The MAX861ESA+ is a high-efficiency, low-power charge pump voltage inverter engineered by Maxim Integrated. This compact and versatile component is designed to provide a simple solution for generating a negative voltage from a positive voltage input. It is particularly suitable for applications requiring a small, easy-to-implement negative voltage source.

Key Features

• Input Voltage Range: The device operates over a wide input voltage range from +1.5V to +5.5V, making it suitable for a variety of low-voltage applications.
• High Output Current: Capable of delivering up to 200mA of output current, the MAX861ESA+ can easily support a broad range of applications.
• High Efficiency: With a typical operating efficiency of 96%, this inverter ensures minimal power loss and helps extend battery life in portable devices.
• No External Diode: Unlike many other charge pump inverters, the MAX861ESA+ does not require an external diode, simplifying the circuit design and reducing component count.
• Low Operating Current: The quiescent current is typically 120µA, which is ideal for battery-powered applications where power conservation is critical.
• Low Shutdown Current: The device features a shutdown mode that reduces the supply current to only 0.5µA, further conserving power when the inverter is not in use.

Applications

The MAX861ESA+ is an excellent choice for a variety of applications, including but not limited to:

• Portable battery-powered devices
• Data acquisition systems
• Operational amplifier power supplies
• Handheld medical equipment
• Interface power supplies

Package and Reliability

The device is offered in a space-saving 8-pin SOIC package, which is ideal for compact PCB layouts. Maxim Integrated's commitment to quality ensures that the MAX861ESA+ meets stringent reliability standards, providing a dependable solution for designers.