The ILC6660 monolithic, charge-pump voltage inverter converts a +1.5V to +5.5V input to a corresponding -1.5V to -5.5V output. Using only two low-cost capacitors, the charge pump's 100mA output replaces switching regulators, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of its load-current range combined with a typical operating current of only 120A provides ideal performance for both battery-powered and board-level voltage conversion applications. The ILC6660 can also double or split the output voltage of an input powered supply or battery, providing +9.5V or +2.3V at 100mA from a +5V input. A frequency control (FC) pin selects either 5kHz typ or 50kHz typ (30kHz min) operation to optimize capacitor size and quiescent current. The Oscillator frequency can also be driven with an external clock. The ILC6660 is available in both 8-pin DIP and small-outline packages in commercial and extended temperature ranges.