MAX17117ETJ+T

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Introduction

The MAX17117ETJ+T is a tiny, integrated power management IC (PMIC) designed to provide adjustable voltages from 3.3V to 7.5V in a very small surface mount package. It features a programmable internal regulator, an adjustable current limit, and an adjustable power-up sequence. The MAX17117ETJ+T is suitable for powering a variety of portable applications including LCD displays, cellular phones, and portable gaming devices.

Application Field

The MAX17117ETJ+T is designed to be a power management IC for a variety of applications. It can be used to provide a regulated and adjustable voltage supply to a variety of components, ranging from LCD displays and cell phones to portable gaming devices and other devices. As the device is designed for use in small packages, it is ideally suited for use in mobile devices where size and weight are a concern.

In addition, the MAX17117ETJ+T can be used to provide a simple, efficient power management solution for applications that require a higher output current than a standard linear regulator can provide. By using an integrated solution like the MAX17117ETJ+T, the need for external components such as resistors, diodes, or transistors is eliminated, helping to further reduce the overall circuit complexity and cost.

Working Principle

The MAX17117ETJ+T works by regulating the input voltage through an internal switching regulator. The regulator works by rapidly turning an internal switch on and off, allowing current to flow in one direction (from the input to the output) while preventing current from flowing in the other direction. By rapidly turning the switch on and off, the voltage regulating can be precision controlled, allowing the device to provide an output voltage that is accurate and stable over a wide range of input voltages and/or load conditions.

In addition to the voltage regulating function, the MAX17117ETJ+T also features an adjustable current limit and adjustable power-up sequence. The adjustable current limit allows the user to set the maximum current draw before the regulator will shut off, protecting the device from excessive current draw. The adjustable power-up sequence allows the user to set the desired order in which the device will power on each of its components, allowing for a controlled start-up procedure.

Conclusion

The MAX17117ETJ+T is a very useful power management IC designed to provide adjustable voltages from 3.3V to 7.5V in a very small package. It features a programmable internal regulator, an adjustable current limit, and an adjustable power-up sequence, making it ideal for a variety of applications. By integrating all of these features into one IC, the MAX17117ETJ+T provides a simple and cost-effective solution for many power management needs.

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