DC1343A - Schematic

A
*
B
C
D
E
CIN1 IS AN OPTIONAL CAPACITOR. IT IS INSERTED
ON THE DC1343A TO DAMPEN THE (POSSIBLE)
RINGING VOLTAGE DUE TO THE LONG INPUT LEADS.
ON A NORMAL, TYPICAL PCB, WITH SHORT TRACES,
THE CAPACITOR IS NOT NEEDED.
4
4
U1
LTC3564EDCB
E1
2.5V - 5.5V
+
CIN1
22uF
GND
*
CIN
22uF
6.3V
1206
VIN
SW
1
6
RUN
Vfb
4
7
GND
L1
1.7uH
CDRH2D18/HP-1R7NC
Sumida
SGND
3
PGND
VIN
COUT
22uF
6.3V
1206
COUT1
0.1uF
USER SELECT
3
5
2
E2
RFB1
402K
1%
(Opt)
VOUT
1.2V
1
JP2
3
1.5V
RSD
1.0M
JP1
GND
GND
3
RFB2
402K
1%
2
OFF
E5
VOUT
1.25A(max)
CFFW
22pF
ON
E4
RFB6
JP5
E3
JP3
2
1.8V
RFB3
200K
1%
RFB4
200K
1%
2
JP4
RFB5
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.
1
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
A
B
0
CONTRACT NO.
APPROVALS
DRAWN
AntoninaK
DATE
9/28/07
CHECKED
TECHNOLOGY
TITLE
APPROVED
ENGINEER
Tom Gross
9/28/07
DESIGNER
Sunday, December 07, 2008
C
SIZE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC3564EDCB
Synchronous Monolithic Buck Regulator
CAGE CODE
SCALE:
DWG NO
FILENAME:
D
1
REV
DC1343A
SHEET
1
E
3
OF
1
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