LT1913IDD データシートの表示（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.
Feedback Voltage
840
820
800
780
760
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1913 G12
Minimum Switch On-Time
140
120
100
80
60
40
20
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1913 G15
Boost Diode
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0.5
1.0
1.5
2.0
BOOST DIODE CURRENT (A)
1913 G18
Switching Frequency
1.20
RT = 34.0k
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1913 G13
Soft-Start
7
6
5
4
3
2
1
0
0 0.5 1 1.5 2 2.5 3 3.5
RUN/SS PIN VOLTAGE (V)
1913 G16
Error Amp Output Current
50
40
30
20
10
0
–10
–20
–30
–40
–50
–200
–100
0
100
200
FB PIN ERROR VOLTAGE (mV)
1913 G19
Frequency Foldback
1200
RT = 34.0k
1000
800
600
400
200
0
0 100 200 300 400 500 600 700 800 900
FB PIN VOLTAGE (mV)
1913 G14
RUN/SS Pin Current
12
10
8
6
4
2
0
0
5
10
15
20
25
RUN/SS PIN VOLTAGE (V)
1913 G17
Minimum Input Voltage
5.0
4.5
4.0
3.5
3.0
VOUT = 3.3V
2.5 TA = 25°C
L = 4.7μH
f = 600kHz
2.0
1
10
100
1000
LOAD CURRENT (mA)
10000
1913 G20
1913f
5
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