RAA228228GNP#MA0

Overview

The RAA228228GNP#MA0 is a digital dual-output 20-phase PWM controller featuring an Adaptive Voltage Regulation (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 advanced linear digital modulation for superior transient response and efficiency. Key specifications include a differential remote voltage detection accuracy of ±0.5% and support for Renesas Smart Power Stages. It integrates comprehensive fault management, including per-phase current limiting and black box status recording.

Feature Summary

• Advanced linear digital modulation scheme combined with automatic phase add/remove functionality for optimized load and efficiency curves
• Dual-edge modulation with optional diode emulation to enhance transient response and extract maximum efficiency under varying load conditions
• Zero-delay synthesized current control ensuring excellent high-frequency current balance across all active phases
• Comprehensive fault management system featuring per-phase current limiting, total output current limits, and black box state recording with first-fault indication

Applications

• DDR Memory Solutions
• Artificial Intelligence and Accelerator Cards (FPGA, ASIC)
• Network Equipment
• Server and Storage Equipment
• Telecom and Datacom Equipment

Procurement Notes

Verify the specific suffix MA0 against the manufacturer's latest datasheet to confirm package type and marking details. Ensure compatibility with SMBus/PMBus V1.3 and AVSBus protocols for proper system integration. Confirm that the design accommodates the 68-QFN(8x8) footprint and thermal requirements. Check for any recent Product Change Notifications regarding labeling or component updates before finalizing procurement orders.

Selection Notes

Select this controller when designing high-density power supplies requiring precise voltage regulation for complex processors. It is suitable for applications demanding flexible phase distribution between two rails, such as CPU core and memory voltages. Consider its compatibility with Renesas Smart Power Stages for simplified design. Evaluate the need for AVSBus communication for dynamic voltage scaling versus standard PMBus interfaces based on system latency requirements.

Part Context

This component belongs to the RAA228228 series of digital power controllers from Renesas Electronics. It is designed for high-performance computing environments where efficiency and transient response are critical. The series supports various phase configurations to meet diverse power delivery network requirements. It complements other Renesas power management solutions by providing robust digital control capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.