GENERAL DESCRIPTION
The TC7660 is a pin-compatible replacement for the Industry standard TC7660 charge pump voltage converter. It converts a +1.5V to +10V input to a corresponding – 1.5V to -10V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI.
The on-board oscillator operates at a nominal frequency of 10kHz. Operation below 10kHz (for lower supply current applications) is possible by connecting an external capacitor from OSC to ground (with pin 1 open). The TC7660 is available in both 8-pin DIP and 8-pin SOIC packages in commercial and extended temperature ranges.

FEATURES
■ Converts +5V Logic Supply to ±5V System
■ Wide Input Voltage Range .................... 1.5V to 10V
■ Efficient Voltage Conversion ......................... 99.9%
■ Excellent Power Efficiency ............................... 98%
■ Low Power Supply ...............................80µA @ 5VIN
■ Low Cost and Easy to Use
    — Only Two External Capacitors Required
■ RS232 Negative Power Supply
■ Available in Small Outline (SO) Package
■ Improved ESD Protection ....................... Up to 3kV
■ No Dx Diode Required for High Voltage Operation