參數(shù)資料
型號(hào): CAT660EVA
英文描述: 100mA CMOS Charge Pump Inverter/Doubler
中文描述: 100mA的CMOS電荷泵逆變器/倍增
文件頁數(shù): 10/16頁
文件大?。?/td> 497K
代理商: CAT660EVA
CAT660
10
Doc. No. 5000, Rev. U
POSITIVE VOLTAGE DOUBLER
The voltage doubler circuit shown in figure 8 gives V
OUT
= 2 x V
IN
for input voltages from 2.5V to 5.5V.
Figure 8: Voltage Doubler
1
2
3
4
8
7
6
5
CAT660
+
BOOST/FC
CAP+
GND
CAP-
VOUT = 2VIN
+
VIN
2.5V to 5.5V
1N5817*
*SCHOTTKY DIODE IS FOR START-UP ONLY
V+
OSC
LV
OUT
TYPICAL APPLICATIONS
VOLTAGE INVERSION POSITIVE-TO-NEGATIVE
The CAT660 easily provides a negative supply voltage from a positive supply in the system. Figure 7 shows a typical
circuit. The LV pin may be left floating for positive input voltages at or above 3.3V.
Figure 7: Voltage Inverter
+
VOUT = -VIN
C2
1
2
3
4
8
7
6
5
CAT660
NC
+
C1
VIN
1.5V to 5.5V
BOOST/FC
CAP+
GND
CAP-
V+
OSC
LV
OUT
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