MAX8893BEWV+T

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Power management is an essential component of any electronics system, and specialized power management units, or PMICs offer an efficient and economic solution to an otherwise complex process. The MAX8893BEWV+T PMIC is an integrated hard-rail switcher for low-power DC/DC conversion, suitable for use in a wide variety of applications thanks to a wide input voltage range and high efficiency. In this article, we will look at the MAX8893BEWV+T application fields, as well as the device\'s working principles.

Application Fields

The MAX8893BEWV+T is suitable for a wide range of applications, particularly those requiring compact, efficient, and low-power DC/DC converters. These applications include the following:

• Consumer applications, such as handheld and mobile devices.
• Industrial and automotive applications, such as industrial robots and automotive infotainment systems.
• Computing and communications applications, such as laptops, servers, and base stations.
• Network and storage applications, such as switching and routing hubs.

The MAX8893BEWV+T is also suitable for point-of-load (POL) power architectures, providing high efficiency across a wide operating temperature range.

Working Principles

The MAX8893BEWV+T is an integrated hard-rail switcher featuring an innovative design to minimize power losses while operating at high efficiency. This integrated PMIC is capable of providing a regulated output voltage from +1.1V to +1.8V, and accepting input voltages from 3.2V to 12.6V.

The integrated high-efficiency switching regulator of the MAX8893BEWV+T is designed around a hysteretic self-regulated architecture, wherein the output voltage is maintained by monitoring and comparing the internal feedback voltage to a reference voltage. When the feedback voltage exceeds the reference voltage, the switcher is disabled, and the output voltage decreases. Conversely, when the feedback voltage is lower than the reference voltage, the switcher is enabled, increasing the output voltage until the reference voltage is reached. This architecture has been developed to reduce the current consumption during steady-state operation, enabling longer battery life in mobile devices.

The MAX8893BEWV+T also incorporates an integrated power switch, enabling maximum switching frequencies of up to 1MHz and a wide range of output inductors. This combination of features results in a smaller bill-of-materials (BOM) than other PMICs, aiding the design of more compact, space-saving products.

Conclusion

The MAX8893BEWV+T integrated hard-rail switcher offers superior power conversion efficiency and reduced BOM costs in a wide range of applications. This PMIC is capable of accepting input voltages from 3.2V to 12.6V, and providing an output voltage range from +1.1V to +1.8V. Moreover, its innovative hysteretic self-regulated architecture enables increased system efficiency, maximizing battery life for numerous consumer, industrial, automotive, computing, communications, and network and storage applications.

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