10
Rev. 0
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
1.2V
VOUT
MODE/SYNC
GND
EN
SSTT
PGOOD
GND
GND
GND
VOUT
GND
VOUT SNSE
GND SNSE
VIN SNSE
GND SNSE
(VIN MAX)
FSW = 2MHz
MASTER
SKU#
DO NOT POPULATE
TPA
TPB
DNP
DESCRIPTION
DATE
REV
REVISION HISTORY
APPROVED
ECO
SLAVE 3
NONE
SLAVE 2 & 3
R9
R10
R11
R12
R13
R14
DC3186A-A
DC3186A-B
DC3186A-C
0
DNP
100k
301k
301k
100k
174k
243k
DNP
243k
174k
0
ASSEMBLY OPTIONS TABLE
HI
LO
* SEE TABLE
*
DNP
DNP
-
02
PRODUCTION
09/20/21
NOTES: UNLESS OTHERWISE SPECIFIED 1. RESISTORS: OHMS, 0402, 1%, 1/16W 2. CAPACITORS: 0402
25A
37.5A
IOUT
50A
*
DNP
DNP
DNP
DNP
# OF
PHASES
4
2
3
SLAVE 1
SLAVE 2
SLAVE 3
EN
GND
VIN
3.0V - 5.5V
VIN
3.3V TO 1.2V AT 50A, 37.5A, 25A, MULTIPHASE 2MHz AUTOMOTIVE LOW EMI BUCK REGULATOR IN A 1.18cm² PER PHASE SOLUTION
MODECOM
VOUT
EN
ITH
PGOOD
VIN
DATE:
SHEET
OF
TITLE: SCHEMATIC
APPROVALS
PCB DES.
APP ENG.
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO.
IC NO.
ANALOG DEVICES 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 ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
14
NC
WL
710-DC3186A_REV02
N/A
LTC3311
09/20/21
DATE:
SHEET
OF
TITLE: SCHEMATIC
APPROVALS
PCB DES.
APP ENG.
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO.
IC NO.
ANALOG DEVICES 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 ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
14
NC
WL
710-DC3186A_REV02
N/A
LTC3311
09/20/21
DATE:
SHEET
OF
TITLE: SCHEMATIC
APPROVALS
PCB DES.
APP ENG.
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO.
IC NO.
ANALOG DEVICES 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 ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
14
NC
WL
710-DC3186A_REV02
N/A
LTC3311
09/20/21
C6 0.1uF
JP1
U1
LTC3311JV
EN
1
SW
6
FB
18
ITH
17
MODE/SYNC
13
RT
15
PGOOD
14
SSTT
16
VIN
3
PGND
5
AGND
2
VIN
11
VIN
12
VIN
4
SW
7
SW
8
SW
9
PGND
19
PGND
10
C2 1uF
0201
R2 100K
E10
C19 22uF
0805
E1
L1
0.1uH
XEL4030-101MEB
E9
R1 1M
E7
R6 140k
E2
R7 100k
E14
C7 0.01uF
0201
C12 0.1uF
TP1
C13 OPT
JP2
1
2
E3
E8
E24
R4 274k
C11
6.8pF
E15
R5
OPT
E16
E13
E25
E12
C4 22uF
0805
E11
E21
C3 22uF
0805
C53 10uF
0603
RG1 20
C5 22uF
0805
R3
249k
R8 3.32k
E17
C14 470pF
E5
C9 0.1uF
C10 22uF
0805
C8 0.01uF
0201
VFB1
RT1
SW1
VIN
VOUT