Maxim Integrated MAX718CSE Charge-Pump Voltage Inverter

The MAX718CSE from Maxim Integrated is a highly efficient, charge-pump voltage inverter that delivers a negative voltage from a positive input voltage. Designed to be a compact and versatile solution for a wide range of applications, this integrated circuit (IC) is ideal for scenarios where a negative supply is required for analog circuits, OLED displays, or as a gate drive for other high-side switches and transistors.

This voltage inverter operates with an input voltage range of +2.7V to +5.5V, making it suitable for portable devices powered by single-cell lithium-ion (Li+) batteries, as well as providing a convenient solution for products using standard 3.3V or 5V power supplies. The MAX718CSE is capable of delivering a steady and reliable output voltage that is the inverted equivalent of the input, with a typical output current of up to 30mA, depending on the input voltage and external capacitors used.

One of the key features of the MAX718CSE is its high frequency (up to 125kHz) switching operation, which allows for the use of small, low-cost capacitors that result in a compact overall footprint. This makes the device particularly suitable for space-constrained applications. Additionally, the IC incorporates thermal overload protection, ensuring reliable operation under varying conditions.

The MAX718CSE is available in a narrow 16-pin SO package, which is designed for surface-mount technology (SMT) and is compatible with standard manufacturing processes. This package type facilitates easy integration into a variety of electronic systems without the need for additional bulky external components.

Maxim Integrated's commitment to quality and reliability is evident in the MAX718CSE, making it a trusted choice for engineers and designers who require a negative voltage supply in their electronic designs. Whether it's for powering operational amplifiers in a sensor interface, driving LCD or OLED displays, or any other application necessitating a negative rail, the MAX718CSE offers a simple and effective solution.

For detailed specifications, application notes, and additional resources, designers are encouraged to consult the datasheet and Maxim Integrated's technical support for optimal integration of the MAX718CSE into their projects.