C26
33pF
3
R40
1
VDRV
OPT
19
C12
100uF
1210
VSENSE0-
VCOMP0
R30 10k
PGND
R39
18
C11
100uF
1210
C9
C10
100uF 100uF
1210
1210
32
+
VOUT0-
40
7
OPT
33
+
E7
PHASE
OPT
R38
VOUT0
ADJ, MAX 30A
+
357
PGND
R35
OPT
J3
PULSE
PA0515.221
34
VOUT0+
C25 3.3nF R29
23
OPT
R37
VOUT0
E6
GND
R34
TSNS1
PAD3
36
28
17
35
35
4
16
17.4k
41
R31
IAVG_GND
16.2k
SW0
L1
0.22uH
VSENSE0+
BOOT
Address=4C
R32
38
36
C24
C27
WP
39
37
37
SYNC
5
VDD25
PGND
26
4
22
GPIO1
TSNS0
1
OFF
ISENSE0-
40
38
PGND
23
GPIO0
PAD8
27
3
8
SYNC
2
ISENSE0+
0
5
41
24
SHARE_CLK
LTC3882EUJ
R26
6
CGND
GND
15
RUN1
BG0/EN0
7
PGND
14
RUN0
0
26
13
GPIO1B
C
VSWH
PGND
12
GPIO0B
ALERT
PGND
25
11
ALERTB
VSWH
TG0_PWM0
TG0/PWM0
U2
SDA
VSWH
PGND
6
SDA
SCL
PGND
PGND
10
VSWH
24
9
SCL
R21
VCC
R19
R20
4.99K 4.99K
VDD25
R18
10K
VINSNS
25
R17
10K
VDD33
R16
10K
PGND
R6
10K
VSWH
VSWH
VSWH
18
C18
4.7uF
1uF
20
R15
10K
12-10-14
PAD2
43
29
30
C17
C16
2.2uF
VSWH
PGND
17
PGND
28
16
E29
GL
PGND
E5
VSWH
27
VCC
CGND
PGND
VDD25
VIN
26
SW0
NC
PGND
15
VIN
PGND
14
E4
VDD33
13
25
FDMF6820A
GND
PWM
DISB#
GH
E3
R14
10K
HAORAN W.
DATE
6-14-14
D
VIN
PGND
VDD25
VCC
R13
10K
YI S.
1uF
VIN
21
VDD33
12
24
U1
23
11
E2
GND
7
10
9
42
8
VIN
VIN
VIN
NC
C7
22uF
1210
PGND
C6
22uF
1210
22
C8
100nF
PGND
J2
C5
+
330uF
16V
SVP
GND
WP ON
JP5
R4
2k
APPROVED
C3
22
C4
+
330uF
16V
SVP
PRODUCTION
PRODUCTION ASSEMBLY
2
R3
10
R5 1
VIN
7V - 14V
D
C2
2.2uF
16V
PAD1
VIN
VIN
J1
DESCRIPTION
2
5V_BIAS
0
E1
VIN
REV
__
TG0_PWM0
2
TECHNOLOGY
HZ
YI S.
TITLE: SCHEMATIC
DUAL/POLY-PHASE HIGH PERFORMANCE
DC/DC CONVERTER WITH DIGITAL POWER 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.
2
DEMO CIRCUIT 1936A
Tuesday, February 03, 2015
SHEET 1
1
OF 3
5
4
3
2
1
ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN
E10
GPIO1B
ALERTB
SDA
SHARE_CLK
SCL
R64 0
SYNC
GPIO1B
D
E12
E13
E14
E15
3
SYNC
ALERTB
SDA
SCL
D
2
JP1
E11
1
R65
OPT
C
NC
GPIO0-GPIO1
E16
GPIO0B
R66 OPT
SHARE_CLK
GPIO0B
D8
OPT
D7
OPT
R67
OPT
E17
RUN0
R68 0
J10
C54
R79
4.99K
2
3
4
VCC
A1
WP
A2
SCL
VSS
SDA
R71
RUN1
C
NC
RUN0-RUN1
OPT
RUN1
VDD33
R80
4.99K
J15
VDD33
DEMO HEADER (M)
7
EEWP
EESCL
5
EESDA
0603
SW3
RUN1
R73 10k
SW4
RUN0
R69
10
0603
ON
0603
5
OFF
2
ON
5
2
R104
10
0603
C
OFF
C38
10nF
0603
C51
10nF
0603
E19
J14 DEMO HEADER (F)
GND
R103
OPT
1206
8 AUXVCC
6
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
6
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
4
1
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
100nF
U4
A0
R70
OPT
E18
1
R72 10k
TO DC1613A
1
R105
0
R107
OPT
6
3
C
JP2
3
1
2
3
4
5
6
7
8
9
10
11
12
AUXP
SDA
GND
SCL
LGKPWR
ALERTB
GPIO_1
OUTEN_0
OUTEN_1
GND
AUXSCL
AUXSDA
RUN0
3V3
2
3V3
VIN
VIN
R76
OPT
R77
OPT
24LC025-I/ST
3V3
3V3
3V3
B
2
E20
GND
R96
200
R97
200
D3
GPIO0
VDD33
B
TP0101K
TP0101K
Q13
GPIO1
3
2
GREEN
GREEN
D5
Q15
2N7002A
1
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
R61 10K
R100
127
CUSTOMER NOTICE
5
VCC
2N7002A
R62
15.8K
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.
