DC561A - Schematic

B
C
5
6
7
8
E5
UVADJ
R13
10
1S1+
1S11S2+
1S21S32
1S3+
+5V
ITH
R12
(Opt.)
R99
0
C16
0.01uF
R17
10
R19
10
C17
1000pF
R22
10
R23
10
C19
1000pF
R24
10
C20
1000pF
R25
(Opt.)
R26
1.5K
R27
(Opt.)
C22
100pF
SENSE1+
BG1
20
PGND
19
6
SENSE2+
BG2
18
7
SENSE2-
BG3
17
8
SENSE3-
SW3
16
9
SENSE3+
TG3
15
BOOST3
14
PHASMD/PG
13
ITH
12
UVADJ
R20 Vin+
357K
1S1-
1S1+
1
1
2
3
1
2
3
5
6
7
8
R8
1
C8
1uF
16V
L2
CDEP105-0R4-MC50
C9
4.7uF
10V
1206
4
C14
0.1uF
3
Q5
Si7856DP
4
D3
B320A
Q6
Opt.
D4
BAT54
1
+5V
Q7
Si7860DP
R11
0.002
C12
1uF
6.3V
+ COUT1
330uF
2.5V
Vout+
+ COUT2
330uF
2.5
+ COUT3
330uF
2.5V
+ COUT4
330uF
2.5V
+ COUT5
330uF
2.5V
1.5V at
90A/180A
3
1
C13
1uF
4
C15
10uF
16V
1210
+ COUT6
330uF
2.5V
L3
CDEP105-0R4-MC50
R15
(Opt.)
R18
0
R21
121K
J3
Vout+
J4
Vout+
2
3
4
5
+5V
4
Vos+
R7
10
Vout+
1S2-
EAIN
21
Q4
Si7860DP
4
1S2+
3
11
E2
2
22
RUN/SS
C2
1uF
6.3V
C7
10uF
16V
1210
1
SW2
10
5
6
7
8
5
6
7
8
DIFFOUT
4
Vin-
1
2
3
TG2
2
SENSE1-
10V-14V
1
2
3
2
1
DIFF-
23
5
CIN7
10uF
16V
1210
J2
+ COUT7
330uF
2.5V
+ COUT8
330uF
2.5V
+ COUT9
330uF
2.5V
4
Q8
Si7856DP
4
D5
B320A
Q9
Opt.
R16
0.002
+ COUT10
330uF
2.5V
VoutJ5
R14
10
C18
1uF
6.3V
1S3-
RUN/SS
RUN/SS
1
C6
0.22uF
1S3+
Vin+
24
CIN6
10uF
16V
1210
2
E4
BOOST2
CIN5
10uF
16V
1210
Vos+
1
EAIN
EAIN
C11
220pF
25
CIN4
10uF
16V
1210
R3
0.002
VosE6
Vos-
Vin+
2
3
C10
47pF
DIFF+
SW1
D2
B320A
Q3
Opt.
5
6
7
8
VDIFFOUT
R10
10K
32
26
CIN3
10uF
16V
1210
1
2
3
R9
6.65K
FCB
TG1
CIN2
10uF
16V
1210
1
2
3
E3
31
BOOST1
4
C4
0.22uF
5
6
7
8
VDIFFOUT
PLLFLTR
27
Q2
Si7856DP
4
1
2
3
Vos-
PLLIN
30
CLKOUT
5
6
7
8
R6
0
29
+ CIN1
270uF
16V
OS-CON
1
2
3
2
C3
0.01uF
C5
1000pF
28
Vin+
C1
10uF
16V
1210
L1
CDEP105-0R4-MC50
5
6
7
8
R5
10K
JP1
FREQ
Q1
Si7860DP
4
U1
LTC3731CUH
3
R4
3.32K
Vos+
J1
1
2
3
1
SGND
R2
8.06K
33
R1
10
D1
BAT54A
CLK1
Ext Sync
+5V
Vin+
3
E1
Int Prog
4
SYNC-IN
E
C114
1uF
6.3V
+5V
SYNC-IN
D
5
6
7
8
A
2
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
C21
2200pF
ITH
12-Phase
Version
E7
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
J7
HEADER
1
1
LINEAR TECHNOLOGY CORPORATION
1630 McCarthy Blvd.
Milpitas, CA. 95035
Phone : (408) 954-8400 Fax : (408) 434-0507
Title
6-Phase 90A / 12-Phase 180A High Efficiency Power Supply
Size
Document Number
Rev
DC561A-A
Date:
A
B
C
D
Tuesday, April 01, 2003
LTC3731CUH
Sheet
E
1
of
5
A
B
C
D
E
4
4
C115
1uF
6.3V
Vin+
3
5
6
7
8
+5V
4
C23
10uF
16V
1210
1
2
3
D6
BAT54A
Q10
Si7860DP
22
+5V
21
4
SENSE1+
BG1
20
5
SENSE1-
PGND
19
6
SENSE2+
BG2
18
7
SENSE2-
BG3
17
8
SENSE3-
SW3
16
9
SENSE3+
TG3
15
BOOST3
14
PHASMD/PG
13
10
RUN/SS
11
ITH
12
UVADJ
C41
150pF
PG
5
6
7
8
Vout+
1
2
3
Vout+
L5
CDEP105-0R4-MC50
4
Q14
Si7856DP
4
Q15
Opt.
