The MAX680ESA+T is a high-frequency, charge-pump voltage converter manufactured by Maxim Integrated. This versatile component can efficiently convert positive voltage to both positive and negative outputs, making it an ideal solution for applications that require a dual supply from a single positive input.

Key Features

• Wide Input Range: The device operates with an input voltage range from 1.8V to 5.5V, which accommodates a variety of power sources, including standard battery voltages and regulated 5V supplies.
• High Output Current: It can deliver up to 10mA with a typical voltage drop of only 0.45V, providing sufficient power for small-scale applications.
• Adjustable Output Voltage: The output voltage can be adjusted through external components, offering design flexibility.
• High Efficiency: The charge pump uses a switched-capacitor voltage doubler/inverter for a high-efficiency conversion, minimizing power loss.
• Low Quiescent Current: A quiescent current of just 10µA (typical) makes it suitable for battery-powered devices, as it helps in prolonging battery life.
• Frequency Operation: It operates at a 45kHz (typical) oscillator frequency, which allows for small capacitors, thus reducing the overall size of the power supply design.

Applications

The MAX680ESA+T is commonly used in a variety of applications that require a compact, efficient, and reliable voltage conversion solution. These include:

• Portable Devices
• Data Acquisition Systems
• Operational Amplifier Systems with Dual Supplies
• Interface Power Supplies

Package and Reliability

It is offered in a compact 8-pin SOIC package (ESA suffix), which is suitable for space-constrained applications. The device is also available in tape and reel (T suffix), facilitating automated manufacturing processes. Maxim Integrated ensures high reliability and performance, making the MAX680ESA+T a trusted choice for designers and engineers.