DC1072B - Schematic

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REVISION HISTORY
This circuit is proprietary to Linear Technology and supplied
for use with Linear Technology parts.
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
Applications Engineering for assistance.
ECO
REV
DESCRIPTION
1
DATE
PROD
APPROVED
07/25/08
D
D
U1
LTC3561AEDD
L1
VOUT
VFB
ITH
8
+
Cout2
0.1uF
1
Cc
1000pF
Rfb5
OPT
C1
OPT
USER
SELECT
JP2
Rfb3
287K, 1%
1.8V
7
OFF ON
Rfb4
200K, 1%
Rfb2
499K, 1%
2
JP1
Rc
16.2K
1.2V
1.5V
E4
GND
1
2
Rset
549K, 1%
3
Rfb1
249K, 1%
1.8V/1.5V/1.2V
Cout3
1.0A
OPT
C
6
SD/RT
5
1
Rs1
1M
8
E2
Cffw
10pF
6.3V
2
0
Cbyp
OPT
GND
SVIN
7
4
6
3
Rfilt
PGND
Cin1
10uF
6.3V
2.2uH
D1
Cout1
22uF
OPT
4
Cin2
1uF
OPT
E3
3
SW
1
PVIN
2
C
Cin3
22uF
16V
+
5
SGND
2.5V-5.5V
VIN
*
E1
VIN
E5
GND
B
B
CONTRACT NO.
APPROVALS
A
DRAWN
* CIN3 IS AN OPTIONAL CAPACITOR. IT IS INSERTED ON THE DC1072B TO DAMPEN THE (POSSIBLE)
MI
CHECKED
APPROVED
RINGING VOLTAGE DUE TO LONG INPUT LEADS. ON A NORMAL, TYPICAL PCB
ENGINEER
WITH SHORT TRACES, THE CAPACITOR IS NOT NEEDED.
DESIGNER
DATE
03/01/06
TECHNOLOGY
TITLE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
SCH, LTC3561AEDD, 1A SYNCHRONOUS MONOLITHIC
BUCK REGULATOR
SIZE CAGE CODE
DWG NO
REV
DC1072B
Friday, July 25, 2008
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FILENAME:
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