DC2143A-C - Schematic

5
4
3
2
1
REVISION HISTORY
REV
ECO
__
DESCRIPTION
2
APPROVED
DATE
Simon T
11-25-15
PROUCTION
COMP0
D
D
VOUT0
C1
OPT
+
0.035 VIA
TESTPOINTS
R2
0
R1
0805
OPT
P1
R3
OPT
COUT45
OPT
2.5V
COUT1
100uF
1210
COUT2
100uF
1210
COUT3
100uF
1210
+
COUT4
470uF
2.5V
+
COUT5
470uF
2.5V
COUT6
100uF
1210
COUT7
100uF
1210
VOSNS0+
C2
OPT
P2
CIN1
10uF
1210
+
CIN3
150uF
35V
CIN4
10uF
1210
CIN5
10uF
1210
CIN6
10uF
1210
GND
E4
GND
R4 0
F11
F12
J1
J2
J3
K1
K2
K3
L1
L2
L3
M1
M2
M3
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
J8
H9
VOSNS1
VORB1
H8
J9
COMP1b
K5
H2
H1
G2
G1
L10
M5
J5
COMP1a
TSNS1a
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
TSNS1b
A11
A12
B11
B12
C11
C12
D11
D12
E12
CIN7
10uF
1210
INTVCC
INTVCC
INTVCC
R5
F9
G9
VDD33
J7
VDD33
A5
OPT
0805
E2
E1
F2
F1
COMP0
C3
220pF
C5
D5
C4
6.8nF
E8
R14
2K
R17
OPT
D8
P4
D10
E6
VOUT0_SNS
P5
E10
R18
D9
0
SHARE_CLK
ISNS0aISNS0b-
ALERT
SCL
ISNS0a+
ISNS0b+
TSNS0b
TSNS0a
SDA
U1
GPIO0
LTM4677EY
GPIO1
WP
COMP0a
RUN0
COMP0b
RUN1
E7
SYNC
H7
SHARE_CLK
E5
ALERTB
E6
SCL
D6
SDA
E4
GPIO0B
+
J4
COUT46
+ COUT8
OPT
470uF
2.5V
2.5V
COUT9
100uF
1210
COUT10
100uF
1210
A1
A2
A3
B1
B2
B3
C1
C2
C3
D1
D2
D3
COUT11
100uF
1210
GND
R25
R9
10K
R10
10K
R11
10K
R12
10K
SYNC
SHARE_CLK
ALERTB
SCL
SDA
GPIO0B
K6
F5
SW1
RUN0
RUN0
R15
10K
F6
VORB0+
VORB0-
VDD25
R16
10
ON
5
J6
2
OFF
VOSNS0+
VOSNS0-
ASEL
G4
VOUT0
B
R8
10K
R120 0
F4
VOSNS0E9
VOUT0
1V / 105A
SYNC
C5
10nF
VOSNS0+
C6
OPT
J3
SNUB0
C
R7
10K
R6
10K
SW0
6
3
B10
R13
VIN
E5
VINL
VINL
P3
C
OPT
4
1
CIN2
10uF
1210
J2
ISNS1a+
ISNS1b+
J1
SW1
*
4.5V - 16V
ISNS1aISNS1b-
VIN
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VIN
SNUB1
H12
J11
J12
K11
K12
L11
L12
M11
M12
E2
E3
VIN
0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
FSWPHCFG
VOUT0CFG
VTRIM0CFG
VOUT1CFG
VTRIM1CFG
H4
G5
H5
G6
H6
R19
787
R20
(OPT)
RUN0
R21 (OPT)
B
R22 (OPT)
R23 (OPT)
R24 (OPT)
DNC
DNC
DNC
DNC
VDD25
C10
E11
H11
K10
G7
G8
F7
F8
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
A4
A6
A7
A8
A9
A10
B4
B5
B6
B7
B8
B9
C4
C6
C7
C8
C9
D4
D7
E3
F3
F10
G3
G10
G11
G12
H3
H10
J4
J10
K4
K7
K8
K9
L4
L5
L6
L7
L8
L9
M4
M6
M7
M8
M9
M10
SGND
SGND
SGND
SGND
E7
E8
GND0_SNS
R26
0
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
* WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R5,R34, R61.
