CAT661_12 Datasheet, PDF (6/14 Pages) ON Semiconductor – High Frequency 100 mA CMOS Charge Pump, Inverter/Doubler

Voltage Doubler
V⁺
C_{1 +}
100 mF
V+
5V
CAT661
CAT661
1
BOOST/FC
8
V+
2
CAP+
7
OSC
3
GND
6
LV
4
CAP−
OUT ⁵
10 V V_OUT
External
Oscillator
C2
100 μF
Figure 14. Test Circuit Voltage Doubler
3000
TYPICAL OPERATING CHARACTERISTICS
(Typical characteristic curves are generated using the circuit in Figure 14. Doubler test conditions are:
V+ = 5 V, LV = GND, BOOST/FC = Open and T_A = 25°C unless otherwise indicated.)
10
2500
2000
1500
1000
500
8
6
FC = V+
4
FC = open
2
0
0
1
2
3
4
5
6
INPUT VOLTAGE (V)
Figure 15. Supply Current vs. Input Voltage
(No Load)
10,000
0
1
2
3
4
5
6
INPUT VOLTAGE (V)
Figure 16. Output Resistance vs. Input Voltage
1.0
1,000
No Load
100
0.8
0.6
V+ = 3 V
0.4
V+ = 5 V
0.2
10
1
10
100
1,000
OSCILLATOR FREQUENCY (kHz)
Figure 17. Supply Current vs. Oscillator
Frequency
0
0
20
40
60
80
100
LOAD CURRENT (mA)
Figure 18. Output Voltage Drop vs. Load
Current
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