RT2568GQW

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Converter, DDR Bus Termination Regulator
Voltage - Input:	1.1 V ~ 3.5 V
Number of Outputs:	1
Voltage - Output:	Adjustable
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-WDFN (3x3)

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This article focuses on the RT2568GQW application field and working principle, and it is categorized under PMIC - Voltage Regulators - Special Purpose.Application fieldsThe RT2568GQW is a 4-phase highly integrated buck driver with integrated mosfet that supports latest Intel Haswell/Broadwell platform with up to 4 PWM Phase digital coming from CPU’s VRM. The RT2568GQW provides high performance and excellent power efficiency. It supports wide output voltage ranges (1.25V ~ 1.95V With 0.005V step angle) and high current levels.The RT2568GQW application fields include but not limit to:1. Server system: RT2568GQW provides efficient power management in server system and ensures stable output voltage to the load. It ensures that the system runs with minimal power consumption2. Industrial PCs: RT2568GQW is widely applied in Industrial PCs with outstanding performance, providing improved efficiency and reduced thermal management.3. Embedded PC: The RT2568GQW plays an important role in embedded PCs and provides higher stability, lower power consumption and reduced heat generation.4. Notebook PCs: The RT2568GQW is an ideal power management choice for notebook PCs. It helps to improve the power efficiency and continuous delivery of precise voltage.Working principleThe working principle of the RT2568GQW is based on voltage regulation and buck converter technology. This device is designed to support Intel Haswell/Broadwell platform and can provide up to 4 PWM Phase digital coming from CPU’s VRM. It supports a wide output voltage range (1.25V ~ 1.95V With 0.005V step angle) and high current levels.The RT2568GQW combines voltage feedback control and current-mode PWM control and utilizes a 4-phase synchronous buck converter architecture. The device can provide up to 600mA per phase for up to seven phases of output.The voltage regulation is achieved by regulating the output voltage to the set level by having an error amplifier that compares the sensed output voltage to the reference voltage. The current-mode PWM control is implemented through the use of a comparator and an oscillator. The output current is monitored and compared to the programmed current limit. When the current limit is exceeded, the oscillator is shut off.In addition, the RT2568GQW also offers dynamic OCP with voltage margin, Auto-restart protection, output voltage tracking with Active FET turn-off and 100kHz~2MHz input clock with parallel/master synchronization. Thus, it has a wide range of applications in different motherboard applications.ConclusionThe RT2568GQW is a 4-phase highly integrated buck driver with integrated mosfet that supports latest Intel Haswell/Broadwell platform with up to 4 PWM Phase digital coming from the CPU’s VRM. It provides superior performance and excellent power efficiency, and supports a wide output voltage range with high current levels. The working principle of RT2568GQW is based on voltage regulation and buck converter technology, which can provide up to 600mA per phase for up to seven phases of output. The device also offers a wide range of protection features that make it suitable for different motherboard applications.

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