A
A
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.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
HZ
JIAN L.
5
4
3
2
www.linear.com
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
µModule REGULATOR WITH DIGITAL POWER MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
Fax: (408)434-0507
B
SCALE = NONE
DATE:
IC NO.
LTM4677EY
REV.
1
DEMO CIRCUIT 2143A-C
Monday, November 30, 2015
SHEET 1
1
OF 6
5
4
3
2
1
COMP1
D
D
VOUT1
C7
OPT
J5
C8
OPT
+
R27
OPT
CIN8
10uF
1210
CIN9
10uF
1210
CIN10
10uF
1210
CIN11
10uF
1210
R32 0
F11
F12
COUT12
100uF
1210
COUT13
100uF
1210
COUT14 + COUT15
100uF
470uF
1210
2.5V
+
COUT16
470uF
2.5V
COUT17
100uF
1210
COUT18
100uF
1210
R28
OPT
E9
VOSNS1
VOUT1_SNS
J1
J2
J3
K1
K2
K3
L1
L2
L3
M1
M2
M3
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
H9
C9
OPT
VOSNS1
J8
J9
VORB1
H8
COMP1a
COMP1b
J5
TSNS1a
TSNS1b
K5
H2
H1
ISNS1a+
ISNS1b+
G2
G1
M5
L10
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
R31
OPT
P7
ISNS1aISNS1b-
A11
A12
B11
B12
C11
C12
D11
D12
E12
SW1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VIN
R30
0
R29
0805
OPT
P6
SNUB1
H12
J11
J12
K11
K12
L11
L12
M11
M12
0.035 VIA
TESTPOINTS
COUT44
OPT
2.5V
VOUT1
J6
R33 OPT
GND
INTVCC
INTVCC
VINL
VINL
VDD33
R34
F9
G9
OPT
VIN
E10
GND1_SNS
J7
P8
B10
R37
A5
0805
OPT
E2
E1
F2
F1
COMP0
C5
D5
C10
OPT
E8
R38
OPT
P9
P10
D8
D10
E10
D9
VOSNS0+
R35
10K
SW0
SNUB0
SYNC
SHARE_CLK
ISNS0aISNS0b-
ALERT
SCL
ISNS0a+
ISNS0b+
SDA
U2
TSNS0b
TSNS0a
GPIO0
LTM4677EY
GPIO1
WP
COMP0a
RUN0
COMP0b
RUN1
E7
SYNC
H7
SHARE_CLK
E5
ALERTB
E6
SCL
D6
SDA
E4
GPIO0B
F4
GPIO1B
SHARE_CLK
ALERTB
SCL
SDA
GPIO0B
GPIO1B
K6
F5
F6
RUN0
R39
10K
RUN1
VORB0+
VORB0-
VDD25
J6
P11
VOSNS0+
C11
OPT
VOSNS0-
ASEL
G4
VOUT0
COUT20
100uF
1210
COUT21
100uF
1210
COUT22
100uF
1210
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
FSWPHCFG
VOUT0CFG
VTRIM0CFG
VOUT1CFG
VTRIM1CFG
G7
G8
F7
F8
A4
A6
A7
A8
A9
A10
B4
B5
B6
B7
B8
B9
C4
C6
C7
C8
C9
D4
D7
E3
F3
F10
G3
G10
G11
G12
H3
H10
J4
J10
K4
K7
K8
K9
L4
L5
L6
L7
L8
L9
M4
M6
M7
M8
M9
M10
G5
H5
G6
H6
R42
1.65K
SW2
RUN1
R41
10
ON
5
2
OFF
R43 (OPT)
C12
10nF
B
R44 (OPT)
R45 (OPT)
R46 (OPT)
RUN1
DNC
DNC
DNC
DNC
470uF
2.5V
H4
1.65K
C10
E11
H11
K10
+ COUT19
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
COUT43
OPT
2.5V
SGND
SGND
SGND
SGND
+
B
A1
A2
A3
B1
B2
B3
C1
C2
C3
D1
D2
D3
R40
6
3
E9
VOSNS0-
C
R36
10K
SYNC
4
1
C
OPTIONAL JUMPER FOR SINGLE
OUTPUT CONFIGURATION
R47
0
GPIO0B
GPIO1B
R48
0
R50
0
RUN1
RUN0
COMP0
VOUT0
VOUT1
R49
0
2010
COMP1
R51
0 2010
R53
0 2010
A
A
R54
R56
0
VOSNS0+
VOSNS1
R119 (OPT)
0 2010
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.
