ACT8891Q4I133-T

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The ACT8891Q4I133-T is a power management integrated circuit (PMIC) which is specialized for demanding and customers requiring low output noise and impedance. Backed by the winning combination of ACT’s total system power management and proven power stages, the ACT8891Q4I133-T is a powerful and reliable solution for managing power distribution and consumption. This PMIC can support systems from 24V and up to 48V and is also suitable for a wide variety of applications, from automotive, telecom, industrial, and consumer.

The ACT8891Q4I133-T integrates four synchronous buck controllers, each shipping with a 2MHz peak current-mode controller for efficient and fast transient response. Each controller has a wide variety of features including integrated loop compensation, built-in soft start, adjustable peak current limit, low power operation and several power-on reset options. These features help make the device robust and reliable while also providing customizable, and feature-rich solutions. Furthermore, the 0.6mΩ maximum RDS on MOSFETs are ideal for ultra-low power applications.

The ACT8891Q4I133-T has a built-in current shunt amplifier and a scalable DAC. This allows for highly accurate current management and allows for flexible current setting. It also features an embedded flexible precision temperature sensor as well as a temperature monitor and window detector. This feature allows for accurate system temperature measurements and can also be used to detect and respond to thermal events.

In addition, the ACT8891Q4I133-T supports a range of protections, including reverse battery, overheating and over-current, giving it excellent reliability and protection. It can also provide up to 8 priority lanes of sequencing, which help provide orderly start-up and shut-down of multiple power sources.

The ACT8891Q4I133-T is an ideal choice for customers looking for a reliable, low noise, and low impedance PMIC with high efficiency in a small package. It works well in automobiles, telecommunications, industrial, and consumer applications.

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