The TC7660EOA is a versatile charge pump voltage converter manufactured by Microchip Technology, designed to efficiently convert a positive voltage in the range of 1.5V to 10V to a corresponding negative voltage of the same magnitude. This high-performance device is an ideal solution for battery-powered applications due to its low power consumption and compact SOP-8 package design.

Key Features

• Voltage Conversion: Converts a positive voltage into a negative voltage with a simple two-capacitor circuit, eliminating the need for inductors and their associated cost and size.
• Efficiency: Features a high conversion efficiency, making it suitable for portable devices where power conservation is critical.
• No External Diode: Unlike many traditional charge pumps, the TC7660EOA does not require an external diode, simplifying design and reducing component count.
• Low Power Operation: With a typical quiescent current of only 110 µA, the TC7660EOA is optimized for battery-powered applications where extending battery life is essential.
• Wide Voltage Range: Operates over a wide input voltage range, making it flexible for various applications.
• Oscillator Frequency: Features an onboard oscillator with a frequency of 10kHz, which can be increased to 70kHz by connecting an external capacitor to the OSC pin.

Applications

The TC7660EOA is suitable for a broad range of applications, including but not limited to:

• Portable devices
• Operational amplifier power supplies
• Memory backup supplies
• Data acquisition systems
• Hand-held instruments

Conclusion

The Microchip Technology TC7660EOA stands out as a reliable and efficient solution for generating a negative voltage rail in space-conscious and power-sensitive applications. Its ease of use, coupled with Microchip's reputation for quality, makes it a go-to choice for designers looking to implement a charge pump DC-DC converter in their designs.