cat660 Catalyst Semiconductor, cat660 Datasheet - Page 4

• Manufacturer Part Number: cat660
• Description: 100ma Cmos Charge Pump Inverter/doubler
• Manufacturer: Catalyst Semiconductor

Figure 1. Test Circuit
Doc. No. MD-5000, Rev. W
TYPICAL OPERATING CHARACTERISTICS
Typical characteristic curves are generated using the test circuit in Figure 1. Inverter test conditions are: V+=5V, LV
= GND, BOOST/FC = Open and T
half the oscillator frequency.
150
120
10
90
60
30
8
6
4
2
0
0
1
1
V +
2
2
INPUT VOLTAGE [V]
INPUT VOLTAGE [V]
+
No Load
3
3
C 1
150 F
Voltage Inverter
100
4
4
Load
A
= 25˚C unless otherwise indicated. Note that the charge-pump frequency is one-
1
2
3
4
5
5
BOOST/FC
CAP+
GND
CAP-
CAT660
6
6
OSC
OUT
V+
LV
4
8
7
6
5
120
100
80
60
40
20
0
8
7
6
5
4
3
2
-50
-50 -25
I S
-25
V +
5V
+
0
VIN = 5V
VIN = 3V
VIN = 2V
0
VIN = 2V
VIN = 3V
VIN = 5V
C2
150 F
C OSC
25
25
External
Oscillator
50
50
75 100 125
R L
I L
75
V OUT
100
125