Maxim Integrated MAX845ESA+G55 Monolithic Charge-Pump Voltage Converter

The MAX845ESA+G55 from Maxim Integrated is a versatile and efficient monolithic charge-pump voltage converter designed to provide a reliable solution for voltage level conversion in a variety of electronic applications. This compact device is ideal for converting a positive voltage in the range of +4.5V to +5.5V to a corresponding negative voltage, making it an essential component for systems that require a dual power supply from a single positive supply source.

Encased in an 8-pin SOIC package, the MAX845ESA+G55 offers a simple and cost-effective way to generate a negative voltage without the need for inductors, thereby reducing the overall design complexity and saving on board space. The device is capable of delivering up to 25mA of output current with excellent power efficiency, making it suitable for portable and battery-powered devices where power conservation is crucial.

One of the key features of this charge-pump voltage converter is its high-frequency operation at 45kHz. This allows for the use of small, low-cost capacitors while minimizing output voltage ripple, ensuring a clean and stable negative voltage supply. Furthermore, the MAX845ESA+G55 includes built-in thermal overload protection, which safeguards the device and the system from damage due to excessive temperatures.

With its wide operating temperature range of -40°C to +85°C, the MAX845ESA+G55 is engineered to perform reliably in harsh environments, making it an excellent choice for industrial, automotive, and telecommunications applications. Its simple external circuitry requirements and ease of integration into existing designs also make it a popular choice among engineers and designers looking to streamline their power supply solutions.

Whether you're designing a new product or upgrading an existing one, the Maxim Integrated MAX845ESA+G55 charge-pump voltage converter is a robust and efficient choice that promises to deliver consistent performance and help you achieve a compact and effective design.