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.

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
封装图纸 (1)
Document TitleDocument ID/SizeRevision
SOIC 8, 150 mils751BD (55.6kB)revo
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Charge Pump Voltage ConverterCAT660/D (136.0kB)26
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
CAT660EVA-GT3ActivePb-free Halide freeSOIC-8751BD1Tape and Reel3000$0.8
订购产品技术参数
ProductVin Typ (V)Vout Typ (V)Iout Typ (mA)ICC Max (µA)fOSC Typ (kHz)Shutdown Pin
CAT660EVA-GT33.0 to 5.5-Vin or 2Vin100300080No
Charge Pump Voltage Converter (136.0kB) CAT660
SOIC 8, 150 mils CAV93C86