General Description
The TCM680 is a dual charge pump, voltage converter that produces 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
• 99% Voltage Conversion Efficiency
• 85% Power Conversion Efficiency
• Input Voltage Range:
   - +2.0V to +5.5V
• Only 4 External Capacitors Required
• 8-Pin SOIC Package

Applications
• ±10V From +5V Logic Supply
• ±6V From a 3V Lithium Cell
• Handheld Instruments
• Portable Cellular Phones
• LCD Display Bias Generator
• Panel Meters
• Operational Amplifier Power Supplies