ACT8890Q4I233-T

Series:	ActivePMU™
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Handheld/Mobile Devices
Current - Supply:	420µA
Voltage - Supply:	2.7 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-WFQFN Exposed Pad
Supplier Device Package:	32-TQFN (4x4)

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The ACT8890Q4I233-T is a fixed-frequency current-mode PWM controller with dual-channel, single-phase synchronous rectification buck controller. It is designed for powering a wide range of digital products that require high performance, efficient power conversion. It follows the traditional current mode PWM conversion technique to generate a precise output voltage with lower noise levels and better transient performance, while consuming less power.The main application of the ACT8890Q4I233-T is power conversion, which is done by converting the energy stored in the energy source (such as a battery) or stored in the power supply voltage into usable power with high efficiency. It operates at a fixed frequency of 25MHz and employs integrated dual-phase synchronous rectification to improve efficiency and reduce switching losses. Furthermore, it has a wide range of adjustable output voltage range, from 0.6V to 6.0V, which enables precision voltage regulation for efficient power conversion.The ACT8890Q4I233-T is specifically addressed to various digital products that require high performance, energy efficient power conversion such as portable electronics and digital products, PCs, smart phones, HDTVs, game consoles, etc. Moreover, it also integrates two integrated linear regulators, which enable precise voltage regulation and reduce power dissipation.In order to ensure reliable, safe and efficient power conversion, the ACT8890Q4I233-T also provides multiple system-level protection features, such as over current protection, short circuit protection, over temperature protection, and under voltage lockout. This prevents damage due to excessive current or voltage, which can cause a significant increase in power consumption and reduce the lifespan of the device.In short, the ACT8890Q4I233-T is an energy-efficient, fixed-frequency current-mode PWM controller with dual-channel, single-phase synchronous rectification buck controller, designed for powering a wide range of digital products that require high performance, efficient power conversion. It features an adjustable output voltage range and integrated linear regulators, as well as multiple system-level protection features.

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