RT8855
4/3/2/1-Phase PWM Controller for AMD AM2/AM2 CPUsRT8855
4/3/2/1-Phase PWM Controller for AMD AM2/AM2 CPUs
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
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Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
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About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
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Example
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Tape and Reel
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Cut Tape
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Tube or Tray
RT8855 DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
General DescriptionThe RT8855 is a 4/3/2/1-phase synchronous buck controller with two integrated MOSFET drivers for CPU power application and a single-phase buck with integrated MOSFET driver for North-Bridge (NB) chipset.The RT8855 uses differential inductor DCR current sense to achieve phase current balance and active voltage positioning. Other features include adjustable operating frequency, power good indication, external error-amp compensation, over voltage protection, over current protection and enable/shutdown for various applications. The RT8855 comes to a small footprint with WQFN-48L 7x7 package.Features12V Power Supply Voltage4/3/2/1-Phase Power Conversion for VCORE Power3 Embedded MOSFET Drivers (2 for CPU and 1 for NB)Internal Regulated 5V OutputSupport AMD AM2 6-bit Parallel and AM2+ 7-bit Serial VID TablesContinuous Differential Inductor DCR Current SenseAdjustable Frequency (Typically at 300kHz)Selectable 1 or 2 Phase in Power-Saving (PS) ModePhase-Interleaving for VCORE and NB ControllerPower Good IndicationAdjustable Over Current ProtectionOver Voltage ProtectionSmall 48-Lead WQFN PackageRoHS Compliant and Halogen FreeApplicationsDesktop CPU Core PowerLow Voltage, High Current DC/ DC Converter
Key Features
- 12V Power Supply Voltage
- 4/3/2/1-Phase Power Conversion for VCORE Power
- 3 Embedded MOSFET Drivers (2 for CPU and 1 for NB)
- Internal Regulated 5V Output
- Support AMD AM2 6-bit Parallel and AM2+ 7-bit Serial VID Tables
- Continuous Differential Inductor DCR Current Sense
- Adjustable Frequency (Typically at 300kHz)
- Selectable 1 or 2 Phase in Power-Saving (PS) Mode
- Phase-Interleaving for VCORE and NB Controller
- Power Good Indication
- Adjustable Over Current Protection
- Over Voltage Protection
- Small 48-Lead WQFN Package
- RoHS Compliant and Halogen Free
Application
- Desktop CPU Core Power
- Low Voltage, High Current DC/ DC Converter
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Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
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