Linear Technology Analog Devices LTM4676A, Demo Manual

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11
DEMO MANUAL DC1811B-B
Rev. A
SCHEMATIC DIAGRAM
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
J1, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416 J2, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-
RC
TO DC1613A
ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN
PSM STACKING CONNECTORS:
OPTIONAL CIRCUIT FOR PROGRAMMING WITHOUT VIN
1206
TO DC2086A
WITH POWER SYSTEM MANAGEMENT
AUXVCC
EEWP
EESDA EESCL
AUX3V4
3V3
VIN
3V3
VDD33
VIN
3V3
VDD33
ALERTB
SDA
SCL
RUN0 RUN1
GPIO1B GPIO0B
SYNC
SHARE_CLK
VDD33
SIZE DATE:
.V
ER
.
ON
CI
SHEE
T
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
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
1
Monday, December 01, 2014
3
3
DUAL STEP-DOWN uMODULE REGULATOR
HZ
JIAN L.
N/A
LTM4676EY / LTM4676AEY
DEMO CIRCUIT 1811B-A/B
SIZE DATE:
.V
ER
.
ON
CI
SHEE
T
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
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
1
Monday, December 01, 2014
3
3
DUAL STEP-DOWN uMODULE REGULATOR
HZ
JIAN L.
N/A
LTM4676EY / LTM4676AEY
DEMO CIRCUIT 1811B-A/B
SIZE DATE:
.V
ER
.
ON
CI
SHEE
T
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
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
1
Monday, December 01, 2014
3
3
DUAL STEP-DOWN uMODULE REGULATOR
HZ
JIAN L.
N/A
LTM4676EY / LTM4676AEY
DEMO CIRCUIT 1811B-A/B
D8D8
2
1
R62 OPT R62 OPT
R6
3
0
R6
3
0
Q19
DMP3130L-7
Q19
DMP3130L-7
2
3
1
R66 0 R66 0
R7
4
OPT
R7
4
OPT
C28 10nF C28 10nF
R70 10 R70 10
R64 OPT R64 OPT
U3
24LC025-I/ST
U3
24LC025-I/ST A0
1
A1
2
A2
3
VSS
4
SDA
5
SCL
6
WP
7
VCC
8
E21
AUXP
E21
AUXP
R7
7
10K
R7
7
10K
R67 OPT R67 OPT
J1
2
DEMO HEADER (M)
J1
2
DEMO HEADER (M)
FAULTB
1
CTRL
2
ALERTB
3
SDA
4
SHARE_CLK
5
SCL
6
RESETB
7
AUXP
8
UNUSED
9
UNUSED
10
GND
11
GND
12
12V
13
12V
14
R89 OPT R89 OPT
R73 4.99K R73 4.99K
E30
RUN1
E30
RUN1
C26 100nF C26 100nF
E29
RUN0
E29
RUN0
R82 OPT R82 OPT
R72 4.99K R72 4.99K
R7
5
OPT
R7
5
OPT
R6
8
OPT
R6
8
OPT
R88 OPT R88 OPT
J1J1
AUXP
1
SDA
2
GND
3
SCL
4
LGKPWR
5
ALERTB
6
GPIO_1
7
OUTEN_0
8
OUTEN_1
9
GND
10
AUXSCL
11
AUXSDA
12
R6
5
0
R6
5
0
R69 10 R69 10
J1
1
DEMO HEADER (F)
J1
1
DEMO HEADER (F)
FAULTB
1
CTRL
2
ALERTB
3
SDA
4
SHARE_CLK
5
SCL
6
RESETB
7
AUXP
8
UNUSED
9
UNUSED
10
GND
11
GND
12
12V
13
12V
14
C27 10nF C27 10nF
D1 OPT D1 OPT
R83 OPT R83 OPT
R78 15.8k R78 15.8k
J13J13
AUX3V4
4
SCL
3
GND
2 1
SDA
D2 OPT D2 OPT
R6
1
OPT
R6
1
OPT