DC1547B - Schematic

E1
R3
100K
R9
0
R4
C1
22uF
16V
L1
2.2uH
+ CIN1
100uF
16V
GND
E2
100K
E5
D1
U1
LT3757AEDD
1
2
9
OFF
1
2
C12
100pF
R6
20K
C11
4.7nF
4
R7
30.9K
C13
5
3
SHDN/UVLO
VC
VIN
INTVcc
10
8
C10
4.7uF
10V
FBX
RT
GATE
SYNC
SS
SENSE
7
6
5
Q1
RJK0328DPB
E3
4
C3
22uF
16V
123
C4
22uF
16V
VOUT
12V @ 1.5A
C5
22uF
16V
GND
E4
11
0.1uF
SYNC
DFLS220L-7
ON
3
JP1
RUN
GND
VCC
VIN
3.1V - 9V
R5
0.008
1W
R1
130K
1%
E6
R8
10K
R2
20.0K
1%
GND
E7
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.
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
High Efficiency Boost Converter
SIZE
N/A
DATE:
IC NO.
REV.
LT3757AEDD
DEMO CIRCUIT 1547B
Friday, April 17, 2015
1
SHEET
1
OF
1
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