PCB DES.
APP ENG.
JIAN L.
3
2
Fax: (408)434-0507
www.linear.com
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
µModule REGULATOR WITH DIGITAL POWER MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
TECHNOLOGY
HZ
VOSNS0-
5
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
APPROVALS
B
SCALE = NONE
DATE:
IC NO.
LTM4677EY
REV.
1
DEMO CIRCUIT 2143A-C
Wednesday, November 25, 2015
1
SHEET 2
OF 6
5
4
3
2
1
COMP0
VOUT0
D
D
C13
OPT
COUT23
100uF
1210
COUT24
100uF
1210
COUT25
100uF
1210
+
COUT26
470uF
2.5V
+
COUT41
OPT
2.5V
VOSNS0+
CIN13
10uF
1210
CIN14
10uF
1210
CIN15
10uF
1210
R60 0
F11
F12
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
H9
J1
J2
J3
K1
K2
K3
L1
L2
L3
M1
M2
M3
C14
OPT
VOSNS1
J8
H8
J9
VORB1
COMP1b
COMP1a
K5
J5
TSNS1a
TSNS1b
H2
H1
G2
G1
M5
L10
SW1
ISNS1a+
ISNS1b+
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
R59
OPT
P13
ISNS1aISNS1b-
A11
A12
B11
B12
C11
C12
D11
D12
E12
CIN12
10uF
1210
SNUB1
H12
J11
J12
K11
K12
L11
L12
M11
M12
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VIN
R58
0
R57
0805
OPT
P12
0.035 VIA
TESTPOINTS
VIN
INTVCC
INTVCC
R61
F9
G9
OPT
P15
VINL
VINL
VDD33
J7
P14
B10
C
R62
SW0
A5
C
SNUB0
SYNC
OPT 0805
SHARE_CLK
E2
E1
ISNS0aISNS0b-
COMP0
SCL
F2
F1
ISNS0a+
ISNS0b+
C5
D5
C15
OPT
TSNS0b
TSNS0a
OPT
P16
P17
GPIO0
LTM4677EY
GPIO1
COMP0a
RUN0
D8
COMP0b
RUN1
D10
SYNC
SHARE_CLK
E5
ALERTB
E6
SCL
D6
SDA
E4
GPIO0B
F4
E10
SYNC
SHARE_CLK
ALERTB
SCL
SDA
GPIO0B
R121 0
K6
F5
RUN0
R64
10K
F6
VORB0+
P18
VORB0-
D9
VOSNS0+
SDA
U3
WP
E8
R63
ALERT
E7
H7
VDD25
J6
VOSNS0+
C16
OPT
E9
VOSNS0-
470uF
2.5V
COUT27
100uF
1210
COUT29
100uF
1210
COUT30
100uF
1210
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
FSWPHCFG
VOUT0CFG
VTRIM0CFG
VOUT1CFG
VTRIM1CFG
A4
A6
A7
A8
A9
A10
B4
B5
B6
B7
B8
B9
C4
C6
C7
C8
C9
D4
D7
E3
F3
F10
G3
G10
G11
G12
H3
H10
J4
J10
K4
K7
K8
K9
L4
L5
L6
L7
L8
L9
M4
M6
M7
M8
M9
M10
G4
H4
G5
H5
G6
H6
R65
2.43K
R66
3.24K
R67 (OPT)
R68 (OPT)
B
R69 (OPT)
R70 (OPT)
DNC
DNC
DNC
DNC
+ COUT28
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
B
COUT42
OPT
2.5V
ASEL
SGND
SGND
SGND
SGND
+
A1
A2
A3
B1
B2
B3
C1
C2
C3
D1
D2
D3
C10
E11
H11
K10
VOUT0
G7
G8
F7
F8
VOSNS0-
A
A
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.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
HZ
JIAN L.
5
4
3
2
www.linear.com
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
µModule REGULATOR WITH DIGITAL POWER MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
Fax: (408)434-0507
B
SCALE = NONE
DATE:
IC NO.
LTM4677EY
REV.
