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Help CenterRICHTEK RT8809AGQW,RT8809AZQW RT8809A(07=ED,07 ED,07 EF,07 ...) QFN-24,Multi-Phase PWM Controller for GPU Core Power Supply
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RICHTEK RT8809BGQW,RT8809BZQW RT8809B(08 EE,08=EE,08=EF,08= ...) QFN-24,Multi-Phase PWM Controller for GPU Core Power SupplyUS$ 0.5 - 2MOQ: 1 Piece
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RICHTEK RT8243AZQW RT8243A (8A EE,8A EF,8A EC...),High Efficiency, Main Power Supply Controller for Notebook ComputersUS$ 0.5 - 2MOQ: 1 Piece
The RT8809A/B is a dual-phase synchronous buck PWM controller with integrated drivers which are optimized for high performance graphic microprocessor and computer applications. The IC integrates a G-NAVPTM PWM controller, two 12V MOSFET drivers with internal bootstrap diodes, as well as output current monitoring and protection functions into the WQFN-24L 4x4 package. The RT8809A/B adopts DCR and RDS(ON) current sensing. Load line voltage positioning (droop) and over current protection are accomplished through continuous inductor DCR current sensing, while RDS(ON) current sensing is used for accurate channel current balance. Using both methods of current sampling utilizes the best advantages of each technique. The RT8809A/B also features a one-bit VID control operation in which the feedback voltage is regulated and tracks external input reference voltage. Other features include, adjustable operating frequency, external compensation, and enable/shutdown functions.
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Packaging: Safety package(Carton)
Shipping:
1. We will ship the items within 2 working days after the payment confirmed.
2. We can ship to you by UPS/DHL/TNT/EMS/FedEx/HK post/china post. Please contact us directly and we will use your preferred ways. For the Countries & Regions where EMS cannot deliver, please choose other shipping ways.
Warranty:
1.Our side always double check all the products before delivery to make sure correct.
2.All components we sell has 30 days return policy from the day of shipment, but if the damage is man-made, we will be unable to change for you.
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