Maxim Integrated ICL7660EPA+ Voltage Converter

The ICL7660EPA+ is a highly efficient, monolithic, charge pump voltage converter manufactured by Maxim Integrated. This versatile integrated circuit (IC) is designed to provide a simple and reliable solution for small, battery-operated devices requiring a voltage inversion from a positive to a negative rail. It is particularly suitable for applications where an additional negative supply is needed, such as in operational amplifier systems, handheld devices, and portable instruments.

The device operates by using a switched capacitor network to double the voltage, divide the voltage, or invert the input voltage, which makes it a flexible choice for various design needs. The ICL7660EPA+ is capable of delivering an output current of up to 10mA with a voltage conversion efficiency of 99.9% at no load, and typically around 98% under full load conditions. This high efficiency ensures minimal power loss and heat generation, which is crucial for battery-powered applications.

Key features of the ICL7660EPA+ include an operating voltage range of 1.5V to 10V, which allows for compatibility with a wide array of power sources. Additionally, the IC offers a low power consumption with a typical quiescent current of 1.5µA, further extending battery life in portable applications. The ICL7660EPA+ also incorporates an oscillator frequency of 10kHz, which is set internally, reducing the need for external components and simplifying the design process.

The device is available in an 8-pin DIP (Dual In-line Package) and is specified for operation over the full industrial temperature range of -40°C to +85°C. This robust temperature range ensures reliable performance in challenging environmental conditions.

Overall, the ICL7660EPA+ from Maxim Integrated is a compact, efficient, and easy-to-use solution for generating a negative voltage rail in a variety of electronic applications. Its high efficiency, low power consumption, and broad operating voltage range make it an ideal choice for designers looking to optimize their power supply architecture.

For more detailed information, including pin configurations, application circuits, and performance graphs, please refer to the official datasheet provided by Maxim Integrated.