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LT8331 Datasheet(HTML) 4 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) 4 Page - Analog Devices

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LT8331
4
Rev. C
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Frequency
vs Temperature
Switching Frequency vs VIN
Normalized Switching Frequency
vs FBX Voltage
Switch Current Limit vs
Duty Cycle
Switch Minimum On-Time
vs Temperature
Switch Minimum Off-Time
vs Temperature
FBX Positive Regulation Voltage
vs Temperature
FBX Negative Regulation Voltage
vs Temperature
EN/UVLO Pin Thresholds
vs Temperature
VIN = 12V
JUNCTION TEMPERATURE (°C)
–50 –25 0
25 50 75 100 125 150 175
1.570
1.580
1.590
1.600
1.610
1.620
1.630
8331 G01
VIN = 12V
JUNCTION TEMPERATURE (°C)
–50 –25 0
25 50 75 100 125 150 175
–0.815
–0.810
–0.805
–0.800
–0.795
–0.790
–0.785
8331 G02
VIN = 12V
EN/UVLO RISING (TURN-ON)
EN/UVLO FALLING (TURN-OFF)
JUNCTION TEMPERATURE (°C)
–50 –25 0
25 50 75 100 125 150 175
1.54
1.57
1.60
1.63
1.66
1.69
1.72
1.75
1.78
1.81
1.84
8331 G03
VIN = 12V
JUNCTION TEMPERATURE (°C)
–50 –25 0
25 50 75 100 125 150 175
475
480
485
490
495
500
505
510
515
520
525
8331 G04
VIN (V)
0 10 20 30 40 50 60 70 80 90 100
475
480
485
490
495
500
505
510
515
520
525
8331 G05
VIN = 12V
FBX VOLTAGE (V)
–0.8
–0.4
0.0
0.4
0.8
1.2
1.6
0
25
50
75
100
125
8331 G06
VIN = 12V
DUTY CYCLE (%)
0
20
40
60
80
100
0.50
0.55
0.60
0.65
0.70
8331 G07
SYNC = 0V
SYNC = INTVCC
JUNCTION TEMPERATURE (°C)
–50 –25 0
25 50 75 100 125 150 175
130
140
150
160
170
180
190
200
8331 G08
JUNCTION TEMPERATURE (°C)
–50 –25 0
25 50 75 100 125 150 175
110
120
130
140
150
160
170
180
8331 G09


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