ACT8934QJ333-T

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Power management integrated circuits (PMICs) are indispensable components in a wide range of electronic systems. Recently, the ACT8934QJ333-T is becoming increasingly popular and is widely used in various applications, such as data centers, automotive, industrial, IoT and others. This article will focus on the application field and the working principle of the ACT8934QJ333-T.

Application Field of ACT8934QJ333-T

The ACT8934QJ333-T is a PMIC specially designed for 12V and 5V dual rail systems. It is powered by both a synchronous rectifier buck regulator and a high efficiency, high frequency buck converter that operates from 4.5V to 12V, offering great flexibility for applications. With its high efficiency up to 90%, this PMIC can provide an output voltage up to 15A. It is suitable for multiple platform applications, including cloud servers, automotive systems, industrial systems, and IoT applications.

In addition to the 12V and 5V rails, it also has other voltage outputs including 3.3V, 1.8V, and 1.2V, each with a maximum output current of up to 30A. Furthermore, it has a wide input range of 4.5V to 12V, which makes the choice of power supply sources more flexible and cost-effective in terms of implementation. This makes it an ideal power management solution for different platforms.

Working Principle of ACT8934QJ333-T

The ACT8934QJ333-T is based on a highly integrated, high-efficiency, synchronous-rectifier buck regulator and a single-shot circuit. This PMIC works by automatically switching between two power sources - a 12V source and a 5V source - with a high efficiency, in order to reduce system power loss. It can maintain high efficiency over a wide range of input to output voltage, leading to reduced power dissipation, higher power efficiency and better system performance.

The synchronous rectifier buck regulator uses a low-side MOSFET and an integrated low-side driver to achieve a high conversion efficiency with low pressure drops. The single-shot circuit can be used to reset, power up, and power down the PMIC. The ACT8934QJ333-T also has advanced features such as power fail alert and thermal overload protection, as well as a power-good signal and adjustable switching frequency.

In conclusion, the ACT8934QJ333-T is a powerful and cost-effective PMIC that is suitable for a range of applications. With its wide input voltage range and multiple output voltage options, it is an ideal power management solution for various applications, including cloud servers, automotive systems, industrial systems, and IoT applications.

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