LT1913IDD 查看數據表（PDF） - Linear Technology
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LT1913IDD Datasheet PDF : 24 Pages
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LT1913
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted.
Efficiency
100
Efficiency
100
Efficiency
100
3.0
VIN = 12V
90
90
VIN = 12V
90
2.5
80
VIN = 24V
70
60 VOUT = 5V
L = 4.7μH
f = 600kHz
50
0 0.5 1 1.5 2 2.5
OUTPUT CURRENT (A)
3 3.5
1913 G01
Maximum Load Current
5.5
TYPICAL
5.0
4.5
MINIMUM
4.0
3.5
VOUT = 3.3V
3.0 TA = 25°C
L = 4.7μH
f = 600kHz
2.5
5
10
15
20
INPUT VOLTAGE (V)
25
1913 G06
Switch Current Limit
6.5
6.0
5.5
DUTY CYCLE = 10 %
5.0
4.5
DUTY CYCLE = 90 %
4.0
3.5
3.0
2.5
2.0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1913 G09
80
80
2.0
VIN = 24V
70
70
1.5
60 VOUT = 3.3V
L = 3.3μH
f = 600kHz
50
0 0.5 1 1.5 2 2.5
OUTPUT CURRENT (A)
3 3.5
1913 G02
Maximum Load Current
5.5
60
VIN = 12V
VOUT = 5V
L = 4.7μH
f = 600kHz
50
0 0.5 1 1.5 2 2.5
OUTPUT CURRENT (A)
1.0
0.5
3 3.5
1913 G03
Switch Current Limit
6.0
5.0
TYPICAL
4.5
MINIMUM
4.0
3.5
VOUT = 5V
TA = 25°C
L = 4.7μH
f = 600kHz
3.0
5
10
15
20
INPUT VOLTAGE (V)
25
1913 G07
Switch Voltage Drop
700
600
500
400
300
200
100
0
0
1
2
3
4
5
SWITCH CURRENT (A)
1913 G10
5.5
5.0
4.5
4.0
3.5
3.0
0
20
40
60
80 100
DUTY CYCLE (%)
1913 G08
Boost Pin Current
120
105
90
75
60
45
30
15
0
0
1
2
3
4
5
SWITCH CURRENT (A)
1913 G11
1913f
4
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