LT3973IMSE-3.3 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT3973IMSE-3.3
Linear Technology
LT3973IMSE-3.3 Datasheet PDF : 24 Pages
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LT3973/LT3973-3.3/LT3973-5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Efficiency, VOUT = 3.3V
90
VIN = 12V
80
70
VIN = 24V
VIN = 36V
60
50
40
FRONT PAGE APPLICATION
30
VOUT = 3.3V
R1 = 1M
R2 = 576k
20
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
LOAD CURRENT (A)
3973 G01
Efficiency, VOUT = 5V
90
VIN = 12V
80
70
VIN = 24V VIN = 36V
60
50
40
FRONT PAGE APPLICATION
30
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
LOAD CURRENT (A)
3973 G02
Efficiency, VOUT = 3.3V
90
80
VIN = 12V
70
60
VIN = 24V
VIN = 36V
50
40
30
20
0.01
FRONT PAGE APPLICATION
VOUT = 3.3V
R1 = 1M
R2 = 576k
0.1
1
10
100
LOAD CURRENT (mA)
3973 G03
Efficiency, VOUT = 5V
90
VIN = 12V
80
70
60
VIN = 24V
VIN = 36V
50
40
30
0.01
FRONT PAGE APPLICATION
0.1
1
10
100
LOAD CURRENT (mA)
3973 G04
LT3973 Feedback Voltage
1.220
1.215
1.210
1.205
1.200
1.195
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G05
LT3973-3.3 Output Voltage
3.32
3.31
3.30
3.29
3.28
3.27
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G06
LT3973-5 Output Voltage
5.04
5.02
5.00
4.98
4.96
4.94
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G07
No-Load Supply Current
4.0
FRONT PAGE APPLICATION
VOUT = 3.3V
3.5
R1 = 1M
R2 = 576k
LT3973-3.3
3.0
2.5
2.0
1.5
5
10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3973 G08
For more information www.linear.com/LT3973
No-Load Supply Current
35
FRONT PAGE APPLICATION
30
VIN = 12V
VOUT = 3.3V
R1 = 1M
25 R2 = 576k
20
15
10
5
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G09
3973fb
5
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