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LT8331 Datasheet(HTML) 24 Page - Analog Devices

Part No. LT8331
Description  Low IQ Boost/SEPIC/Flyback/Inverting Converter with 0.5A, 140V Switch
Download  30 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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LT8331 Datasheet(HTML) 24 Page - Analog Devices

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LT8331
24
Rev. C
For more information www.analog.com
TYPICAL APPLICATIONS
10V to 48V Input, 240V Boost Converter
36V to 72V Input, 48V SEPIC Converter
8331 TA05
C5
0.1 F
D2
D3
C6
1 F
D1, D2, D3: DIODES INC. BAV21W
L1: SUMIDA CDRH8D43RT125NP-331MC
C1: MURATA GRM31CR61H106KA12L
C3, C6: MURATA GRM55DR72E105KW01L
C5: MURATA GRM31CR72D104KW03L
C7: MURATA GQM2195C2E4R7CB12J
200kHz
L1
330 H
R2
13.3k
R3
1M
R4
249k
C2
0.22µF
R5
154k
C4
1µF
VOUT1
IN
SW1-2
EN/UVLO
LT8331
VIN
10V TO
48V
R1
2M
SYNC/MODE
GND
FBX
BIAS
SS
C3
1 F
×2
C1
10 F
V
RT
INTVCC
D1
INTVCC
INTVCC
C7
4.7pF
VOUT2
VOUT2 = 240V
15mA AT VIN = 12V
35mA AT VIN = 48V
30mA AT VIN = 36V
25mA AT VIN = 24V
R6
100Ω
1/4W
8331 TA06
D1: ROHM RB558VA150TR
L1, L2: COILTRONICS DRQ127-221
C1: MURATA GRM32ER72A105KA01L
C3: MURATA GRJ32DC72A475KE11L
C5: MURATA GRM31CR72A225KA73L
R2
34.8k
C5
2.2µF
R3
1M
R4
59k
C4
0.1µF
R5
63.4k
C2
1µF
VOUT = 48V
IN
SW1-2
EN/UVLO
LT8331
VIN
36V TO
72V
L1
220 H
R1
1M
L2
220 H
150mA AT VIN = 36V
165mA AT VIN = 48V
190mA AT VIN = 72V
SYNC/MODE
GND
FBX
BIAS
SS
VOUT
450kHz
C3
4.7µF
×4
C1
1µF
×2
V
RT
INTVCC
D1


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