DC2269A - Schematic

5
VIN1
4
3
2
1
VIN2
R35 OPT
VOUT1
VOUT0
1206
L1 1uH
D
CIN1
10uF
25V
1210
C2
C1 2200pF
COMP1A
CIN2
10uF
25V
1210
CIN3
10uF
25V
1210
CIN4
10uF
25V
1210
CIN5
10uF
25V
1210
CIN6
10uF
25V
1210
C12
10uF
25V
C13
10uF
25V
R2
OPT
0805
P1
OPT
R7
4.99k
1%
R3
OPT
C9
47uF
6.3V
0805
CO2
100uF
6.3V
1210
+ CO1
330uF
6.3V
7343
CO3
100uF
6.3V
1210
CO7
100uF
6.3V
1210
F11
F12
SVIN
P3
R19
C
A5
OPT
0805
E1
E2
C5 2200pF
R20
B10
F1
F2
4.22k 1%
C6 OPT
C5
D5
COMP0A
E8
D8
VOUT0
C7 OPT
P4
P6
R37 10
VOS0+R
SCL
SDA
ISNS0B+
ISNS0A+
GPIO0
TSNS0B
TSNS0A
D10
E10
D9
GPIO1
WP
COMP0A
COMP0B
RUN1
VORB0+
VDD25
VORB0VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOUT0
VOSNS0+
B
VOSNS0-
E9
R24 OPT
G4
R25 OPT
H4
R27 OPT
G5
R28 OPT
H5
R29 6.34k 1%
G6
R33 0
VOSNS0ASEL
FSWPHCFG
VTRIM0CFG
DNC
DNC
DNC
DNC
VOUT1CFG
VTRIM1CFG
VOS0+R
VOS0-R
A
VOS1+R
VOUT0
VOUT1
VIN1
J1
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
VIN
VIN
GND
GND
GND
GND
GND
N/A
GND
VOS1+
VOS1VOS2+
VOUT1
VOUT1
VOUT1
VOUT1
VOUT2
VOUT2
VOUT2
VOUT2
VIN
VIN
GND
GND
GND
GND
GND
N/A
GND
GND
RUN1
RUN2
VOUT1
VOUT1
VOUT1
VOUT1
VOUT2
VOUT2
VOUT2
VOUT2
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
CUSTOMER NOTICE
[1]
RUN0
RUN1
VERSION
-A
-B
-C
-D
VOUT0
VOUT1
MODULE
LTM4676
LTM4676A
LTM4675
LTM4677
5
E7
SYBC
H7
SHARE_CLK
E5
ALERTB
4
E6
SCL
D6
SDA
E4
GPIO0B
F4
GPIO1B
COMP1A
R11
10K
R12
10K
R13
10K
R14
10K
R15
10K
R16
10K
R17
10K
R18
10K
R21
K6
F5
RUN0
F6
RUN1
J6
10K
P5
VOUT0
A1
A2
A3
B1
B2
B3
C1
C2
C3
D1
D2
D3
C10
47uF
6.3V
0805
CO4
100uF
6.3V
1210
CO5
100uF
6.3V
1210
+ CO6
330uF
6.3V
B
R39 100
C10
E11
H11
K10
VOSNS0-
C11 OPT
D1
B0520WS-7-F
J2
AUX3V4
SCL
GND
SDA
4
3
2
1
VOUT0
SCL
VOUT1
R31
OPT
0805
SDA
APPROVALS
TECHNOLOGY
R32
OPT
0805
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
A
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
SIZE
C:\DESIGN\22\2269A-2\2269A-2.DSN
3
R5
OPT
C
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
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.
RUN1
OPT
VDD33
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
VIN1
VDD33
VOUT0CFG
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
H6
J7
SGND
SGND
SGND
SGND
VOSNS0-
R4
RUN0
OPT
G7
G8
F7
F8
VOS0-R
H9
ALERT
C8
OPT
R38 10
VOSNS1
J1
J2
J3
K1
K2
K3
L1
L2
L3
M1
M2
M3
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
J9
VCRB1
H8
J8
COMP1B
COMP1A
K5
J5
TSND1B
TSNS1A
ISNS1A+
ISNS1B+
H2
H1
G2
G1
ISNS1AISNS1B-
M5
SNUB1
L10
SW1
SYNC
SHARE_CLK
GPIO1B
OPT
R10
10K
SW0
D
R9
G9
F9
SVIN
SVIN
U1 [1]
R8
GPIO0B
R36
10
COMP0A
VDD33
ISNS0BISNS0A-
OPTIONAL JUMPER FOR DUAL PHASE
SINGLE OUTPUT CONFIGURATION
SVIN
INTVCC
INTVCC
SNUB0
VOUT1
C3
OPT
VOS1+R
RUN0
R23 OPT
R22 100
VIN1
VIN1
VIN1
VIN1
VIN1
VIN1
VIN1
VIN1
VIN1
H12
J11
J12
K11
K12
L11
L12
M11
M12
0
R6
VIN0
VIN0
VIN0
VIN0
VIN0
VIN0
VIN0
VIN0
VIN0
R1
100
P2
C4
OPT
A11
A12
B11
B12
C11
C12
D11
D12
E12
R40
OPT
1210
N/A
SCALE = NONE
2
DATE:
HIGH EFFICIENCY, DC/DC STEP-DOWN, MODULE 
REGULATOR WITH POWER SYSTEM MANAGEMENT
IC NO. LTM4676/LTM4676A/LTM4675/LTM4677
REV.
DEMO CIRCUIT 2269A-A/D
Monday, November 10, 2014
SHEET
1
2
1
OF
1
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