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LT3574 Datasheet(PDF) 19 Page - Linear Technology

Part # LT3574
Description  Isolated Flyback Converter Without an Opto-Coupler
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3574 Datasheet(HTML) 19 Page - Linear Technology

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LT3574

3574f
typical applications
VOUT+
5V
350mA
VOUT–
D1
C5
22µF
5.6µH
T1: PULSE PA3019NL
OR WÜRTH ELEKTRONIK 750370041
D1: B340A
D3: PMEG6010
C5: MURATA, GRM32ER71A226K
SHDN/UVLO
TC
SS
SW
VC
GND
BIAS
LT3574
3574 TA04
R6
28.7k
R5
10k
VIN
12V TO 24V
(30V*)
VIN
3:1:1
R1
499k
R2
71.5k
C1
10µF
T1
50µH
R4
6.04k
R3
80.6k
C3
1000pF
C4
4.7µF
C2
10nF
R7
59k
*OPTIONAL THIRD
WINDING FOR
30V OPERATION
D2
L1C
5.6µH
R8
4.02k
D3
C6
0.22µF
TEST
RILIM
RFB
RREF
•
•
•
5V Isolated Flyback Converter
Efficiency
IOUT (mA)
0
200
400
100
300
500 600 700
3574 TA04b
60
70
80
50
40
10
0
30
90
20
VIN = 24V
VIN = 12V



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