The MAX680CSA from Maxim Integrated is a versatile CMOS charge-pump voltage converter that is designed to be a part of a wide range of electronic applications. This high-efficiency device is capable of converting a positive voltage in the range of 1.5V to 5.5V to the corresponding negative voltage, thereby making it an ideal component for systems that require a dual power supply from a single power source.

Key Features

• Wide Input Voltage Range: Operates with input voltages from 1.5V to 5.5V, making it suitable for battery-operated devices as well as standard 5V digital systems.
• High Power Efficiency: Uses a switched-capacitor voltage converter technique, which provides high power efficiency compared to linear regulators.
• Flexible Voltage Conversion: Capable of inverting the input voltage (V_IN to -V_OUT) or doubling it (V_IN to 2V_OUT), providing design versatility.
• Low Quiescent Current: Exhibits a low quiescent current, making it ideal for power-sensitive applications.
• Minimal External Components: Requires only two external capacitors for the voltage doubling configuration and four for the voltage inverting configuration, simplifying design and reducing board space.
• Robust Packaging: Offered in an 8-pin SOIC package, which is suitable for automated assembly processes and space-constrained applications.

Applications

The MAX680CSA is a highly adaptable component that can be utilized in a range of applications, including but not limited to:

• Portable battery-powered equipment
• Data acquisition systems
• Operational amplifier power supplies
• Memory backup systems
• Handheld instrumentation

Conclusion

With its ability to provide a dual supply from a single source and its high efficiency, the Maxim Integrated MAX680CSA is a strong choice for designers looking to optimize their power management solutions. Its ease of integration and minimal external component requirements make it a practical and cost-effective option for a multitude of electronic products.