Short-Form Datasheet RAA228228 Digital Double Output 20-Phase PWM Controller with Adaptive Voltage Scaling Bus (AVSBus) The RAA228228 is a digital double output 20-phase Features (X+Y 20) PWM controller with an Adaptive Voltage Advanced linear digital modulation scheme Scaling Bus (AVSBus) interface. Auto phase add/drop with PFM mode for The RAA228228 controller can be configured to excellent load vs efficiency profile support any required phase assignment up to a Dual edge modulation with optional diode braking maximum of 20 phases across the two outputs (X+Y). for faster transient response For example, 19+1, 18+2, 17+3, 10+10, or even single output operation as a 20+0 configuration are Excellent V transition performance OUT supported. Increased power density, combined with Zero latency synthetic current control for excellent support for the PMBus V1.3 and Adaptive Voltage high-frequency current balance Scaling Bus (AVSBus) interfaces, allows the RAA228228 to support any demanding power supply Flexible phase assignment from 0 to 20 phases per requirement. output Up to 2MHz switching frequency operation for high The RAA228228 AVSBus interface complements density designs PMBus by providing a common high-speed interface that accelerates point-to-point communication. The Differential remote voltage sensing supports 0.5% communication occurs between the controller and the closed-loop system accuracy over load, line, and load to statically and dynamically control the temperature processor voltage, which delivers a balanced Highly accurate current sensing for excellent load power-efficient design. line regulation and accurate OCP The RAA228228 uses the proprietary Renesas digital Supports the full range of Renesas Smart Power synthetic current modulation scheme to achieve the Stage (SPS) devices industry-best combination of transient response, ease of tuning, and efficiency across the full load range. Comprehensive fault management enables high The diode emulation and automatic phase add/drop reliability systems features allow you to extract maximum efficiency from Pulse-by-pulse (per phase) and total output the converter regardless of load conditions. You can current limiting use the intuitive Renesas PowerNavigator software Black Box status recording capability with first to configure and monitor the device. fault indicator With minimal external components, easy Intuitive configuration using PowerNavigator configuration, robust fault management, and highly accurate regulation capability, implementing a SMBus/PMBus V1.3 and AVSBus compatible high-performance multiphase regulator has never Up to 16 user configurations stored in device been easier. Non-Volatile Memory (NVM) Applications Artificial Intelligence/accelerator cards (FPGA, ASIC) Network equipment Server/storage equipment Telecom/datacom equipment Point-of-load power supply (DSP, ASIC, FPGA) R16DO0008EU0200 Rev.2.0 Page 1 May 17, 2021 202 0 Renesas ElectronicsRAA228228 Short-Form Datasheet VCCS 12V VINSEN 10F 0.1F OUT0 EN0 ENABLE 3.3V VCC 1F PVCC 5V VCC PWM PWM0 EN IOUT ISL99390 CS0 12V VIN 2x22F CSRTN 0 IREFIN BOOT 0.1F R = 0 TOUT/FLT PHASE LSET GND VOS SW 0.1F 5V PVCC VCC PWM1 PWM EN IOUT CS1 ISL99390 12V VIN IREFIN 2x22F BOOT 0.1F TOUT/FLT PHASE AVS VDDIO LSET SW GND VOS AVS CLK 0.1F AVS MDA AVS SDA PVCC 5V VCC PWM PWM9 EN CS9 IOUT 12V VIN ISL99390 2x22F nIOUTALERT IREFIN BOOT 0.1F nVRHOT TOUT/FLT PHASE RAA228228 OUT0 CFP LSET GND VOS SW 0.1F C OUT VSEN0 3300pF RGND0 TEMP0 470pF 5V PVCC VCC PWM PWM10 EN PMSCL IOUT ISL99390 VIN 12V CS10 2x22F PMSDA CSRTN 1 IREFIN BOOT 0.1F R = 0 nPMALERT PHASE TOUT/FLT SW LSET GND VOS ADDR 0.1F CONFIG 5V PVCC VCC PWM EN PWM19 IOUT VIN 12V CS19 ISL99390 2x22F IREFIN BOOT 0.1F TEMP1 TOUT/FLT PHASE OUT1 470pF SW LSET GND VOS C OUT 0.1F OUT1 EN1 ENABLE PG0 VSEN1 3300pF PG1 RGND1 Figure 1. 10+10 Smart Power Stage R16DO0008EU0200 Rev.2.0 Page 2 May 17, 2021