The MAX889RESA is a high-efficiency, low-power, monolithic charge-pump voltage inverter from Maxim Integrated. This compact and versatile component is designed to convert a positive voltage in the range of +1.5V to +5.5V to the corresponding negative voltage, making it an ideal choice for a wide array of applications where a negative supply is required.

Key Features

• Input Voltage Range: Operates from a +1.5V to +5.5V supply voltage, providing design flexibility across various power sources.
• High Power Efficiency: Utilizes a regulated charge pump to deliver a high efficiency of up to 99% under certain conditions, ensuring minimal power loss during voltage conversion.
• Low Quiescent Current: Features a low quiescent current of 120µA (typical), which is beneficial for battery-powered devices by prolonging battery life.
• Output Current Capability: Capable of delivering up to 60mA of output current, suitable for powering small to medium-sized loads.
• No External Diodes Required: The integrated circuit design eliminates the need for external diodes, simplifying the circuit and saving board space.
• Small Package: Available in a space-saving 8-pin SO package, ideal for applications where board space is at a premium.

Applications

The MAX889RESA can be used in a variety of applications, including but not limited to:

• Portable battery-powered equipment
• Cellular phones
• Medical devices
• Operational amplifier power supplies
• Data acquisition systems
• Handheld instrumentation

Reliability and Quality

Maxim Integrated is known for its commitment to quality and reliability, and the MAX889RESA is no exception. It is designed to meet the rigorous demands of modern electronic devices, ensuring stable performance and a long operational lifespan. As a result, designers and engineers can confidently integrate this voltage inverter into their systems, knowing it will deliver consistent negative voltage conversion with high efficiency and reliability.