31151 データシートの表示（PDF） - Linear Technology
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31151 Datasheet PDF : 42 Pages
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LTC3115-1
Typical Performance Characteristics (TA = 25°C unless otherwise specified)
VCC Regulator Dropout Voltage
vs Temperature
0.25
VIN = 4V
IVCC = 20mA
0.20
0.15
0.10
0.05
0
–50
0
50
100
TEMPERATURE (°C)
150
31151 G23
Oscillator Frequency vs RT
10000
1000
100
10
100
RT (kΩ)
1000
31151 G26
RUN Pin Current
vs RUN Pin Voltage
7
VIN = 40V
6
5
4
3
2
1
0
–1
0
10
20
30
40
RUN PIN VOLTAGE (V)
31151 G29
RUN Pin Threshold
vs Temperature
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
–50
0
50
100
TEMPERATURE (°C)
150
31151 G24
Oscillator Frequency
vs Temperature
2.0
fSW = 1MHz
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–50
0
50
100
TEMPERATURE (°C)
150
31151 G27
Shutdown Current on VIN/PVIN
vs Input Voltage
3.0
VRUN = 0V
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
INPUT VOLTAGE (V)
31151 G30
For more information www.linear.com/LTC3115-1
RUN Pin Hysteresis Current
vs Temperature
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–50
0
50
100
TEMPERATURE (°C)
150
31151 G25
Oscillator Frequency vs VIN
2.0
fSW = 1MHz
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2
10
VIN (V)
40
31151 G28
Power Switch Resistance
vs Temperature
300
250
200
150
100
50
0
–50
0
50
100
TEMPERATURE (°C)
150
31151 G31
31151fb
7
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