CAT660: Charge Pump Voltage Converter
The CAT660 is a charge-pump voltage converter. It will invert a 1.5V to 5.5V input to a -1.5V to -5.5V output. Only two external capacitors are needed. With a guaranteed 100mA output current capability, the CAT660 can replace a switching regulator and its inductor. Lower EMI is achieved due to the absence of an inductor. In addition, the CAT660 can double a voltage supplied from a battery or power supply. Inputs from 2.5V to 5.5V will yield a doubled, 5V to 11V output voltage. A Frequency Control pin (BOOST/FC) is provided to select either a high (80kHz) or low (10kHz) internal oscillator frequency, thus allowing quiescent current vs. capacitor size trade-offs to be made. The 80kHz frequency is selected when the FC pin is connected to V+. The operating frequency can also be adjusted with an external capacitor at the OSC pin or by driving OSC with an external clock. 8-pin SOIC package is available in the industrial temperature range. The CAT660 replaces the MAX660 and the LTC®660. In addition, the CAT660 is pin compatible with the 7660/1044, offering an easy upgrade for applications with 100mA loads.
技术特性
- Replaces MAX660 and LTC®660
- Converts V+ to V- or V+ to 2V+
- Low output resistance, 4Ω typical
- High power efficiency
- Selectable charge pump frequency
- 10kHz or 80kHz
- Optimize capacitor size
- Low quiescent current
- Pin-compatible, high-current alternative to 7660/1044
- Industrial temperature range
- Available in 8-pin SOIC package
- Lead-free, halogen-free package option
|
应用
- Negative voltage generator
- Voltage doubler
- Voltage splitter
- Low EMI power source
- GaAs FET biasing
- Lithium battery power supply
- Instrumentation
- LCD contrast bias
- Cellular phones, pagers
封装图 PACKAGE DIMENSIONS
|
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| CAT660EVA-GT3 |
Active |
|
Charge Pump Voltage Converter |
MSOP-8 |
846AD |
1 |
Tape and Reel |
3000 |
$1.0666 |
数据资料DataSheet下载
