DC1675 - Schematic

5
4
3
2
1
REVISION HISTORY
17
PGOOD
ITEMP1
VIN+
+
+
5
BOOST3
ITEMP
TG1
SW1
30
BG1
26
2
1
C25
D2
0.1uF CMDSH-3
TG2
28
SW2
29
BG2
GND
CIN9
180uF
16V
19
C21
C22
1000pF
1000pF
TG3
SW3
2
5
Q6
OPT
VO-SNS+
BG3
D3
C26
0.1uF CMDSH-3
4
S2P
VOUT
R54
OPT
R56
OPT
VO-SNSE4
VIN
R25
100
VIN
SENS2N
R24
100
SENS2P
R23
100
SENS1N
R22
100
VO-SNSCIN5
10uF
16V
X5R
TG3
S1N
4
CIN6
10uF
16V
X5R
B
S3P
4
Q9
RJK0305DPB
1
2
3
C44
0.01uF
5
S2P
(5.5V MAX)
E13
Q10
OPT
S3N
L3
0.33uH
SW3
VOUT
BG3
C40
0.1uF
C86
0.1uF
OPTIONAL TEMPERATURE
COMPENSATION
NETWORK FOR DCR
SENSING
4
Q11
RJK0330DPB
R57
OPT
4
R59
OPT
RSNS3
0.001
2010
X5R
COUT8
330uF
2.5V
SANYO
+
COUT9
330uF
2.5V
SANYO
SENS3N
Q12
RJK0330DPB
NOTE:
+
R58
OPT
OPTIONAL DCR SENSING
COUT7
100uF
6.3V
1
2
3
0
5
5
R21
100
1
2
3
SENS1P
PLLIN
EXTVCC
R8
10
OPT DCR SENSE2
1000pF
SENS3P
1.5V / 120A
J4
SENS2N
SENS2P
S3N
R26
100
TK/SS
EXTVCC
EXTVCC
X5R
+
J3
COUT6
330uF
2.5V
SANYO
GND
OPT
Q8
RJK0330DPB
S1P
E10
COUT5
330uF
+
2.5V
SANYO
COUT4
100uF
6.3V
R55
22
C23
RSNS2
0.001
2010
S3P
0
R134
E3
R6
10
S2N
L2
0.33uH
4
Q7
RJK0330DPB
S2N
PLLIN
C
VO-SNS+
4
1
21
SENS3N
R36
OPT
CIN4
10uF
16V
X5R
ONLY APPLY LOAD FROM E3 TO E4 FOR VOUT
4
20
B
E12
SENS1P
VIN
CIN3
10uF
16V
X5R
Q5
RJK0305DPB
SENS1N
OPT DCR SENSE1
VIN
27
R29
0
E2
TK / SS
COUT3
330uF
2.5V
SANYO
VOUT
J2
R35
+
1
2
3
36
3
MODE
RUN
10
ILIM
FREQ
BG2
COUT2
330uF
2.5V
SANYO
5
32
OPT
Q4
RJK0330DPB
PGOOD
5
CIN7
180uF
16V
TG2
SW2
EXTVCC
J1
CIN8
180uF
16V
C24
D1
0.1uF CMDSH-3
31
R28
0
AVP
VIN
+
VIN-
37
39
E1
GND
23
1
1
2
3
EXTVCC
2
Q3
RJK0330DPB
5
R4
66.5
33
DIFFOUT
+
1
2
3
R92
66.5
BOOST2
COUT1
100uF
6.3V
X5R
R52
24
DIFFN
DIFFP
RSNS1
0.001
2010
5
4
AVP
VIN
38
BG1
LTC3829EUHF
D
VOUT
R53
OPT
R51
OPT
1
2
3
DIFFOUT1
SW1
SENSE3-
AVP
ISET
12-01-10
S1N
L1
0.33uH
4
12
2
R3
0
C
1
U1
SENSE3+
DIFFP
TG1
ITH
DATE
JIAN L.
