RAA228228GNP#HA0

Overview

The RAA228228GNP#HA0 is a digital dual-output 20-phase PWM controller featuring an Adaptive Voltage Regulation Bus (AVSBus) interface. It supports flexible phase allocation across two outputs with a maximum of 20 phases total, operating at switching frequencies up to 2 MHz. The device utilizes advanced linear digital modulation and zero-delay synthetic current control for high-frequency balance. It includes differential remote voltage detection supporting ±0.5% accuracy, comprehensive fault management, and non-volatile memory for storing up to 16 user configurations.

Feature Summary

• Advanced linear digital modulation scheme combined with automatic phase add/remove functionality for optimized efficiency curves.
• Dual-edge modulation and optional diode emulation to enhance transient response and extract maximum efficiency under varying load conditions.
• Zero-delay synthetic current control architecture ensuring precise high-frequency current balancing across all active phases.
• Integrated AVSBus interface complementing PMBus V1.3 support for direct processor voltage control and energy-efficient system design.

Applications

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

Procurement Notes

Verify the specific suffix designation against official Renesas documentation to confirm package type and tape/reel specifications. Ensure compatibility with SMBus/PMBus V1.3 and AVSBus protocols during integration. Confirm moisture sensitivity level handling requirements prior to assembly. Validate that the selected configuration aligns with the required phase distribution between the two independent outputs.

Selection Notes

Select this component when designing high-density power systems requiring precise multi-phase regulation for processors or accelerators. The dual-output capability allows flexible phase sharing, such as 10+10 or asymmetric distributions like 19+1. Choose this model if AVSBus communication is required for dynamic voltage scaling alongside standard PMBus monitoring capabilities.

Part Context

This part belongs to the RAA228228 series of digital power controllers from Renesas Electronics. It is designed for demanding applications where high power density and fast transient response are critical. The series supports various phase counts and output configurations, positioning it within the company's portfolio of advanced PMIC solutions for datacom and telecom infrastructure.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. No alternative part numbers are confirmed in the provided source material.