DC1643A - Schematic

5
4
3
2
1
REVISION HISTORY
1
D3 CMDSH-3
D
1
2
T1
2
REV
DESCRIPTION
DATE
APPROVED
2
PRODUCTION
07/02/10
Zhongming Y.
1
2
6
5
D1
E5
3
VOUT+
1
ECO
UPS840
VIN
6
SHDN
SHDN/UVLO
SW
SW
R6
93.1k
1%
R15
24.9k
1%
B
NC
NC
VC
15
16
C7
0.1uF
GND
9
SS
RREF
14
R10
10k
1%
RILIM
TEST
7
TC
13
8
RFB
DFLZ5V6
5.6V
E6
VOUT-
VOUT-
750311675
D2
DFLS1100
3
C
4
OPTIONAL CIRCUIT
R7
80.6k
1%
12
R9
28.7k
1%
8
R4
OPT
0805
2
NC
E3
C
C9
1uF
50V
0805
5
1
R3
357K
1%
BIAS
SUN ELECT.
50CE22BS
U1
LT3575EFE
R8
2k
1%
0805
7
3
C4
47uF
1210
10V
D
1
C12
1uF
50V
0805
GND
E2
GND
C10
0.22uF
50V
0805
4
VIN
VIN
FB1
10
BEAD
L1
R11
6.04k
1%
C20
0.01uF
50V
C13
10pF
C19
4.7uF
50V
1210
C14
C8
100pF
10uH
SUMIDA
CDRH4D22/HP
TAIYO YUDEN
FB MJ3216HS800
11
17
22uF
50V
2
+ C1
C2
4.7uF
50V
1210
VIN
VIN
10V - 28V
2
D4
E1
VOUT+
+5V @1.4A, VIN > 10V
+5V @2.0A, VIN > 20V
+ C5
22uF
50V
SUN ELECT.
50CE22BS
OPT
B
1206
C11
2200pF
CUSTOMER NOTICE
NOTES: UNLESS OTHERWISE SPECIFIED,
A
1. ALL CAPACITOR AND RESISTOR CASE SIZES ARE 0603.
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. MI
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
ENG. Zhongming Y. TITLE: SCHEMATIC
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
ISOLATED MONOLITHIC FLYBACK
CONVERTER
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
4
3
N/A
DATE:
LT3575EFE
DEMO CIRCUIT 1643A
IC NO.
Wednesday, July 14, 2010
2
SHEET
1
REV
1
2
OF
1
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