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參數資料
| 型號： | LM828 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Switched Capacitor Voltage Converter |
| 中文描述： | 開關電容電壓轉換器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 186K |
| 代理商： | LM828 |
LM828
Switched Capacitor Voltage Converter
General Description
The LM828 CMOS charge-pump voltage converter inverts a
positive voltage in the range of +1.8V to +5.5V to the corre-
sponding negative voltage of 1.8V to 5.5V. The LM828
uses two low cost capacitors to provide up to 25 mA of out-
put current.
The LM828 operates at 12 kHz switching frequency to re-
duce output resistance and voltage ripple. With an operating
current of only 40 μA (operating efficiency greater than 96%
with most loads), the LM828 provides ideal performance for
battery powered systems. The device is in a tiny SOT-23-5
package.
Features
n
Inverts Input Supply Voltage
n
SOT-23-5 Package
n
20
Typical Output Impedance
n
97% Typical Conversion Efficiency at 5 mA
Applications
n
Cellular Phones
n
Pagers
n
PDAs
n
Operational Amplifier Power Supplies
n
Interface Power Supplies
n
Handheld Instruments
Basic Application Circuits
Voltage Inverter
DS100137-1
+5V to 10V Converter
DS100137-2
March 1999
L
1999 National Semiconductor Corporation
DS100137
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM828M5 | 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LM828M5/NOPB | 功能描述:電荷泵 SWITCHED CAPACITOR VOLTAGE CONVERTER RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LM828M5/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter (DC-DC) IC |
| LM828M5-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM828 Switched Capacitor Voltage Converter |
| LM828M5X | 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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