S1P
Q2
OPT
4
16V
25
R27
0
SENSE2-
VO-SNSVO-SNS+
INTVCC1 C11
4.7uF
VFB
11
ISET1
15
BOOST1
8
R7
4.87K
C5
2.2nF
TK/SS
SENSE2+
14
R9
27.4K
VIN
INTVCC
7
13
C4
22pF
7V - 14V
9
35
18
TK/SS
APPROVED
CIN2
10uF
16V
X5R
4
C10
0.1uF
R5
35.7K
CLKOUT
SENSE1-
ITH1
R2
20.0K
34
6
CLK1
C72
OPT
16
PLLIN
C1
100pF
SENSE1+
R1
30.1K
VO-SNS+
4
Q1
RJK0305DPB
VIN
R10
2.2
R13
0
PLLIN
R91
OPT
VINF1
R124
OPT
DIFFOUT1
PRODUCTION
IFAST1
1
2
3
E9
DESCRIPTION
2
JP5
R123
0
R12
OPT
VFB1
R90
0
3
INTVCC1
JP4
RUN
2
ON
RUN
REV
5
MODE
5
4
OFF
1
2
3
JP1
D
3
FORCE CONTINUOUS
RUN
R42
OPT
C41
OPT
1
MODE
5
3
IFAST1
2
BURST / SYNC
ECO
__
CIN1
10uF
16V
X5R
1
2
3
2
OFF
STAGE SHEDDING
VIN
INTVCC1
5
R41
OPT
1
1%
1
2
3
100K
1
IFAST
RUN
ON
VIN
R11
INTVCC1
MODE
1
2
3
VIN
SENS3P
OPT DCR SENSE3
WHEN DCR SENSING IS IMPLEMENTED
ITEMP1
SHORT RSNS1, RSNS2 AND RSNS3
INTVCC1
A
R61
100K
PGOOD
PGOOD
DO NOT STUFF R21-R26
R45
0
CUSTOMER NOTICE
C51
OPT
RNTC1
OPT
INTVCC1
R47
28K
E14
R60
OPT
VINF1
4.5V < VIN < 5.5V
4
TECHNOLOGY
AK
JIAN L.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
HIGH EFFICIENCY 6-PHASE 120A STEP-DOWN SUPPLY
3
2
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
TITLE: SCHEMATIC
SIZE
ONLY
5
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.
DATE:
IC NO.
REV.
LTC3829EUHF
2
DEMO CIRCUIT 1675A
Tuesday, January 11, 2011
SHEET 1
1
OF 3
A
5
4
3
2
1
R93
100K
1%
VIN
INTVCC2
CLKOUT
CIN11
10uF
16V
X5R
1
VINF2
R126
OPT
R96
0
23
17
PGOOD
ITEMP2
37
R131
0
VFB1
R132
0
B
ITH1
R133
0
ISET1
BG2
30
BG4
26
2
1
5
SENS4P
VIN
VIN
CIN13
10uF
16V
X5R
CIN14
10uF
16V
X5R
Q21
RJK0305DPB
C79
D9
0.1uF CMDSH-3
C
27
4
28
SW5
29
BG5
Q22
OPT
4
S5P
S5N
L5
0.33uH
PGOOD
BOOST3
ITEMP
GND
19
2
R108
0
IFAST2
VFB2
C81
C82
1000pF
1000pF
TG3
SW3
BG3
1
D10
C80
0.1uF CMDSH-3
4
20
R109
OPT
4
Q23
RJK0330DPB
21
R110
OPT
SENS6P
R113
100
+
COUT26
330uF
2.5V
SANYO
+
COUT27
330uF
2.5V
SANYO
SENS5P
S6N
SENS6N
COUT25
100uF
6.3V
SENS5N
Q24
RJK0330DPB
R112
100
VOUT
X5R
OPT
C83
RSNS5
0.001
2010
R111
22
OPT DCR SENSE5
VIN
1000pF
VIN
S6P
ITH2
CIN15
10uF
16V
X5R
S5N
SENS5N
R114
100
SENS5P
R115
100
SENS4N
R116
100
S5P
ISET2
TG6 4
Q25
RJK0305DPB
S4N
CIN16
10uF
16V
X5R
B
S6P
4
Q26
OPT
SW6
S6N
L6
0.33uH
5
R117
100
RSNS6
0.001
2010
VOUT
COUT28
100uF
6.3V
+
X5R
COUT29
330uF
2.5V
SANYO
+
COUT30
330uF
2.5V
SANYO
1
2
3
R120
SENS6N
SENS6P
OPT DCR SENSE6
WHEN DCR SENSING IS IMPLEMENTED
R121
0
C84
OPT
DO NOT STUFF R112-R117
CUSTOMER NOTICE
INTVCC2
R122
28K
R135
OPT
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.
RNTC2
OPT
4
R118
OPT
Q28
RJK0330DPB
SHORT RSNS4, RSNS5 AND RSNS6
A
R119
OPT
OPT
OPTIONAL DCR SENSING
NOTE:
ITEMP2
4
Q27
RJK0330DPB
1
2
3
BG6
TEMPERATURE
COMPENSATION
NETWORK FOR DCR
SENSING
5
S4P
SENS4P
VINF2
4.5V < VIN < 5.5V
HIGH EFFICIENCY 6-PHASE 120A STEP-DOWN SUPPLY
3
2
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
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
TECHNOLOGY
AK
JIAN L.
