LT1934IS6 Ver la hoja de datos (PDF) - Linear Technology
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LT1934IS6 Datasheet PDF : 20 Pages
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LT1934/LT1934-1
TYPICAL PERFORMANCE CHARACTERISTICS
LT1934 Efficiency, VOUT = 5V
100
LT1934
VOUT = 5V
90
L = 47μH
TA = 25°C
VIN = 12V
80
VIN = 24V
70
60
50
0.1
1
10
100
LOAD CURRENT (mA)
1934 G01
LT1934 Efficiency, VOUT = 3.3V
100
LT1934
VOUT = 3.3V
90
L = 47μH
TA = 25°C
VIN = 5V
80
VIN = 24V
VIN = 12V
70
60
50
0.1
1
10
100
LOAD CURRENT (mA)
1934 G02
LT1934-1 Efficiency, VOUT = 5V
100
LT1934-1
VOUT = 5V
90
L = 150μH
TA = 25°C
VIN = 12V
80
VIN = 24V
70
60
50
0.1
1
10
LOAD CURRENT (mA)
100
1934 G03
LT1934-1 Efficiency, VOUT = 3.3V
100
LT1934-1
VOUT = 3.3V
90
L = 100μH
TA = 25°C
80
VIN = 12V
VIN = 24V
70
60
50
0.1
1
10
LOAD CURRENT (mA)
100
1934 G04
Current Limit vs Temperature
500
LT1934
400
300
200
LT1934-1
100
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1934 G05
Frequency Foldback
16
TA = 25oC
14
12
10
8
6
4
2
0
0 0.2 0.4 0.6 0.8 1.0 1.2
FEEDBACK PIN VOLTAGE (V)
1934 G07
VFB vs Temperature
1.27
1.26
1.25
1.24
1.23
1.22
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1934 G08
4
Off Time vs Temperature
3.0
2.5
2.0
1.5
1.0
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1934 G06
SHDN Bias Current
vs SHDN Voltage
2.0
TA = 25°C
1.5
1.0
0.5
0
02
4
6
8 10 12
SHDN PIN VOLTAGE (V)
1934 G09
1934fe
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