ICL7660S CMOS Super Voltage Converter

The ICL7660S is a high-performance CMOS super voltage converter IC designed to perform voltage inversion, doubling, and splitting functions with minimal external components. An enhanced version of the classic ICL7660, the “S” variant operates at higher frequencies and supports a wider supply voltage range, making it a more capable and flexible solution for modern circuit designs.

Widely used in portable instruments, op-amp biasing circuits, LCD contrast control, and mixed-signal systems, this IC allows designers to generate a negative voltage rail directly from a single positive supply — eliminating the need for a separate negative power source. It requires only two external capacitors to function, keeping the overall circuit footprint small and cost-effective.

Compatible with a broad range of microcontroller and analog circuit platforms, the ICL7660S is an indispensable tool for electronics hobbyists, students, and engineers working on battery-powered and space-constrained designs.

Specification:

• Part Number : ICL7660S
• Type : CMOS Voltage Converter
• Supply Voltage : 1.5V to 10V
• Output Function : Voltage Inversion / Doubling
• Operating Frequency : Up to 10kHz (internal oscillator)
• Quiescent Current : 170µA (typical)
• Output Voltage Efficiency : Up to 99.9%
• External Components : 2 Capacitors
• Package : 8-Pin DIP
• Operating Temperature : -40°C to +85°C