A
ALERTB
RED
2
GPIO1B
2
GPIO0B
1
Q16
1
3
3
3
D4
Q14
3V3
1
ALERTB
3
TECHNOLOGY
HZ
YI S.
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
DUAL/POLY-PHASE HIGH PERFORMANCE
DC/DC CONVERTER WITH DIGITAL POWER MANAGEMENT
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
REV.
LTC3882EUJ
DEMO CIRCUIT 1936A
Wednesday, December 10, 2014
1
2
SHEET 2
OF 3
A
5
4
3
2
OPTIONAL FOR DISCRETE DRIVER AND FETS
1
OPTIONAL FOR DISCRETE DRIVER AND FETS
VIN
VIN
D2
Q4
RJK0305DPB
5
Q3
RJK0305DPB
0
CIN1
22uF
16V
1210
2
CIN2
22uF
16V
1210
R83
5V_BIAS
U5
4
CIN4
22uF
16V
1210
VLOGIC
BG
8
2
SW1
IN
GND
Q7
RJK0330DPB
3
Q8
RJK0330DPB
7
VDD33
R102
4
4
VCC
TS
VLOGIC
BG
2
SW0
3
Q9
RJK0330DPB
5
GND
1
2
3
1
2
3
IN
Q10
RJK0330DPB
4
4
4
GND
C57
2.2uF
9
1
2
3
1
2
3
1
4
TG0_PWM0
C58
2.2uF
TG
0
6
GND
BOOST
5
TS
4
5
TG
VCC
4
C56
0.22uF
1
2
3
5
TG1_PWM1
U6
1
2
3
1
2
3
BOOST
0
6
CIN3
22uF
16V
1210
LTC4449EDCB
R85
2.2
1
5
R101
4
C55
0.22uF
5
7
Q6
RJK0305DPB
1
2
3
LTC4449EDCB
VDD33
Q5
RJK0305DPB
0
5V_BIAS
R84
2.2
8
1
5
R82
D
D1
1
5
2
5
D
9
C
C
VIN
VIN
VIN
11
3
C67
3
5V_BIAS
C63
10uF
0.1uF
E22
GND
1206
VOUT1
VOUT2
VOUT1
VOUT2
10
7
6
C64
0.01uF
C60
10uF
1206
C65
0.01uF
1
BYP1
BYP2
JP4
ON
VCC
OFF
2
VOUT0
8
DYNAMIC LOAD CIRCUIT 1
DYNAMIC LOAD CIRCUIT 0
R57
50
Q11
RJK0305DPB
R99
VOUT0
C61
2.2uF
Q12
RJK0305DPB
E23
4
PULSE0 IN
E24
R88
10K
E25
DO NOT EXCEED 5% DUTY CYCLE!
IOUT0
TST
R91
6.19K
R89
10K
GND
NOTE:
PULSE OUT
10mV / AMP
E26
IOUT1
TST
R93
0.01
NOTE:
PULSE OUT
10mV / AMP
R95
2K
B
17
2
VOUT1
9
GND
ADJ2
GND
ADJ1
5
R94
2K
B
NC
16
R92
0.01
J12
1
C62
2.2uF
E28
GND
E27
50
4
PULSE1 IN
DO NOT EXCEED 5% DUTY CYCLE!
R90
6.19K
VOUT1
J11
1
2
3
4
5
4
E21
SHDN2
5
OFF
SHDN1
1
2
3
15
2
3
4
5
2
3
ON
5V_BIAS
5
1
VCC
1
2
3
12
R87
10K
VIN2
13
VIN2
JP3
C59
U7
1uF
LT3029IMSE
2
1
5V_BIAS
VIN1
D6
VIN1
1
R86
10K
14
VIN
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
APP ENG.
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
3
2
TECHNOLOGY
HZ
YI S.
TITLE: SCHEMATIC
DUAL/POLY-PHASE HIGH PERFORMANCE
DC/DC CONVERTER WITH DIGITAL POWER 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.
2
DEMO CIRCUIT 1936A
Wednesday, December 10, 2014
1
SHEET 3
OF 3
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