1
DEMO CIRCUIT 2143A-C
Friday, August 28, 2015
SHEET 3
1
OF 6
5
4
3
2
1
COMP0
VOUT0
C17
OPT
D
R74 0
F11
F12
COUT33 + COUT34
100uF
470uF
2.5V
1210
+
D
COUT40
OPT
2.5V
C18
OPT
J1
J2
J3
K1
K2
K3
L1
L2
L3
M1
M2
M3
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
H9
VOSNS1
J8
H8
J9
VORB1
COMP1b
J5
K5
H2
H1
G2
G1
M5
L10
SW1
COMP1a
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
VINH0
TSNS1a
A11
A12
B11
B12
C11
C12
D11
D12
E12
CIN19
10uF
1210
TSNS1b
CIN18
10uF
1210
ISNS1a+
ISNS1b+
CIN17
10uF
1210
COUT32
100uF
1210
VOSNS0+
R73
OPT
P20
ISNS1aISNS1b-
CIN16
10uF
1210
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VINH1
VIN
R72
0
R71
0805
OPT
P19
SNUB1
H12
J11
J12
K11
K12
L11
L12
M11
M12
0.035 VIA
TESTPOINTS
COUT31
100uF
1210
VIN
INTVCC
INTVCC
R75
F9
G9
OPT
P22
VINL
VINL
VDD33
J7
P21
B10
R76
A5
SW0
SNUB0
SYNC
0805 OPT
C
E2
E1
F2
F1
COMP0
C5
D5
C19
OPT
E8
R77
OPT
P23
D8
D10
P24 E10
D9
VOSNS0+
SHARE_CLK
ISNS0aISNS0b-
ALERT
SCL
ISNS0a+
ISNS0b+
SDA
U4
LTM4677EY
TSNS0b
TSNS0a
GPIO0
GPIO1
WP
COMP0a
RUN0
COMP0b
RUN1
E7
SYNC
H7
SHARE_CLK
E5
ALERTB
SYNC
E6
SCL
D6
SDA
E4
GPIO0B
F4
C
SHARE_CLK
ALERTB
SCL
SDA
GPIO0B
R122 0
K6
F5
RUN0
R78
10K
F6
VORB0+
P25
VORB0-
VDD25
J6
VOSNS0+
C20
OPT
E9
VOSNS0-
VOSNS0-
ASEL
G4
VOUT0
COUT36
100uF
1210
COUT37
100uF
1210
VOUT0CFG
VTRIM0CFG
VOUT1CFG
VTRIM1CFG
A4
A6
A7
A8
A9
A10
B4
B5
B6
B7
B8
B9
C4
C6
C7
C8
C9
D4
D7
E3
F3
F10
G3
G10
G11
G12
H3
H10
J4
J10
K4
K7
K8
K9
L4
L5
L6
L7
L8
L9
M4
M6
M7
M8
M9
M10
G5
H5
G6
H6
3.24K
2.43K
R81
OPT
R82
OPT
R83
OPT
R84
OPT
B
DNC
DNC
DNC
DNC
COUT35
100uF
1210
H4
R80
C10
E11
H11
K10
470uF
2.5V
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
B
+ COUT38
FSWPHCFG
SGND
SGND
SGND
SGND
OPT
2.5V
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
G7
G8
F7
F8
+ COUT39
A1
A2
A3
B1
B2
B3
C1
C2
C3
D1
D2
D3
R79
A
A
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.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
HZ
JIAN L.
5
4
3
2
www.linear.com
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
µModule REGULATOR WITH DIGITAL POWER MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
Fax: (408)434-0507
B
SCALE = NONE
DATE:
IC NO.
LTM4677EY
REV.
