DC989B-A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
1
1
DESCRIPTION
ADD -B VERSION, PROD
DATE
APPROVED
01/14/14
VICTOR K.
D
D
VIN
Vin
C10
10uF
10V
1
L1
1.0uH
FDV0630-1R0
IPRG
SW
8
RUN
GND
E2
C9
0.1uF
NGATE
5
VOUT
Vout
E3
C1
100uF
10V
C2
100uF
10V
C11
OPT
C3
OPT
4
C7
47pF
C5
OPT
C
3
Q1
Si3460DDV
GND
E4
R3
17.4K 1%
5
6
7
8
R2
34.8K 1%
VIN
R1
11K 1%
RUN/SS
RUN/SS
C6
1800pF
Q3
Si4116DY
OPT
C4
(opt)
1
2
3
4
R6
OPT
B
[email protected]
C13
OPT
4
GND
VFB
D1
B320
7
C
R5
OPT
1
1
2
5
6
ITH
3
+
C8
470uF
Sanyo TPE
2
RUN/SS
2
3V-4.5V
6
U1
[1]
VIN
R4
5.11 K 1%
E1
For Demo Board
Test Only
B
1
ON
[1]
2
OFF
3
J1
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.
A
4
IC
-A
LTC3872ETS8
-B
LTC3872-1ETS8
CONTRACT NO.
APPROVALS
DATE
DRAWN Manjihng Xie/ MI
TECHNOLOGY
TITLE
CHECKED
APPROVED
ENGINEER
VICTOR K.
01/16/14 10:16:04
3
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
SCH, LTC3872ETS8/LTC3872-1ETS8,
Tiny, No RSENSE Boost Converter
01/14/14
DESIGNER Antonina K/ MI
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
VERSION
SIZE CAGE CODE
DWG NO
REV
Demo Circuit 989B
FILENAME: 989B-1.DSN
SCALE:
2
SHEET
1
1
1
OF
1
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