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LT8303 Datasheet(PDF) 19 Page - Linear Technology

Part # LT8303
Description  100VIN Micropower Isolated Flyback Converter with 150V/450mA Switch
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT8303 Datasheet(HTML) 19 Page - Linear Technology

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LT8303
19
8303f
For more information www.linear.com/LT8303
Typical applicaTions
30V to 80VIN, 3.3VOUT Isolated Flyback Converter
Efficiency vs Load Current
Output Load and Line Regulation
VIN = 36V
VIN = 48V
VIN = 72V
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
1.0
1.2
40
50
60
70
80
90
100
8303 TA02b
VIN = 36V
VIN = 48V
VIN = 72V
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
1.0
1.2
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
8303 TA02c
LT8303
T1
8:1
D2
D1
Z1
RFB
SW
150µH
2.3µH
EN/UVLO
1M
4.7µF
100V
49.9k
VIN
VIN
30V TO 80V
VOUT+
3.3V
4mA TO 0.9A (VIN = 36V)
4mA TO 1A (VIN = 48V)
4mA TO 1.1A (VIN = 72V)
VOUT–
GND
287k
D1: CENTRAL CMMR1U-02
D2: DIODES SBR3U30P1-7
T1: SUMIDA PS15-108
Z1: CENTRAL CMHZ5265B
•
•
330µF
6.3V
8303 TA02a



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