LT3971AIMSE-TRPBF Просмотр технического описания (PDF) - Linear Technology
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LT3971AIMSE-TRPBF Datasheet PDF : 24 Pages
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LT3971A/LT3971A-5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Efficiency, VOUT = 5V
100
90
VIN = 12V
80
70
VIN = 36V
60
VIN = 24V
50
40
30
VOUT = 5V
R1 = 1M
20 R2 = 309k
0 0.2
0.4 0.6 0.8
LOAD CURRENT (A)
1 1.2
3971A G01
Efficiency, VOUT = 3.3V
100
90
VIN = 12V
80
70
60
VIN = 36V
VIN = 24V
50
40
30
20
0 0.2 0.4 0.6 0.8 1 1.2
LOAD CURRENT (A)
3971A G02
Efficiency, VOUT = 5V
100
VOUT = 5V
90 R1 = 1M
R2 = 309k
80
70
VIN = 12V
60
VIN = 24V
VIN = 36V
50
40
30
20
10
0
0.01
0.1
1
10 100 1000
LOAD CURRENT (mA)
3971A G03
Efficiency, VOUT = 3.3V
90
80
VIN = 12V
70
60
VIN = 24V
VIN = 36V
50
40
30
20
10
0
0.01
0.1
1
10 100 1000
LOAD CURRENT (mA)
3971A G04
No Load Supply Current
100
DIODES, INC.
DFLS2100
10
1
–55 –25
5 35 65 95
TEMPERATURE (°C)
125 155
3971A G05
No Load Supply Current
4.0
3.5
LT3971A
3.0
VOUT = 3.3V
2.5
LT3971A-5
2.0
1.5
1.0
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
3971A G06
LT3971A Feedback Voltage
1.205
1.200
1.195
1.190
1.185
1.180
1.175
–55 –25
5 35 65 95
TEMPERATURE (°C)
125 155
3971A G07
LT3971A-5 Output Voltage
5.06
5.04
5.02
5.00
4.98
4.96
4.94
–55 –25
5 35 65 95
TEMPERATURE (°C)
125 155
3971A G08
4
Maximum Load Current
3.0
VOUT = 3.3V
2.5
TYPICAL
2.0
MINIMUM
1.5
1.0
0.5
0
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3971A G09
3971af
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