DC1636A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
DESCRIPTION
1-1
CHANGED: C11,R15,R4
DATE
APPROVED
06-05-13
Zhongming Y.
D1 B240A
1
D3 CMDSH-3
D
1
2
E1
VIN
C12
1
50V
0805
GND
SANYO
50CE22BS
U1
R3
357K
1%
C9
1
50V
0805
LT3574EMS
5
VIN
E3
C
7
SHDN
SHDN/UVLO
SW
C10
0.22
50V
0805
R8
4.02K
1%
0805
2
5
4
7
3
8
2
E5
1
VOUT+
R4
1.4K
1%
0805
C4
47
1210
10V
E6
750370041
VOUT-
C
OPTIONAL CIRCUIT
VIN
R9
20K
1%
R10
10K
1%
12
C7
0.1
RILIM
SS
VC
R15
12.4K
1%
B
FB1
BEAD
L1
RREF
C20
0.01
0603
50V
14
R11
6.04K
1%
C19
4.7
50V
1210
C13
10pF
C14
C8
100pF
10uH
SUMIDA
CDRH4D22/HP
TAIYO YUDEN
FB MJ3216HS800
TEST
GND
GND
GND
GND
GND
10
VIN
13
TC
2
1
3
8
9
16
11
VOUT-
D2
DFLS1100
R7
84.5K
1%
15
[email protected], VIN > 20V
4
R6
93.1K
1%
RFB
D
VOUT+
[email protected], VIN < 20V
1
R2
0603
OPT
6
2
22
50V
E2
C2
4.7
50V
1210
6
+C1
BIAS
VIN
10V - 30V
T1
+C5
22
50V
SANYO
50CE22BS
0.033uF
B
1206
C11
4700pF
CUSTOMER NOTICE
NOTES: UNLESS OTHERWISE SPECIFIED,
A
1. ALL RESISTOR CASE SIZES ARE 0402.
2. ALL CAPACITOR VALUES ARE IN MICROFARADS,
AND CASE SIZES ARE 0402.
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. MI
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
ENG. TIGER Z.
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.
5
4
3
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
A
ISOLATED MONOLITHIC FLYBACK
CONVERTER
SIZE
A
DATE:
LT3574EMS
DEMO CIRCUIT 1636A
Monday, January 11, 2010
SHEET 1
IC NO.
2
1
REV
1-1
OF
1
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