DC1260A - Schematic

L1
+Vin
E1
+ C1
opt.
C Case
2.2uH
CDRH5D16NP-2R2NC
C2
4.7uF
10V
* U1
GND
E2
1
4
JP1
2
7
MODE
SW
1
Vout
8
E3
C3
33pF
JP3
1.8V
1
5
JP2
ON
2
OFF
3
FB
SD
R1
6
JP4
3.3V
C4
2 X 22uF
10V
PGND
C5
2.2uF
10V
E4
GND
249k
GND
Vout
1.8V/3.3V/5V
3
BURST
FIXED FREQ
Vin
GND
0.75V-5V
R3
499k
2
R2
20k
R4
R5
604k
715k
9
3
JP5
5V
4
EXT
SHDN
E5
Assembly Version
U1
DC1260A-A
LTC3539EDCB
DC1260A-B
LTC3539EDCB-2
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
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
CONTRACT NO.
APPROVALS
DATE
DRAWN
J. Wu
4/11/07
F. Hoffart
4/11/07
TECHNOLOGY
TITLE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC3539EDCB/LTC3539EDCB-2
ENGINEER
2A Synchronous Boost Converter
CHECKED
SIZE CAGE CODE
APPROVED
Monday, April 06, 2009
DWG NO
REV
DC1260A
SCALE:
FILENAME:
SHEET
A
1
OF
1
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