ONLY
5
COUT24
330uF
2.5V
SANYO
1
2
3
1
2
3
SW4
5
IFAST
MODE
RUN
ILIM
EXTVCC
+
5
IFAST1
TG4
1
2
3
R130
OPT
TG2
SW2
5
39
32
R107
0
AVP
COUT23
330uF
2.5V
SANYO
OPT DCR SENSE4
31
DIFFOUT
+
SENS4N
5
4
EXTVCC
BOOST2
COUT22
100uF
6.3V
X5R
1
2
3
38
C77
D8
0.1uF CMDSH-3
DIFFN
DIFFP
OPT
1
2
3
DIFFOUT2
BG1
R101
OPT
Q20
RJK0330DPB
5
OPT
LTC3829EUHF
ISET
Q19
RJK0330DPB
1
1
2
3
R129
2
5
AVP
33
1
2
3
2
TG1
SW1
SENSE3-
R128
OPT
1
24
12
DIFFP
VO-SNS+
15
U2
R100
OPT
4
RSNS4
0.001
2010
VOUT
R103
R104
0
ITH
4
25
VFB
SENSE3+
VO-SNS-
VO-SNSC
ISET2
BOOST1
SENSE2-
C78
22pF
C85
OPT
TK/SS
11
14
R106
27.4K
FREQ
PLLIN
13
INTVCC
8
R105
OPT
TK/SS
ITH2
VIN
CLKOUT
SENSE2+
R127
OPT
9
7
C76
OPT
34
SENSE1-
CLKOUT
6
VFB2
SENSE1+
C75
OPT
S4N
L4
0.33uH
5
36
3
10
35
16
C74
4.7uF
INTVCC2
16V
R102
OPT
S4P
5
R98
30.9K
VO-SNS+
18
VO-SNS+
4
Q18
OPT
C73
0.1uF
CLK1
OPT
4
Q17
RJK0305DPB
1
2
3
R99
D
VIN
R95
2.2
5
DIFFOUT2
CIN12
10uF
16V
X5R
3
JP6
R94
OPT
D
R97
OPT
2
ON
R125
0
5
INTVCC2
OFF
1
2
3
RUN
1
2
3
E11
VIN
IFAST2
IFAST2
MODE
DATE:
IC NO.
REV.
LTC3829EUHF
DEMO CIRCUIT 1675A
Wednesday, February 23, 2011
SHEET 2
1
2
OF 3
A
5
4
3
D4
MMBZ5231BLT1G
1
3
2
1
DYNAMIC LOAD CIRCUIT
+12V
TRIG
E17
3
3
DLC
ON
2
OFF
3
3 +
2
LT1361CS8
1
U5A
1
Q13
FMMT619/SOT
3
R73
OPT
LT1361CS8
VOUT
JP2
2
1
C60
0.47uF
6
7
R76
1K
8
VR1
LT1004CS8-1.2
3
2
3
Q16
FMMT718/SOT
C
4
2
5
SUD50N03-10
Q14
2
C57
0.01uF
2
COUT10
1uF
485
R74
POT 50K
SLOPE UP
U3
TLC555ID
C56
0.1uF
R75
7.5K
4
R77
POT 50K
C59
OPT
IMAX
ADJ
VOUT
J5
C3
1uF
1
1
7
1
C58
0.01uF
C55
0.1uF
8
5 +
U5B
6
-
2
+12V
C53
0.1uF
D
VOUT
C54
4.7uF
2
8
VDD
TRIG
RSET
DSCH
THRES OUT
CON
+12V
R69
390K
SLOPE DOWN
R71
POT 50K
D5
BAT54S
GND
R72
1.5K
2
4
7
6
5
1
R70
110K
E5
+12V
+5V
C69
0.1uF
+12V
C52
100pF
D
+
-
6
3
C61
4.7uF
7
U7
LT1210CR
1
1
3
3
J6
R78
2K
1
COUT11
1uF
Q15
SUD50N03-10
R79
0.010
5%
R80
0.010
5%
R81
0.010
5%
C62
0.1uF
R82
0.010
5%
-12V
E6
VIN
L8
10uH
CMD4D08-100MC
+12V
PGND
E7
1
D6
B0540W-7
DLC BIAS
1
ON
2
E8
OFF
VIN
B
C65
4.7uF
1
VIN
4
R83
115K
SW
SHDN
FB
3
3
R84
13.3K
GND
C67 JP3
1uF
PGND
VOUT
COUT16
COUT17
COUT18
COUT19
COUT20
COUT21
C64
10pF
C66
4.7uF
L7A
10uH
S2275315
-12V
OPT
6.3V
X5R
COUT12
COUT13
COUT14
COUT15
COUT31
COUT32
COUT33
COUT34
+
OPT
2.5V
SANYO
B
4
+5V
U4
LT1930ES5
5
1
+5V
C
-12V
C63
1uF
2
LOAD
STEP
2
L7B
10uH
S2275315
3
2
PGND
1
D7
C68
4.7uF
LOAD STEP: 1. TURN ON DLC BIAS AN DLC
2. ADJUST R77 FOR LOAD AMPLITUDE
3. ADJUST R71, R74 FOR RISE/FALL TIME
2
B0540W-7
-12V
OPTIONAL 5V BIAS
+5V
U6
LT1761ES5-SD
VIN
A
1
C70
10uF
16V
2
3
IN
OUT
5
GND
SHDN
R87
R88
0
OPT
ADJ
EXTVCC
4
CUSTOMER NOTICE
R85
R86
30.1K
C71
10uF
16V
OPT
4
TECHNOLOGY
AK
JIAN L.
R89
10K
HIGH EFFICIENCY 6-PHASE 120A STEP-DOWN SUPPLY
3
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
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
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.
DATE:
IC NO.
LTC3829EUHF
REV.
2
DEMO CIRCUIT 1675A
Wednesday, February 23, 2011
SHEET 3
1
OF 3
A
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