Maxim Integrated MAX7660EPA Voltage Converter

The MAX7660EPA from Maxim Integrated is a highly efficient, CMOS charge-pump voltage converter that offers a versatile solution for various electronic applications. This device is capable of inverting a positive voltage input to produce a corresponding negative voltage output, making it an ideal choice for systems that require a dual supply from a single positive source.

One of the key features of the MAX7660EPA is its ability to operate over a wide input voltage range of +1.5V to +10V, which makes it suitable for battery-operated devices as well as for higher voltage applications. The output voltage is inverted with a 1:1 ratio, meaning that the magnitude of the output voltage is equal to the input voltage, but with an opposite polarity.

The device is designed to deliver a high output current of up to 45mA with a typical operating frequency of 10kHz. This high-frequency operation allows for the use of small external capacitors, reducing the overall size and cost of the power supply design. Additionally, the MAX7660EPA features a low quiescent current of only 120µA, which helps to maximize battery life in portable applications.

For enhanced flexibility, the MAX7660EPA includes a frequency control (FC) pin that allows users to lower the operating frequency, thus enabling trade-offs between efficiency and external component size. The device is also equipped with an on-chip oscillator, a control circuit, and a power MOSFET switch, which simplifies the design process by reducing the number of external components required.

Encased in an 8-pin DIP package, the MAX7660EPA is designed for easy implementation into a variety of circuit layouts. Its robust design ensures reliable operation over the industrial temperature range of -40°C to +85°C, making it suitable for harsh environments.

Whether you are designing portable medical equipment, battery-powered devices, or any other application that requires a compact and efficient negative voltage supply, the MAX7660EPA provides a reliable and cost-effective solution that is easy to integrate into your design.