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ICL7660：开关电容电压转换器

20mA电荷泵，采用工业标准引脚排列

The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, double, divide, or multiply a positive input voltage. They are pin compatible with the industry-standard ICL7660 and LTC1044. Operation is guaranteed from 1.5V to 10V with no external diode over the full temperature range. They deliver 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency above the audio band and reduces external capacitor size requirements. The MAX1044/ICL7660 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. For applications requiring more power, the MAX660 delivers up to 100mA with a voltage drop of less than 0.65V.

关键特性 Miniature µMAX Package 1.5V to 10.0V Operating Supply Voltage Range 98% Typical Power-Conversion Efficiency Invert, Double, Divide, or Multiply Input Voltages BOOST Pin Increases Switching Frequencies (MAX1044) No-Load Supply Current: 200µA Max at 5V No External Diode Required for Higher-Voltage Operation

ICL7660、MAX1044：典型工作电路 应用 从+5V逻辑电源产生-5V电源 数据采集 EIA/TIA-232E和EIA/TIA-562电源 手持式仪表(PDA、掌上电脑) 运算放大器电源 面板表 个人通信设备 便携式电话

数据手册DataSheet

关键参数

技术资料

• DC-DC Conversion Without Inductors
• Lower Operating Frequency Improves ICL7660 Voltage-Conversion Efficiency

质量和环境数据

• ICL7660.pdf

相关产品

• MAX828：开关电容电压反相器

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