LT3574IMS 데이터 시트보기 (PDF) - Linear Technology
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LT3574IMS Datasheet PDF : 24 Pages
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LT3574
typical Applications
5V Isolated Flyback Converter
VIN
12V TO 24V
(30V*)
C1
10µF
R1
499k
VIN
SHDN/UVLO
R2
71.5k
LT3574
TC
RILIM
SS
RFB
RREF
SW
C6
0.22µF
R3
80.6k
3:1:1 D1
R8
4.02k
T1
50µH•
•
5.6µH
D3
VOUT +
5V
350mA
C5
22µF
VOUT –
R4
6.04k
T1: PULSE PA3019NL
OR WÜRTH ELEKTRONIK 750370041
D1: B340A
D3: PMEG6010
C5: MURATA, GRM32ER71A226K
R6
R5
28.7k 10k
VC
GND TEST BIAS
C2 R7
10nF 59k
C3
1000pF
C4
4.7µF
D2
•
L1C
5.6µH
*OPTIONAL THIRD
WINDING FOR
30V OPERATION
3574 TA04
Efficiency
90
80
70
60
50
40
30
20
10
VIN = 24V
VIN = 12V
0
0 100 200 300 400 500 600 700
IOUT (mA)
3574 TA04b
3574f
19
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