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RAA228228GNP#AA0
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Product Detailed Parameters
- Description：DIGITAL DUAL OUTPUT, 20-PHASE PW
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Output Type：PWM
- Function：-
- Output Configuration：Positive
- Topology：-
- Number of Outputs：2
- Output Phases：20
- Voltage - Supply (Vcc/Vdd)：-
- Frequency - Switching：2MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：SMBus
- Control Features：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：68-VFQFN Exposed Pad
- Supplier Device Package：68-QFN (8x8)
- Grade：-
- Qualification：-
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Overview
The RAA228228GNP#AA0 is a digital dual-output 20-phase PWM controller featuring an Adaptive Voltage Scaling (AVS) Bus interface. It supports flexible phase allocation across two outputs with a maximum of 20 phases total, operating at switching frequencies up to 2MHz. The device utilizes Renesas proprietary digital synthetic current control for precise load balancing and transient response. It includes differential remote voltage sensing for ±0.5% accuracy and comprehensive fault management with black box recording. The component is housed in a 68-QFN (8x8mm) package and communicates via SMBus/PMBus V1.3.
Feature Summary
- Digital synthetic current control architecture enables zero-delay phase current tracking and high-frequency balance without external phase multipliers.
- Adaptive Voltage Scaling (AVS) Bus interface allows direct communication with processors for dynamic voltage adjustment and energy efficiency.
- Automatic phase addition and removal in PFM mode optimizes efficiency across varying load conditions.
- Integrated non-volatile memory stores up to 16 user configurations, eliminating the need for external configuration components.
Applications
- Artificial intelligence and accelerator cards utilizing FPGA or ASIC architectures
- High-density server and storage equipment power systems
- Telecommunications and datacom network infrastructure
- DDR memory solution power regulation
Procurement Notes
Verify the specific suffix AA0 against the manufacturer datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm RoHS3 compliance status and moisture sensitivity level (MSL 3) during storage planning. Ensure compatibility with supported Renesas Smart Power Stage devices for optimal system performance. Validate AVSBus protocol support if integrating with processor voltage control interfaces.
Selection Notes
Select this controller for designs requiring high phase counts and precise digital current sharing. It is suitable for applications demanding fast transient response and high efficiency through automatic phase modulation. Consider the 68-QFN package constraints for thermal management and PCB layout. Verify that the host system supports the required SMBus/PMBus and AVSBus protocols for full feature utilization.
Part Context
This component belongs to the RAA2282x series of digital multiphase controllers from Renesas Electronics. The series represents a second-generation platform designed for scalability and flexibility in high-performance power delivery networks. These controllers are engineered to replace traditional analog solutions, offering superior programmability and diagnostic capabilities for complex multi-rail systems.
Replacement Considerations
Consult official Renesas documentation for verified cross-reference part numbers. Ensure any substitute maintains compatibility with the AVSBus interface and supports the required phase count and switching frequency specifications.
