DC1040A - Schematic

5
4
3
2
SW300
1
L1
3.3UH
E1
C1
10UF,6.3V
0603
R1
0
C2
0.1UF
VOUT4
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VO
300
GND
C3
20PF
D
E2
R2
133K
D
FB300
R3
107K
SW200A
L2
3.3UH
VIN
E5
VIN
2.25V - 5.5V
*
C8
4.7UF,10V
0603
C
VIN
16 RUN200B
15 VCC
14 GNDA
13 SW100
C5
0.1UF
SW200B 4
SW200A 5
RUN100
PGND 6
PVIN 7
E4
R5
0
GND
FB200A
C
R6
100K
C9 4.7UF,10V
VIN
0603
SW200B
L3
4.7UH
SW300 8
E7
C10
10UF,6.3V
0603
C11
0.1UF
R7
0
VOUT2
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VO
200B
GND
E8
R8
93.1K
C12
20PF
RUN200A
R9
2.2M
VOUT3
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VO
200A
17
RUN
VOUT1
ON
JP2
OFF
VO
100
10 FB300
9 RUN300
C6
OPT
FB200B 1
FB200A 2
RUN200A 3
12 RUN100
11 FB100
RUN
VOUT3
ON
JP1
OFF
VO
200A
R4
0
U1
VIN
GND
GND
C4
10UF,6.3V
0603
C7
10UF,10V
0805
E6
E3
FB200B
R10
2.2M
R11
107K
RUN
VOUT2
ON
JP3
OFF
VO
200B
B
RUN
VOUT4
ON
JP4
OFF
VO
300
RUN300
SW100
L4
10UH
RUN200B
R13
2.2M
E9
C13
10UF,6.3V
0603
R12
0
C15
20PF
R15
59K
R14
2.2M
C14
0.1UF
B
VOUT1
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VO
100
GND
E10
FB100
R16
118K
* FOR ASSEMBLY
VERSIONS
U1
-A
LTC3544EUD
-B
LTC3544BEUD
A
CUSTOMER NOTICE
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
2. INSTALL SHUNT ON JP1-JP4 PINS 1&2.
5
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.
CONTRACT NO.
APPROVALS
DRAWN:
TITLE: SCHEMATIC
CHECKED:
3
QUAD DC/DC CONVERTER
APPROVED:
ENGINEER: VICTOR K.
DESIGNER:
SIZE
A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
TECHNOLOGY
KIM T.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
2
DWG NO.
DC1040A-2 * LTC3544EUD/BEUD
Tuesday, January 23, 2007
SHEET
1
REV
A-2
1 OF 1
A
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