MAX8819AETI+

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The MAX8819AETI+ from Maxim Integrated is an advanced power management integrated circuit (PMIC) with several specialized functions and a wide range of application fields. The MAX8819AETI+ provides intelligent power control to a large number of devices, both for steady-state and dynamic power requirements. It offers several integrated features to optimize system power management, reduce power consumption, and increase performance and reliability. In this article we\'ll take a look at the application fields and working principles of the MAX8819AETI+.

Application Fields

The MAX8819AETI+ is well-suited for a wide range of applications, including notebook and tablet PC, PC peripherals, and gaming and consumer electronics. Its deep sleep mode helps extend battery life in portable devices, and its power-saving off-state draws less than 500uA. The device also comes with an integrated regulator selection circuit which eliminates manual PMIC selection. Its over-temperature and current-sense features protect the device from overloading.

Power Regulation

The MAX8819AETI+ provides precision power regulation to supply a stable and clean power to sensitive electronics. Its wide input voltage range and power range allows the device to be used in a variety of applications, including notebooks where the voltage inputs range from 9V to 19.2V. The device is capable of providing several power rails and utilizes external MOSFETs for supply terminations, minimizing heat dissipation and maximizing efficiency. The MAX8819AETI+ also integrates over-temperature and current-sense protection to protect the device from over-current or over-temperature conditions.

Speed and Efficiency

The MAX8819AETI+ implements a synchronous buck regulator for high efficiency operation and performance. The device can provide up to 2A, or up to 4A with external MOSFETs. It also includes a power management block with a range of build-in features such as power-down sequencing, power-up sequencing, and over-voltage protection. The device is designed to switch at a frequency of up to 1 MHz, allowing for fast response which reduces heat dissipation, and also improving operating efficiency.

Other Features

The MAX8819AETI+ also has several other features which increase its performance and make it ideal for modern applications. These features include a watchdog timer to monitor system health and an adjustable battery charging rate of up to 1.7A. It also features reverse current protection to prevent back flow from the system to the battery. Finally, the device includes thermal protection to ensure that it does not overheat, as well as under-voltage lockout and load switch protection.

Conclusion

The MAX8819AETI+ is an advanced PMIC from Maxim Integrated which offers an impressive range of features and functions. It is suitable for a wide range of applications including notebook and tablet PC, PC peripherals, and gaming and consumer electronics. The MAX8819AETI+ provides precision power regulation and a wide range of power supply protection features to maintain superior performance and reliability. It also features a wide input voltage range, as well as fast response and high efficiency operation.

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