GENERAL DESCRIPTION
The TCM680 is a dual charge pump voltage converter that develops output voltages of +2VIN and – 2VIN from a single input voltage of +2.0V to +5.5V. Common applications include ±10V from a single +5V logic supply, and ±6V from a +3V lithium battery.
FEATURES
â– 99% Voltage Conversion Efficiency
â– 85% Power Conversion Efficiency
â– Wide Voltage Range .........................+2.0V to +5.5V
â– Only 4 External Capacitors Required
â– Space Saving 8-Pin SOIC Design
APPLICATIONS
■±10V From +5V Logic Supply
■±6V From a 3V Lithium Cell
â– Handheld Instruments
â– Portable Cellular Phones
â– LCD Display Bias Generator
â– Panel Meters
â– Operational Amplifier Power Supplies