Product Overview: MAX845ESA-T from Maxim Integrated

The MAX845ESA-T is a monolithic, CMOS charge-pump voltage inverter from Maxim Integrated, designed to deliver a high-efficiency power solution for applications that require a negative voltage rail. This compact, easy-to-use component is an ideal choice for designers looking to generate a negative voltage from a positive voltage input in a space-constrained environment.

Key Features:

• High Power Efficiency: The MAX845ESA-T operates with a high power efficiency, making it suitable for battery-powered devices where power conservation is critical.
• Low Voltage Operation: With an ability to operate down to 1.25V, this inverter is perfect for low-voltage applications.
• Minimal External Components: This device requires only two external capacitors to create the negative voltage, simplifying design and reducing board space.
• High Output Current: It can deliver up to 25mA of output current, making it suitable for a variety of applications.
• Low Quiescent Current: The MAX845ESA-T features a low quiescent current, further enhancing its suitability for portable applications.

Applications:

The versatility of the MAX845ESA-T allows it to be used in a wide range of applications, including but not limited to:

• Portable devices
• Operational amplifier power supplies
• Data acquisition systems
• Handheld instrumentation
• Medical devices
• Smart cards

Product Specifications:

The MAX845ESA-T comes in a compact 8-pin SOIC package, which is easy to integrate into a variety of circuit designs. It has a wide input voltage range from 1.25V to 5.5V, allowing it to be used with most standard logic levels. Furthermore, its fixed oscillator frequency at 12kHz minimizes noise in sensitive applications.

Quality and Reliability:

Maxim Integrated is known for its commitment to quality and reliability, and the MAX845ESA-T is no exception. It is designed to meet the stringent requirements of industrial and commercial applications, ensuring a reliable performance over its entire operating temperature range of -40°C to +85°C.

In summary, the MAX845ESA-T from Maxim Integrated is a versatile, efficient, and reliable solution for generating a negative voltage rail in space-constrained applications. Its ease of use and low component count make it an excellent choice for designers looking to streamline their power supply design.