The MAX8722EEG from Maxim Integrated is a high-performance, TFT-LCD power supply that is designed to meet the stringent requirements of display panels in portable and compact devices. This integrated circuit is tailored to provide a reliable and efficient power solution for driving the source and gate in thin-film transistor liquid-crystal displays (TFT-LCDs).

Key Features

• Multiple Output Voltages: The MAX8722EEG is capable of generating multiple output voltages required for TFT-LCD panels, including V<sub>GH (positive gate supply), V<sub>GL (negative gate supply), and V<sub>COM (common voltage).
• High Efficiency: Designed for efficiency, it minimizes power consumption, which is crucial for battery-powered devices, extending their operational life.
• Integrated Boost Converter: The device includes an integrated boost converter with a 1.2MHz fixed-frequency operation to reduce the size of external components.
• Linear Regulators: It also features linear regulators for stable V<sub>COM supply, with excellent regulation and low noise characteristics.
• Thermal Protection: The MAX8722EEG is equipped with thermal protection features to safeguard the device from overheating, ensuring long-term reliability.

Applications

The MAX8722EEG is suitable for a wide range of applications, particularly in devices where display quality and power efficiency are paramount. These include:

• Notebook Computers
• Portable DVD Players
• Car Navigation Systems
• Portable Media Players

Technical Specifications

The MAX8722EEG operates over a wide input voltage range and is available in a compact 24-pin QSOP package. It features a high level of integration, which reduces the need for external components and simplifies the design process for engineers.

Conclusion

Maxim Integrated's MAX8722EEG is a versatile and efficient solution for powering TFT-LCDs, offering a blend of performance, integration, and protection features that make it an ideal choice for manufacturers seeking to enhance the battery life and display quality of their portable devices.