《ICL7660MAX1044CMOS电源电压变换器》.pdf

19-4667; Rev 1; 7/94 Switched-Capacitor Voltage Converters _______________General Description ____________________________Features M The MAX1044 and ICL7660 are monolithic, CMOS Miniature µMAX Package A X switched-capacitor voltage converters that invert, dou- 1.5V to 10.0V Operating Supply Voltage Range ble, divide, or multiply a positive input voltage. They are pin compatible with the industry-standard ICL7660 and 98% Typical Power-Conversion Efficiency 1 LTC1044. Operation is guaranteed from 1.5V to 10V with Invert, Double, Divide, or Multiply Input Voltages 0 no external diode over the full temperature range. They BOOST Pin Increases Switching Frequencies 4 4 deliver 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency (MAX1044) / above the audio band and reduces external capacitor No-Load Supply Current: 200µA Max at 5V I size requirements. No External Diode Required for Higher-Voltage C The MAX1044/ICL7660 combine low quiescent current Operation L and high effi