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TI产品 - LM828介绍

LM828 - Switched Capacitor Voltage Converter

LM828是TI德州仪器公司的一款电荷泵(无感应器)产品,LM828是Switched Capacitor Voltage Converter,本站介绍了LM828的封装应用图解、特点和优点、功能等,并给出了与LM828相关的TI元器件型号供参考。

LM828 - Switched Capacitor Voltage Converter - 电荷泵(无感应器) - DC/DC开关稳压器 - 德州仪器

产品描述

The LM828 CMOS charge-pump voltage converter inverts a positive voltage in the range of +1.8V to +5.5V to the corresponding negative voltage of −1.8V to −5.5V. The LM828 uses two low cost capacitors to provide up to 25 mA of output current.

The LM828 operates at 12 kHz switching frequency to reduce output resistance and voltage ripple. With an operating current of only 40 µA (operating efficiency greater than 96% with most loads), the LM828 provides ideal performance for battery powered systems. The device is in a tiny SOT-23 package.

产品特性

  • Inverts Input Supply Voltage
  • SOT-23 Package
  • 20Ω Typical Output Impedance
  • 97% Typical Conversion Efficiency at 5 mA

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