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參數(shù)資料
| 型號： | LM2663 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Switched Capacitor Voltage Converter |
| 中文描述： | 開關(guān)電容電壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 282K |
| 代理商： | LM2663 |
Other Applications
(Continued)
REGULATING V
out
It is possible to regulate the output of the LM2662/LM2663 by use of a low dropout regulator (such as LP2986). The whole con-
verter is depicted in Figure 8 This converter can give a regulated output from 1.5V to 5.5V by choosing the proper resistor ratio:
where, V
ref
= 1.23V
The error flag on pin 7 of the LP2986 goes low when the regulated output at pin 5 drops by about 5% below nominal. The LP2986
can be shutdown by taking pin 8 low. The less than 1 μA quiescent current in the shutdown mode is favorable for battery powered
applications.
DS100003-26
FIGURE 6. Generating 3V
in
from +V
in
DS100003-27
FIGURE 7. Generating +3V
in
from +V
in
DS100003-28
FIGURE 8. Combining LM2662/LM2663 with LP2986 to Make a Negative Adjustable Regulator
www.national.com
10
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2663M | Switched Capacitor Voltage Converter |
| LM2670 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-3.3 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-5.0 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-ADJ | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2663M | 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 |
| LM2663M/NOPB | 功能描述:電荷泵 SWITCHED CAPACITOR VLTG 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 |
| LM2663M/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter (DC-DC) IC |
| LM2663MX | 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 |
| LM2663MX/NOPB | 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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