5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
DUAL PKG
*
*
NOTE FOR THIS PAGE:
*
*
TOP LAYER CIRCUITS FOR U1 AND U2 ARE ELECTRICALLY
ISOLATED FROM EACH OTHER. THEY DO NOT SHARE GND,
VIN, VAUX, OR VOUT. JUMPERS CAN BE USED TO
PARALLEL THE TWO CIRCUITS AS NECESSARY.
*CLARIFICATION: SHOWN HERE AS CONNECTED FOR TOP
LAYER CIRCUIT, BUT STUFFED ON BOTTOM LAYER.
# IF THE CTL PIN OF THE LTC4412 AND/OR LTC4414 IS NOT
USED, IT IS RECOMENDED THAT CTL BE CONNECTED TO
GND IN THE FINAL DESIGN.
ISOLATED
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
STAT1
S1A
VOUT2
GATE1
VCC2
S2A
VCC1
S1B
GATE2
S2B
VOUT1
VIN2
CTL2
VAUX2
CTL1
STAT2
VOUT2
S2B
CTL2
GATE2
VAUX2
VOUT1
S2A
S1A
GATE1
STAT2
S1B
VIN2
VIN1
VAUX1
STAT1
CTL1
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
www.linear.com
2
Monday, December 17, 2012
1
3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
www.linear.com
2
Monday, December 17, 2012
1
3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
www.linear.com
2
Monday, December 17, 2012
1
3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
JOSH Y.
2ND PROTOTYPE
2
11-9-10
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
JOSH Y.
2ND PROTOTYPE
2
11-9-10
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
JOSH Y.
2ND PROTOTYPE
2
11-9-10
E11
VOUT2
E11
VOUT2
E6
GND2
E6
GND2
E13
CTL1
E13
CTL1
R3
100K
R3
100K
R4
560K
(OPT)
R4
560K
(OPT)
J7
VIN2
5V - 36V @ 8A
J7
VIN2
5V - 36V @ 8A
COUT2
0.1uF
50V
0805
COUT2
0.1uF
50V
0805
E8
GND2
E8
GND2
J5
VAUX2
5V - 36V @ 8A
J5
VAUX2
5V - 36V @ 8A
E2
GND1
E2
GND1
R1
680K
R1
680K
COUT1
0.1uF
50V
0805
COUT1
0.1uF
50V
0805
Q2 Si7463DP
Q2 Si7463DP
1
2
5
3
4
6
7
8
J11
VOUT2
5V - 36V @ 8A
J11
VOUT2
5V - 36V @ 8A
J8
GND2
J8
GND2
E9
VOUT1
E9
VOUT1
E15
VCC1
E15
VCC1
J6
GND2
J6
GND2
E7
VIN2
E7
VIN2
E14
STAT1
E14
STAT1
JMP3
JMP3
E4
GND1
E4
GND1
R5
0
R5
0
E12
GND2
E12
GND2
R6
0
R6
0
E1
VAUX1
E1
VAUX1
JMP2
JMP2
J3
VIN1
2.5V - 18V @ 2A
J3
VIN1
2.5V - 18V @ 2A
Q3 Si7463DP
Q3 Si7463DP
1
2
5
3
4
6
7
8
E16
STAT2
E16
STAT2
CIN1
0.1uF
50V
0805
CIN1
0.1uF
50V
0805
CIN2
0.1uF
50V
0805
CIN2
0.1uF
50V
0805
U2
LTC4414EMS8
U2
LTC4414EMS8
VIN
7
CTL
2
STAT
1
SENSE
6
GND
3
NC
5
NC
4
GATE
8
JMP1
JMP1
E18
CTL2
E18
CTL2
U1
LTC4412HVIS6
U1
LTC4412HVIS6
VIN
1
CTL
3
STAT
4
SENSE
6
GND
2
GATE
5
Q1A
SiA921EDJ
Q1A
SiA921EDJ
6
2
1
7
E5
VAUX2
E5
VAUX2
J2
GND1
J2
GND1
JMP4
JMP4
J12
GND2
J12
GND2
J1
VAUX1
3V - 18V @ 2A
J1
VAUX1
3V - 18V @ 2A
E17
VCC2
E17
VCC2
E10
GND1
E10
GND1
E3
VIN1
E3
VIN1
Q1B
SiA921EDJ
Q1B
SiA921EDJ
4
3
5
8
J10
GND1
J10
GND1
R2
560K
(OPT)
R2
560K
(OPT)
J9
VOUT1
2.5V - 18V @ 2A
J9
VOUT1
2.5V - 18V @ 2A
J4
GND1
J4
GND1