D8
B320A
R32
0.002
2S2-
C33
4.7uF
10V
1206
1
R31
1
5
6
7
8
C32
1uF
16V
+ COUT11 + COUT12 + COUT13 + COUT14 + COUT15
330uF
330uF
100uF
100uF
100uF
2.5V
2.5V
6.3V
6.3V
6.3V
C34
1uF
6.3V
C37
0.1uF
3
D9
+5V
BAT54
1
Q16
Si7860DP
4
C38
10uF
16V
1210
+ COUT16 + COUT17 + COUT18 + COUT19 + COUT20
100uF
100uF
100uF
100uF
100uF
6.3V
6.3V
6.3V
6.3V
6.3V
L6
CDEP105-0R4-MC50
R40
(Opt.)
R41
(Opt.)
2
4
Q17
Si7856DP
4
Q18
Opt.
D10
B320A
R39
0.002
C42
1uF
6.3V
2
UVADJ
2S1-
2S1+
5
6
7
8
2
SW2
EAIN
1
2
3
DIFFOUT
3
1
2
3
2
4
1
2
3
ITH
R100
0
23
2S3-
RUN/SS
TG2
C30
10uF
16V
1210
2S2+
C39
1000pF
C40
100pF
DIFF-
Q13
Si7860DP
2S3+
R38
10
1
C29
0.22uF
2
2S3+
24
1
2
25
BOOST2
C24
1uF
6.3V
1
2
3
C36
1000pF
2S3-
R36
10
R37
10
2S2-
SW1
DIFF+
D7
B320A
3
5
6
7
8
C35
1000pF
2S2+
FCB
32
Q12
Opt.
1
2
3
R34
10
R35
10
2S1-
31
5
6
7
8
R33
10
2S1+
C31
10pF
26
PLLFLTR
1
2
3
EAIN
TG1
30
4
C27
0.22uF
5
6
7
8
VDIFFOUT
27
PLLIN
Q11
Si7856DP
4
R28
0.002
1
2
3
Vos-
BOOST1
29
5
6
7
8
R30
0
28
SGND
Vos+
C26
0.01uF
C28
1000pF
CLKOUT
33
R29
10K
3
5
6
7
8
U2
LTC3731CUH
1
L4
CDEP105-0R4-MC50
2
CLK2
1
CLK1
R42
0
1
1
LINEAR TECHNOLOGY CORPORATION
1630 McCarthy Blvd.
Milpitas, CA. 95035
Phone : (408) 954-8400 Fax : (408) 434-0507
Title
6-Phase 90A / 12-Phase 180A High Efficiency Power Supply
Size
Document Number
Rev
DC561A-A
Date:
A
B
C
D
Tuesday, April 01, 2003
LTC3731CUH
Sheet
E
2
of
5
A
B
C
D
E
4
4
C116
1uF
6.3V
Vin+
3
5
6
7
8
+5V
D11
BAT54A
CLK3
4
C43
10uF
16V
1210
C59
1000pF
BG1
20
5
SENSE1-
PGND
19
6
SENSE2+
BG2
18
7
SENSE2-
BG3
17
8
SENSE3-
SW3
16
9
SENSE3+
TG3
15
BOOST3
14
PHASMD/PG
13
10
RUN/SS
11
ITH
UVADJ
C62
150pF
3S1-
3S1+
5
6
7
8
1
2
3
1
2
3
L8
CDEP105-0R4-MC50
C53
4.7uF
10V
1206
4
Q23
Si7856DP
4
Q24
Opt.
D13
B320A
R47
0.002
C54
1uF
6.3V
3S2-
SENSE1+
R46
1
C52
1uF
16V
3S2+
4
12
C60
100pF
2
21
1
+5V
4
C50
10uF
16V
1210
5
6
7
8
EAIN
5
6
7
8
22
Q22
Si7860DP
1
2
3
23
SW2
C57
0.1uF
3
+5V
D14
BAT54
1
Q25
Si7860DP
4
C58
10uF
16V
1210
2
L9
CDEP105-0R4-MC50
R54
(Opt.)
R56
0
4
Q26
Si7856DP
4
Q27
Opt.
