LM2664 Overview
The LM2664 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.8 V to 5.5 V to the corresponding negative voltage of −1.8 V to −5.5 V. The device 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.
LM2664 Key Features
- 1 Inverts Input Supply Voltage
- 6-Pin SOT-23 Package
- 12-Ω Typical Output Impedance
- 91% Typical Conversion Efficiency at 40 mA
- 1-µA Typical Shutdown Current
