Renesas ICL7660A CMOS DC/DC Adjustable Voltage Converter, 1.5-12V In, -12 to -1

The Renesas ICL7660A is a sophisticated CMOS voltage converter, designed for efficient and straightforward power management solutions. This monolithic CMOS power supply circuit excels at converting a positive input voltage into a complementary negative output. Specifically, the ICL7660A can handle an input range from +1.5V to +12.0V, delivering a corresponding negative output from -1.5V to -12.0V. This makes it an invaluable component for generating bipolar (±) power rails from a single supply, such as easily converting a standard +5V logic supply into ±5V.

A key advantage of this device is its exceptional simplicity. It requires only two non-critical external capacitors to perform its charge pump and charge reservoir functions, eliminating the need for complex inductor-based circuits. The ICL7660A also offers impressive efficiency, with a typical open-circuit voltage conversion efficiency of 99.9% and a typical power efficiency of 98%. Its versatility extends beyond simple inversion; it can be configured as a voltage doubler to generate output voltages up to +18.6V from a +10V input.

Key Features & Specifications

• High Efficiency: Delivers typical power efficiency of 98% with 99.9% open-circuit voltage conversion.
• Simple Implementation: Requires only two external, non-critical passive components for operation.
• Integrated Design: No external diodes are needed across the full operating temperature and voltage range, simplifying the board design.
• Flexible Operation: Functions as an inverting charge pump or a voltage doubler.
• Reliable Performance: Features a maximum output current of 20mA and is supplied in a compact surface-mount NSOIC-8 package.
• Broad Compatibility: Part of the proven ICL7660S and ICL7660A product ranges, trusted for power management applications.

Important Handling Note: This is an ESD-sensitive device. Proper electrostatic