Maxim Integrated ICL7660ESA+ Voltage Converter

The ICL7660ESA+ from Maxim Integrated is a highly efficient, monolithic, CMOS voltage converter that delivers a reliable performance for a wide range of applications. This versatile component is designed to easily convert a positive voltage in the range of 1.5V to 10V to the corresponding negative voltage with minimal external components, making it an ideal solution for battery-powered devices and portable applications.

The device features an onboard oscillator, two control MOSFETs, and a high-voltage inverter, which work together to provide a simple and efficient charge pump voltage conversion. The ICL7660ESA+ can be used in applications that require a negative supply voltage from a single positive input, such as operational amplifier systems, handheld devices, and instrumentation.

Key features of the ICL7660ESA+ include:

• Simple Conversion of +1.5V to +10V Input to Corresponding Negative Output
• Guaranteed Minimum Power Efficiency of 96%
• Low Power Consumption: Typically 1.5mA
• No External Diode Required for High-Voltage Operation
• Convenient 8-Pin SOIC Package
• Stable Operation with Capacitive Loads up to 10uF
• Frequency Operation Typically at 10kHz

With its high power efficiency and low quiescent current, the ICL7660ESA+ is particularly suited for use in portable equipment where extending battery life is crucial. The device also offers a frequency operation typically at 10kHz, which allows the use of small capacitors with lower voltage coefficients, thus minimizing the size and cost of the entire power supply.

The ICL7660ESA+ is available in an 8-pin SOIC package, which is compact and suitable for space-constrained applications. This voltage converter is designed to be user-friendly and requires only two external capacitors to complete the circuit, making it an excellent choice for designers looking for an easy-to-implement solution for generating a negative supply from a positive input.

Whether you're designing portable medical devices, battery-operated equipment, or any other application that requires an efficient and reliable negative voltage supply, the ICL7660ESA+ from Maxim Integrated is a solid choice that combines performance, simplicity, and versatility.