1
DEMO CIRCUIT 2143A-C
Friday, August 28, 2015
SHEET 4
1
OF 6
5
4
3
2
1
ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN
E17
SGND
D
ALERTB
SDA
SHARE_CLK
SCL
E13
E12
D
SYNC
E15
E14
E16
D8
E11
1
VDD33
2
GPIO1B
R136 OPT
GPIO1B
J14
AUX3V4
SCL
GND
SDA
4 AUX3V4
3
2
1
R133
OPT
SYNC
ALERTB
SDA
SCL
SHARE_CLK
E18
GPIO0B
R135 0
GPIO0B
TO DC2086A
D5
OPT
AUXP
3V3
RUN1
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
100nF
R134
4.99K
U9
2
3
4
RUN0
VCC
A1
WP
A2
SCL
VSS
SDA
R131
0
R142
OPT
C32
A0
RUN0
3V3
1
2
3
4
5
6
7
8
9
10
11
12
TO DC1613A
1
E19
E21
AUXP
SDA
GND
SCL
LGKPWR
ALERTB
GPIO_1
OUTEN_0
OUTEN_1
GND
AUXSCL
AUXSDA
C
D4
OPT
R143 0
E25
J7
R126
OPT
R144
4.99K
7
EEWP
EESCL
5
EESDA
R140
OPT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J12 DEMO HEADER (F)
R139
OPT
VIN
R128
OPT
R137
OPT
E22
FAULTB
CTRL
ALERTB
SDA
SHARE_CLK
SCL
RESETB
AUXP
UNUSED
UNUSED
GND
GND
12V
12V
SGND
R125
10
R129
10
C
C34
10nF
C33
10nF
J13 DEMO HEADER (M)
R138
OPT
1206
24LC025-I/ST
OPT
RUN1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
8 AUXVCC
6
R127
R132
OPT
PSM STACKING CONNECTORS:
OPTIONAL CIRCUIT FOR PROGRAMMING
WITHOUT VIN
3V3
Q19
DMP3130L-7
3
B
HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416
VDD33
1
VIN
2
J1, MALE, CONN
J2, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn.
NPPN072FJFN-RC
VDD33
B
R130 10K
3V3
3V3
R124
200
3V3
2
R141
15.8k
R85
200
ALERTB
GPIO0
D2
3
3
3
GREEN
1
SI2365EDS-T1-GE3
Q2
GREEN
Q3
GPIO0B
1
GPIO1
D1
2N7002K
Q4
GPIO1B
1
D3
ALERTB
RED
2N7002K
2
2
R86
127
A
A
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.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
HZ
JIAN L.
5
4
3
2
www.linear.com
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
µModule REGULATOR WITH DIGITAL POWER MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
Fax: (408)434-0507
B
SCALE = NONE
DATE:
IC NO.
LTM4677EY
REV.
1
DEMO CIRCUIT 2143A-C
Friday, August 28, 2015
SHEET 5
1
OF 6
5
4
3
2
1
ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN
D
D
DYNAMIC LOAD CIRCUIT
EXT PULSE
E23
VOUT0
J11
SET
DIV
5
R104 0
U8 LT1803IS5
+5V
R123 1000K
4
R111
C67
20K
0.1uF
C
VOUT0
R102
2512
OPT
BLEEDER
70Hz, 3% Duty Cycle
VOUT1
R105
681K
R115
20K
5
2
3
C68
1uF
V+
VOUT
1
V+IN
-IN
4
R106 3.3
3
JP2
PULSE
1
C69
INT
150pF
R107 82.5
3
1
1
EXT
Q11
R116
10K
Q12
SUD50N04-8M8P-4GE3
C
J10
SUD50N04-8M8P-4GE3
1
C70
1uF
0805
R118
0.01
R112
100
1%
R103
2512
OPT
VOUT0
2
3
4
5
V+
3
GND
6
C66
0.22uF
IOUT
TST
2
3
4
5
3
OUT
2
2
R114 154k
MOD
2
1
1
R117
2
LTC6992-1
2
U7
R108
0.01
R110
5K
LOADS
E24
R113
1.4K
1%
GND
3
VIN
B
JP1
R109
100K
BIAS
ON
B
U6
2
5
OFF
1
6
7
8
C65
1uF
SHDN
GND
GND
VIN
NC
GND
SENSE/ADJ
OUTPUT
4
3
2
C64
4.7uF
1
+5V
LT1129CS8-5
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.
A
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
HZ
JIAN L.
5
4
3
www.linear.com
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
µModule REGULATOR WITH DIGITAL POWER MANAGEMENT
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
Fax: (408)434-0507
B
SCALE = NONE
2
DATE:
IC NO.
LTM4677EY
REV.
1
DEMO CIRCUIT 2143A-C
Wednesday, November 25, 2015
SHEET 6
1
OF 6
A
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