D15
B320A
R55
0.002
Vout+
C61
1uF
6.3V
2
1
2
3
ITH
R101
0
TG2
DIFFOUT
5
6
7
8
RUN/SS
DIFF-
C49
0.22uF
3S3-
R53
10
24
33
2
3
25
3S3+
3S3+
3S2-
2
SW1
BOOST2
2
C56
1000pF
3S3-
R51
10
R52
10
3S2+
1
C44
1uF
6.3V
3
1
C55
1000pF
DIFF+
D12
B320A
1
2
3
R49
10
R50
10
3S1-
FCB
32
26
5
6
7
8
R48
10
3S1+
31
TG1
4
C47
0.22uF
Q21
Opt.
1
2
3
C51
10pF
PLLFLTR
27
5
6
7
8
VDIFFOUT
EAIN
30
BOOST1
Q20
Si7856DP
4
1
2
3
Vos-
PLLIN
5
6
7
8
R45
0
29
28
Vout+
R43
0.002
1
2
3
Vos+
C46
0.01uF
C48
1000pF
CLKOUT
SGND
R44
10K
3
5
6
7
8
U3
LTC3731CUH
1
L7
CDEP105-0R4-MC50
2
1
1
2
3
CLK2
Q19
Si7860DP
UVADJ
1
1
LINEAR TECHNOLOGY CORPORATION
1630 McCarthy Blvd.
Milpitas, CA. 95035
Phone : (408) 954-8400 Fax : (408) 434-0507
Title
6-Phase 90A / 12-Phase 180A High Efficiency Power Supply
Size
Document Number
Rev
DC561A-A
Date:
A
B
C
D
Tuesday, April 01, 2003
LTC3731CUH
Sheet
E
3
of
5
A
B
C
D
E
4
4
C117
1uF
6.3V
Vin+
5
6
7
8
+5V
3
CLKOUT
D16
BAT54A
4
C63
10uF
16V
1210
1
2
3
E8
Q28
Si7860DP
C79
1000pF
20
5
SENSE1-
PGND
19
6
SENSE2+
BG2
18
7
SENSE2-
BG3
17
8
SENSE3-
SW3
16
9
SENSE3+
TG3
15
BOOST3
14
PHASMD/PG
13
RUN/SS
11
ITH
12
UVADJ
4
4S1-
4S1+
5
6
7
8
1
2
3
Q32
Si7856DP
4
Q33
Opt.
D18
B320A
R61
0.002
4S2-
BG1
L11
CDEP105-0R4-MC50
C73
4.7uF
10V
1206
4S2+
SENSE1+
10
1
2
3
2
4
R60
1
C72
1uF
16V
1
21
4
C70
10uF
16V
1210
5
6
7
8
+5V
5
6
7
8
22
Q31
Si7860DP
1
2
3
23
SW2
C77
0.1uF
+5V
D19
BAT54
Q34
Si7860DP
4
3
1
C74
1uF
6.3V
C78
10uF
16V
1210
2
L12
CDEP105-0R4-MC50
R68
100K
C82
150pF
4
Q35
Si7856DP
4
Q36
Opt.
D20
B320A
R69
0.002
Vout+
C81
1uF
6.3V
2
1
2
3
ITH
R102
0
C80
100pF
TG2
DIFFOUT
5
6
7
8
RUN/SS
DIFF-
C69
0.22uF
4S3-
R67
10
EAIN
24
33
2
3
25
4S3+
4S3+
4S2-
2
SW1
BOOST2
3
2
C76
1000pF
4S3-
R65
10
R66
10
4S2+
1
D17
B320A
1
C75
1000pF
DIFF+
26
Q30
Opt.
1
2
3
R63
10
R64
10
4S1-
FCB
32
TG1
4
C67
0.22uF
5
6
7
8
R62
10
4S1+
31
27
C64
1uF
6.3V
1
2
3
C71
10pF
PLLFLTR
BOOST1
5
6
7
8
VDIFFOUT
EAIN
30
CLKOUT
1
2
3
Vos-
PLLIN
5
6
7
8
Vos+
R59
0
29
Q29
Si7856DP
4
Vout+
R57
0.002
1
2
3
3
C66
0.01uF
C68
1000pF
28
SGND
R58
10K
5
6
7
8
U4
LTC3731CUH
1
L10
CDEP105-0R4-MC50
2
1
CLK3
UVADJ
PG
PG
E9
SGND
E15
1
1
LINEAR TECHNOLOGY CORPORATION
1630 McCarthy Blvd.
Milpitas, CA. 95035
Phone : (408) 954-8400 Fax : (408) 434-0507
Title
6-Phase 90A / 12-Phase 180A High Efficiency Power Supply
Size
Document Number
Rev
DC561A-A
Date:
A
B
C
D
Tuesday, April 01, 2003
LTC3731CUH
Sheet
E
4
of
5
A
B
C
D
E
Vout+
+12V
Dynamic Load Circuit
D21
MMBZ5231BLT1
1
3
C83
100pF
TRIG1
3
Vout+
U5B
LT1361CS8
2
C112
(Opt.)
