LM2664 Switched Capacitor Voltage Converter | TIJ.co.jp

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Switched Capacitor Voltage Converter



The LM2664 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 LM2664 uses two low cost capacitors to provide up to 40 mA of output current.

The LM2664 operates at 160 kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 220 µA (operating efficiency greater than 91% with most loads) and 1 µA typical shutdown current, the LM2664 provides ideal performance for battery powered systems. The device is in SOT-23-6 package.


  • Inverts Input Supply Voltage
  • SOT23-6 Package
  • 12 Typical Output Impedance
  • 91% Typical Conversion Efficiency at 40 mA
  • 1µA Typical Shutdown Current


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Part number オーダー・オプション Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Operating temperature range (C) Type Rating Package Group
LM2664 ご注文 1.8     5.8     -5.8     -1.8     0.04     1     40     80     -40 to 85     Charge Pump     Catalog     SOT-23 | 6