DC1050A - Schematic

5
D
4
3
2
1
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 customers 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
DATE
APPROVED
1
PROTO
01/23/06
2
Changes
09/20/06
D
U1 LT3503EDCB
C
2
63V
C2
RUN
1uF
1
25V
SHDN
3
JP1
1%
E9
0.1uF
SW 4
L1
D1
2 GND
CMDSH-4E
2
C3
R3
100K
GND
6 SHDN
D2
1
BOOST 3
FB 1
2
+
10uF
2
4.5V - 20V C9
5 VIN
E3
2.2uH
1
E1
1
VIN
SUMIDA
CDRH4D15/SNP-2R2NC
MBRM130T3G
3.3V [2]
C1
22uF
C7
R1
22pF
36.5K
0.1uF
C
E4
1%
C11
VOUT
GND
R2
11.3K
1%
B
B
NOTES: UNLESS OTHERWISE SPECIFIED,
[1] DO NOT STUFF.
[2]
VIN (V)
5.5V
A
8.5V
CONTRACT NO.
IOUT (A)
APPROVALS
DRAWN
1A
MEI
DATE
01/23/06
CHECKED
SCH, LT3503EDCB, 1.2A, 2.2MHz STEP-DOWN SWITCHING
REGULATOR IN 2mmX3mm DFN
APPROVED
1.2A
ENGINEER
DESIGNER
Friday, September 29, 2006
5
TECHNOLOGY
TITLE
4
3
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
SIZE
CAGE CODE
SCALE:
DWG NO
FILENAME:
2
1050A-2.DSN
REV
DC1050A
SHEET
2
1
1
OF
2
A
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