FAN5660 データシートの表示（PDF） - Fairchild Semiconductor
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FAN5660 Datasheet PDF : 9 Pages
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FAN5660
Typical Applications Diagrams
Unless otherwise specified TA=25°C,V+=5V, C1=C2=100µF, Iload=0, FC and LV open, using circuit in Figure 1
Supply Current vs. Supply Voltage
1.2
1.0
FC = V+
0.8
0.6 FC = V+,
LV = GND
0.4
0.2
LV to
GND
0
FC and LV open
1
2
3
4
5
6
Supply Voltage (V)
Supply Current vs. Oscillator Frequency
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1
10
100
Oscillator frequency (kHz)
Oscillator Frequency vs.
Supply Voltage, FC to V+
60
LV to GND
55
50
45
40
1.5 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
Oscillator Frequency vs. Supply Voltage
7
6
5
4
LV to
GND
3
1.5 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
Efficiency vs. Operating Frequency
100
Iload = 10mA
90
Iload = 80mA
80
70
60
1
Iload = 1mA
10
100
Operating Frequency (kHz)
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0
Efficiency vs. Load Current
V+ = 1.5V
V+ = 5.5V
V+ = 4.5V
V+ = 3.5V
V+ = 2.5V
20
40
60
80
100 120
Load Current (mA)
REV. 1.0.2 3/28/02
5
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