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LM2664 Datasheet Switched Capacitor Voltage Converter

Manufacturer: National Semiconductor (now Texas Instruments)

General Description

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.

Overview

LM2664 Switched Capacitor Voltage Converter November 1999 LM2664 Switched Capacitor Voltage.

Key Features

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