DC1228A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
__
2
VIN
E2
GND
C2
4.7uF
50V
1210
R2
OPT
0603
C12
1uF
50V
0805
SANYO
50CE22BS
E3
7
SHDN
SHDN/UVLO
BIAS
R6
93.1K
RFB
6
R7
13 84.5K
TC
RILIM
1
3
8
9
16
17
12
R10
10K
C7
0.1uF
1. ALL RESISTORS ARE IN OHMS, 0402
ALL CAPACITORS ARE IN MICROFARADS, 0402.
VOUT-
C
OPTIONAL CIRCUIT
4
VIN
TAIYO YUDEN
FB MJ3216HS800
FB1
BEAD
C20
0.01UF,50V
0603
SUMIDA
CDRH4D22/HP
L1
10UH
C19
4.7UF,50V
1210
+
VIN
C5
22UF,50V
SANYO
50CE22BS
C14
0.033UF
C11
C8
4700pF
100pF
R11
6.04K
C13
10PF
C9
1uF
50V
0805
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
4
B
1206
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
E6
VOUT-
D2
1N4148WS
CUSTOMER NOTICE
NOTE: UNLESS OTHERWISE SPECIFIED
E5 VOUT+
[email protected], VIN<20V
[email protected], VIN>20V
C4
47uF,10V
1210
8
R15
12.4K
R9
20K
06-05-13
VOUT+
R4
499
0805
7
RREF
SW
SS
B
A
4
TEST
VC
10
Zhongming Y.
D
1
14
11
2
D3
CMDSH-3
1
2
GND
GND
GND
GND
GND
GND
2
01-14-10
6
2
3
C
15
R8
2K
0805
U1
LT3573EMSE
VIN
R3
357K
C10
0.22uF
25V
0603
5
TIGER Z.
1
22UF
50V
2
+C1
5
VIN
10V - 30V
DATE
D1
B340A
D
1
APPROVED
PRODUCTION
CHANGED: C11,R15,R4
2-1
T1
WURTH, 750370047
E1
DESCRIPTION
3
TECHNOLOGY
KT
TIGER Z.
TITLE: SCHEMATIC
A
ISOLATED MONOLITHIC FLYBACK CONVERTER
SIZE
IC NO.
REV.
LT3573EMSE
N/A
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
2-1
DEMO CIRCUIT 1228A
Wednesday, June 05, 2013
2
SHEET 1
1
OF
1
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