DC1106A - Schematic

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4
3
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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
DATE
PROTO
2
APPROVED
05/14/08
D
D
TP2
VIN_BUCK
VIN BUCK
C1
2.2uF
X7R
50V
R1 OPT [1]
TP1
R2 OPT [1]
VIN_BOOST
4
23
SW1
1
24
19
1
C5
22uF
6.3V
2
C11
1uF
DFLS140
R5 32.4K 1%
TP10
GND
3
21
FB3
20
VC2
18
RT
R8 22.1K 1%
R10
C7
1nF
15
GND
1
10.2K
C13
1%
Q1
FMMT618
TP7
2
NP_DRIVE
25
GND
100K
GND
R12
R9 100K
FB2
SYNC
GND
14
16
3
SHDN3
SW2
3
C
3.3V@1A
R6 10.2K 1%
6
JP2
SHDN2
13
5
3.3V
1
OFF
2
ON
R7 100K
12
SS2
3
SHDN1
17
12V
1
JP1
11
SS1
R4
10K
1%
FB1
8
VIN_BUCK
C4
10uF
16V
10
9
GND
1uF
2
C12
TP11
TP6
CDRH6D28NP-100
100nF
D3
R3 143K 1%
VC1
TP5
L2 10uH
C3
BOOST
DFLS120
12V@275mA
CMDSH-3
BIAS
2
IN3
D2
1
C
22
D1
U1
LT3570EUF
1
10uH
CDRH6D28NP-100
IN2
GND
L1
2
C2
4.7uF
16V
TP3
7
3.3V - 10V
IN1
VIN BOOST
R16
0
2
TP4
GND
IN2
4V - 36V
2.5V@100mA
C6
C15
2.2uF
1uF
TP9
GND
OPT
2.5V
1
OFF
2
ON
B
JP3
3
C8
C9
R11 100K
C14
C10
1nF
100nF
R13
44.2K
1%
R14
22K
B
100nF
OPT
TP8
ON
OFF
R15
22K
SYNC
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCE ON ANGLE - - 2 PLACES - - - 3 PLACES - - INTERPRET DIM AND TOL
PER ASME Y14.5M -1994
A
THIRD ANGLE PROJECTION
CONTRACT NO.
APPROVALS
DRAWN MEI
DATE
05/10/06
CHECKED
TECHNOLOGY
TITLE
APPROVED
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
SCH, LT3570EUF, DC/DC BOOST, BUCK AND
LDO CONVERTER
ENGINEER
DESIGNER
NOTES: UNLESS OTHERWISE SPECIFIED,
[1] DO NOT STUFF.
DO NOT SCALE DRAWING
5
SIZE
CAGE CODE
Custom
4
3
Thursday, June 19, 2008
SCALE: NONE
2
DWG NO
REV
2
DC1106A
FILENAME: 1106A-2.DSN
SHEET
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