1
+
-
Q39
FMMT718
1
VR1
LT1004CS8
U6
LT1210CR
4
C93
0.01uF
C91
4.7uF 16V
1206
R78
0.010
2010
R80
2K
-12V
C94
0.1uF
R79
0.010
2010
PGND
C128
C129
C134
C139
PGND
R89
10.7K
1%
L14-2
10uH
6328-T064
C102
4.7uF
16V
3
1
On
2
VIN
4
SHDN
6
R103
6.65K
1%
Ext.
Int.
C111
10uF
10V
1210
Vos+
+5V
3
R95
15
JP5
VID1
1
R88
(Opt.)
3
0
C105
(Opt.)
0
R90
1k
1
JP7
VID3
1
3
0
0
R104
20.0K
1%
VID0
VID1
VID2
VID3
VCC
FB
GND
NC
VID4
SENSE
10
9
8
7
6
R86
(Opt.)
EAIN
R91
(Opt.)
VDIFFOUT
2
C104
47pF
C103
0.1uF
1
JP8
VID4
1
3
R96
8.06K
1%
1
2
3
4
5
JP6
VID2
1
3
R93
0
C107
1500pF
U10
LTC1706EMS-61
1
1
C108 E14
1uF
16V
0805
Optional External Compensation and
Voltage Programming Circuit
2
3
D27
B0530W
+5V
JP9
+5V SELECT
1
FB
GND
C110
1uF
16V
0805
2
3
1
SW
C109
L15
.022uF
15uH
16V
0603 A914BYW-150M
1
Off
BOOST
1
2
U11
LT1616ES6
5
VDIFFOUT
R87
1.1K
ITH
C86
1000pF
C106
39pF
-12V
R94
12.1K
1%
1
1
R92
(Opt.)
D26
CMDSH-3
1
2
1
JP10
Int. 5V
4
+
-
2
D25
B0540W
Vin+
2
3
2
2
U9
LT1806CS6
C101
0.1uF
0
C98
0.1uF
2
R84
11.8K
1%
PGND
JP3
VID0
1
3
2
R85
13.3K
C99
4.7uF
16V
+5V
2
1
L14-1
10uH
6328-T064
VR2
LT1634CMS8-1.25
6
4
2
1
2
U8
LT1930ES5
1
LINEAR TECHNOLOGY CORPORATION
1630 McCarthy Blvd.
Milpitas, CA. 95035
Phone : (408) 954-8400 Fax : (408) 434-0507
Title
6-Phase 90A / 12-Phase 180A High Efficiency Power Supply
Size
Document Number
Rev
DC561A-A
Date:
A
3
+5V
R82
2K
C96
10pF
3
GND
DLC
BIAS
C100
1uF
X5R
6.3V
+5V
6
FB
C119 C131
100uF C120 C132
X5R C121 C133
6.3V C122 C135
C124 C136
C125 C137
C130 C138
C118
C123
C126
C127
(Opt.)
1
2
SHDN
2
4
4
D24
B0540W
R83
115K
SW
JP4
2
On
Off
LOAD STEP
+12V
C95
1uF
16V
X5R
1
5
VIN
3
C97
4.7uF
25V
R98
0.010
2010
Vout+
E13
L13
10uH
CMD4D08-100MC
R97
0.010
2010
-12V
3
+5V
J6
E12
-12V
Vin+
C88
1uF
1
R75
20K
2
IMAX
ADJ.
4
7
C87
1uF
Q38
Q40
Q41
Q42
Si7806DN
3
6
R77
1K
5
6
7
8
C90
0.01uF
1
2
3
R74
(Opt.)
1
JP2
DLC
4
8
5
-
R72
3.9K
0805
2
3
+
2
2
3
-
6
8
1
SLOPE UP
C92
0.1uF
C140
C141
C142
2
3
4
5
1
R81
50K
7
Q37
FMMT619
3
3
6
4
3
+
1
U5A
LT1361CS8
1
1
5
1
2
D23
CMDSH-3
1
2
TLC555CD
22uF
X5R
6.3V
Vout+
C85
0.1uF
2
R73
50K
C89
0.1uF
8
R70
390K
Off On
3
OUT
2
8
TRIG
RSET
DSCH
THRES
CON
D22
CMDSH-3
2
1
3
GND
R76
1.5K
VDD
U7
2
4
7
6
5
E10
4
E11
SLOPE DOWN
R71
39K
C113
0.1uF
+12V
8
+5V
C84
4.7uF 16V
1206
4
4
C143
C144
(Opt.)
+12V
+12V
B
C
D
Tuesday, April 01, 2003
LTC3731CUH
Sheet
E
5
of
5
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