- 您现在的位置：买卖IC网 > PDF目录98000 > LM2660MMX/NOPB (NATIONAL SEMICONDUCTOR CORP) SWITCHED CAPACITOR CONVERTER, 40 kHz SWITCHING FREQ-MAX, PDSO8 PDF资料下载
参数资料
| 型号： | LM2660MMX/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 40 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | MINI, SO-8 |
| 文件页数： | 13/13页 |
| 文件大小： | 358K |
| 代理商： | LM2660MMX/NOPB |
Other Applications (Continued)
CASCADING DEVICES
Cascading the LM2660s (or LM2661s) is an easy way to
produce a greater negative voltage (as shown in Figure 5). If
n is the integer representing the number of devices cas-
caded, the unloaded output voltage V
out is (nVin). The
effective output resistance is equal to the weighted sum of
each individual device:
A three-stage cascade circuit shown in Figure 6 generates
3V
in, from Vin.
Cascading is also possible when devices are operating in
doubling mode. In Figure 7, two devices are cascaded to
generate 3V
in.
generating +15V or 15V from a +5V input.
Note that, the number of n is practically limited since the
increasing of n significantly reduces the efficiency and in-
creases the output resistance and output voltage ripple.
01291123
FIGURE 5. Increasing Output Voltage by Cascading Devices
01291124
FIGURE 6. Generating 3V
in from +Vin
LM2660/LM2661
www.national.com
9
相关PDF资料 |
PDF描述 |
|---|---|
| LM2661MM/NOPB | SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, PDSO8 |
| LM2661MMX/NOPB | SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, PDSO8 |
| LM2661MX/NOPB | SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, PDSO8 |
| LM2664MDC | SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, UUC |
| LM2704MFX-ADJ/NOPB | 0.62 A SWITCHING REGULATOR, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2660MX | 功能描述:电荷泵 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 |
| LM2660MX/NOPB | 功能描述:电荷泵 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 |
| LM2661 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Switched Capacitor Voltage Converter |
| LM2661/3/4EVAL | 功能描述:电源管理IC开发工具 LM2661/3/4 EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LM2661/3/4EVAL/NOPB | 功能描述:电源管理IC开发工具 LM2661/3/4 EVAL BRD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
发布紧急采购，3分钟左右您将得到回复。