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参数资料
| 型号： | TC7660EOAG |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 10 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 18/18页 |
| 文件大小： | 396K |
| 代理商： | TC7660EOAG |
2002 Microchip Technology Inc.
DS21465B-page 9
TC7660
FIGURE 5-7:
Combined Negative
Converter And Positive Multiplier.
5.7
Efficient Positive Voltage
Multiplication/Conversion
Since the switches that allow the charge pumping
operation are bidirectional, the charge transfer can be
performed
backwards
as
easily
as
forwards.
Figure 5-8 shows a TC7660 transforming -5V to +5V
(or +5V to +10V, etc.). The only problem here is that the
internal clock and switch-drive section will not operate
until some positive voltage has been generated. An ini-
tial inefficient pump, as shown in Figure 5-7, could be
used to start this circuit up, after which it will bypass the
else the diode and resistor shown dotted in Figure 5-8
can be used to "force" the internal regulator on.
FIGURE 5-8:
Positive Voltage
Conversion.
+
C1
D1
+
C3
C4
C2
D2
+
VOUT =
1
2
3
4
8
7
6
5
TC7660
V+
(2 V+) - (2 VF)
VOUT
= -V+
VOUT = -V
-
+
1M
V - input
+
1
2
3
4
8
7
6
5
TC7660
10 F
C1
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PDF描述 |
|---|---|
| TC7660MJA | SWITCHED CAPACITOR REGULATOR, CDIP8 |
| TC7660COA | SWITCHED CAPACITOR REGULATOR, PDSO8 |
| TC7660EPA | SWITCHED CAPACITOR REGULATOR, PDIP8 |
| TC7660SEPA | SWITCHED CAPACITOR REGULATOR, 45 kHz SWITCHING FREQ-MAX, PDIP8 |
| TC7660SCOAG | SWITCHED CAPACITOR REGULATOR, 45 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7660EOATR | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:+5V To 【10V Voltage Converter |
| TC7660EPA | 功能描述:电荷泵 DC-DC Converter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| TC7660EV | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| TC7660H | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:HIGH FREQUENCY 7660 DC-TO-DC VOLTAGE CONVERTER |
| TC7660HCOA | 功能描述:电荷泵 High Frequency RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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