ICL7662CPA+ Datasheet PDF - Maxim Integrated

The ICL7662CPA+ is a CMOS voltage converter in 8 pin DIP package. This converter is monolithic charge pump voltage inverter that will convert a positive voltage in range of +4.5V to +20V to corresponding negative voltage of -4.5V to -20V. The device provides performance far superior to previous implementations of charge pump voltage inverters by combining low quiescent current with high efficiency. It has an oscillator, control circuitry and 4 power MOS switches on-chip with only required external components being two low cost capacitors. It is used in inexpensive negative supplies, data acquisition systems, supply splitter, Vout = Vs/2, RS-232 power supplies and up to -20V for op amps and other linear circuits.

● Supply voltage of +4.5V to +20V to -4.5V to -20V output

● Operating temperature range from 0°C to +70°C

● Cascade voltage multiplication (Vout = n x V⁺)

● 99.9% typical open circuit conversion efficiency

● Requires only 2 external capacitors

● Pin compatible with ICL7660

● Supply current of 20µA at TA = +25°C (V+ = 5V)

● Output source resistance of 125ohm at TA = +25°C (V+ = 5V)

● Oscillator frequency is 10KHz