11
dc1936afa
DEMO MANUAL DC1936A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
SGND AND PGND CONNECTED AT A SINGLE NODE NEAR U2
7V - 14V
ADJ, MAX 30A
1210
SVP
16V
SVP
1210
16V
1210
1210
1210
D3L
1210
D3L
1210
1210
1210
1210
1210
D3L
1210
D3L
ADJ, MAX 30A
PLACE Q1,Q2 NEAR L1,L2. RESPECTIVELY
2. INSTALL SHUNTS AS SHOWN.
1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603.
NOTE: UNLESS OTHERWISE SPECIFIED
D3L
OPT
OPT
OPT
D3L
OPT
OPT
OPT
FSW=500kHz
ON
OFF
WP
OPTIONAL FOR 2-PHASE OPERATION
DC/DC CONVERTER WITH DIGITAL POWER MANAGEMENT
Address=4C
PA0515.221
PA0515.221
2
PRODUCTION ASSEMBLY
HAORAN W.
12-10-14
VIN
VOUT0
5V_BIAS
5V_BIAS
VIN
VIN
VOUT1
VDD25
VDD33
VDD25
VCC
VDD33
TG0_PWM0
SW0
TG0_PWM0
SW0
SW1
SW1
TG1_PWM1
IAVG0
IAVG1
IAVG_GND
RUN0
RUN1
GPIO1B
GPIO0B
ALERTB
SDA
SCL
SHARE_CLK
SYNC
TG1_PWM1
VSENSE0-
VIN
VCOMP0
VCOMP1
VFB1
VCOMP0
VCOMP1
VFB1
IAVG1
IAVG0
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
YI S.
PRODUCTION
2
6-14-14
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
YI S.
PRODUCTION
2
6-14-14
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
YI S.
PRODUCTION
2
6-14-14
__
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
Friday, January 23, 2015
13
DUAL/POLY-PHASE HIGH PERFORMANCE
HZ
YI S.
N/A
LTC3882EUJ
DEMO CIRCUIT 1936A
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
Friday, January 23, 2015
13
DUAL/POLY-PHASE HIGH PERFORMANCE
HZ
YI S.
N/A
LTC3882EUJ
DEMO CIRCUIT 1936A
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
Friday, January 23, 2015
13
DUAL/POLY-PHASE HIGH PERFORMANCE
HZ
YI S.
N/A
LTC3882EUJ
DEMO CIRCUIT 1936A
PAD8
R15 10K
E8
VOUT1
L1 0.22uH
PULSE
JP5
1
2
3
R28
0
E29
GND
Q2
R8
1.21k
R55
1.21k
C24
0.22uF
R63 30
1W
R14 10K
R41
OPT
C45 100uF
J1
VIN
R49
0
R13 10K
R5
1
C32
3.3nF
+
C43 470uF
C25
3.3nF
C29 10nF
R58
0
Q1
R42
OPT
C46 100uF
C39 22uF
E3
VDD33
PAD4
J6
GND
R33
10k
U2
LTC3882EUJ
COMP0
1
TSNS0
2
TSNS1
3
VIN
SNS
4
IAVG_G
ND
5
BG0/EN0
6
TG0/PWM0
7
SYNC
8
SCL
9
SDA
10
ALERT
11
GPIO0
12
GPIO1
13
RUN0
14
RUN1
15
ASEL0
16
ASEL1
17
VOUT0_CFG
18
VOUT1_CFG
19
FREQ_CFG
20
PHAS_CFG
21
VD
D25
22
WP
23
SHARE_CLK
24
VD
D33
25
VCC
26
TG1/PWM1
27
BG1/EN1
28
COMP1
29
FB1
30
IAVG1
31
32
ISENSE1-
33
34
VSENSE0-
35
36
ISENSE0-
37
38
IAVG0
39
FB0
40
GND
41
+
C44 470uF
PAD6
E2
GND
E5
VCC
R30
10k
R21
0
+
C49 470uF
E4
VDD25
R51
10
R34
OPT
E1
VIN
R31
17.4k
R59
0
C18 4.7uF
R20 4.99K
C26
330pF
R16 10K
+
C14 470uF
R46
OPT
+
C50 470uF
R48
0
PAD5
R98
0
R35
OPT
C28 10nF
+
C23 470uF
J3
VOUT0
R4 2k
C7 22uF
+
C20 470uF
C66
0.22uF
C17
1uF
C48 100uF
FDMF6820A
U3
SMOD
#
1
VCIN
2
VDRV
3
BOOT
4
CGND
5
GH
6
PHASE
7
NC
8
VIN
9
VIN
10
VIN
11
VIN
12
VIN
13
VIN
14
VSWH
15
PGND
16
PGND
17
PGND
18
PGND
19
PGND
20
PGN
D
21
PGN
D
22
VSWH
31
PGN
D
23
PGN
D
24
PGN
D
25
PGN
D
26
PGN
D
27
PGN
D
28
VSWH
29
VSWH
30
VSWH
32
VSWH
33
VSWH
34
VSWH
35
GL
36
CGND
37
NC
38
DISB#
39
PWM
40
VSWH
43
VIN
42
GND
41
R52 2k
R44
0
+
C19 470uF
R27
0
C16
2.2uF
R17 10K
+
C21 470uF
R12 30
1W
C47 100uF
R3
10
R37
OPT
R47
OPT
C9 100uF
R26
0
R6 10K
PAD7
PAD1
C3
1uF
FDMF6820A
U1
SMOD
#
1
VCIN
2
VDRV
3
BOOT
4
CGND
5
GH
6
PHASE
7
NC
8
VIN
9
VIN
10
VIN
11
VIN
12
VIN
13
VIN
14
VSWH
15
PGND
16
PGND
17
PGND
18
PGND
19
PGND
20
PGN
D
21
PGN
D
22
VSWH
31
PGN
D
23
PGN
D
24
PGN
D
25
PGN
D
26
PGN
D
27
PGN
D
28
VSWH
29
VSWH
30
VSWH
32
VSWH
33
VSWH
34
VSWH
35
GL
36
CGND
37
NC
38
DISB#
39
PWM
40
VSWH
43
VIN
42
GND
41
R54
1
R38
OPT
E6
VOUT0+
+
C4
330uF
C6 22uF
R56 10K
+
C5
330uF
C30
33pF
+
C15 470uF
R18 10K
J4
GND
R43
0
R29
357
C37
1uF
J2
GND
J5
VOUT1
R39
OPT
C35 OPT
C11 100uF
C31
330pF
E7
VOUT0-
C2 2.2uF
16V
R36
357
L2 0.22uH
PULSE
R60
0
R45
0
C8 100nF
C27
33pF
C12 100uF
R32
16.2k
PAD2
C34 2.2uF
16V
C10 100uF
C1 1uF
R19 4.99K
+
C41 470uF
R40
OPT
PAD3
C40 22uF
E9
GND
R1
0
C36 OPT
+
C42 470uF
C33 1uF
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