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Renesas ISL69223IRAZ-T
- Part No.:
- ISL69223IRAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- -
- Datasheet:
-
ISL69223IRAZ-T.pdf
- Description:
- VR13HC 3OUT/3PH DIGITAL CONTROLL
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Product details
Overview
ISL69223IRAZ-T from Renesas is a digital dual-output, 4-phase PWM controller supporting flexible phase allocation (e.g., 3+1, 2+2) across two outputs with PMBus V1.3 interface, ±0.5% closed-loop system accuracy via differential remote sensing, and up to 2MHz switching frequency - designed for high-density point-of-load regulation in AI accelerator cards and server memory subsystems.
For engineers reviewing the ISL69223IRAZ-T datasheet, ISL69223IRAZ-T pinout, ISL69223IRAZ-T application, or ISL69223IRAZ-T equivalent, key selection criteria include synthetic current modulation architecture, auto phase add/drop with diode emulation, per-phase pulse-by-pulse OCP, Black Box fault recording, and compatibility with Renesas smart power stages including ISL99380 and ISL99360.
Technical Context
The ISL69223IRAZ-T implements Renesas' proprietary digital synthetic current modulation, enabling zero-latency current synthesis and dual-edge PWM control with optional diode braking for sub-100ns transient response. It supports independent configuration of two output rails (X/Y) with total phase count ≤4 and programmable phase assignment per rail.
Its PMBus V1.3 interface enables full telemetry (VOUT, IOUT, VIN, temperature), real-time fault logging via Black Box status recording, and storage of up to 16 user configurations in on-chip NVM. Fault management includes per-phase overcurrent limiting, thermal warning (nVRHOT), catastrophic failure detection (CFP), and configurable UV/OV/UT/OT responses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output (X+Y ≤4 phases); supports 3+1, 2+2, 2+1, 1+1, or 4+0 single-rail operation |
| Switching Frequency | Up to 2MHz - enables compact magnetics and high power density designs |
| VOUT Accuracy | ±0.5% over load, line, and temperature using differential remote sensing |
| Current Sensing | High-accuracy lossless sensing supporting smart power stage, DCR, or resistor methods |
| Interface Protocol | PMBus V1.3 compliant with 16 stored NVM configurations and full telemetry readback |
| Fault Protection | Pulse-by-pulse per-phase OCP, total output OCP, Black Box first-fault recording, nVRHOT, CFP |
| Operating Temp | –40°C to +125°C junction temperature - qualified for industrial/server environments |
Pinout & Package
Package: 40-lead QFN, 5mm × 5mm, 0.5mm pitch, exposed pad (RoHS-compliant, MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM[3:0] | PWM output drivers | Four logic-level PWM outputs for driving smart power stages (e.g., ISL99380); 3.3V compatible |
| CS[3:0] / CSRTN[3:0] | Phase current sense inputs | Differential inputs for per-phase current monitoring; support SPS, DCR, or discrete resistor sensing |
| VSEN[1:0] / RGND[1:0] | Differential output voltage sense | Remote sensing pair per output rail; enables ±0.5% regulation accuracy under load/thermal drift |
| EN[1:0] | Output enable control | Independent enable pins for each output; tied low if unused |
| PG[1:0] | Power-good indicators | Open-drain outputs signaling valid regulation; require external pull-up resistors |
| nVRHOT / CFP | Thermal & catastrophic fault alerts | nVRHOT asserts low on overtemperature; CFP signals major fault events (e.g., short-circuit, thermal runaway) |
| PMSCL / PMSDA / nPMALERT | PMBus interface | Standard SMBus-compatible bus interface with alert response capability for fault notification |
| VINSEN / VMON | Input voltage monitors | VINSEN senses main input rail; VMON monitors driver supply (e.g., 5V or 12V PVCC) |
Key Features
| Feature | Design Value |
|---|---|
| Auto phase add/drop with PFM mode | Maintains peak efficiency across 1–100% load range by dynamically enabling/disabling phases and entering diode-emulation light-load mode |
| Dual-edge modulation + diode braking | Reduces output voltage undershoot during load transients by up to 40% compared to single-edge schemes |
| Synthetic current control | Eliminates need for physical current-sense resistors while delivering <1% current imbalance across phases at >1MHz switching |
| Black Box fault recorder | Stores first-fault event context (register state, telemetry snapshot) for root-cause analysis without host intervention |
| Configurable OCP response | Per-phase pulse-by-pulse limiting plus total output shutdown with programmable retry or latch-off behavior |
Applications
| DDR Memory Power Delivery | AI Accelerator Card Regulation |
|---|---|
|
Use Scenario: Providing tightly regulated 1.2V/1.8V dual-rail power to DDR4/DDR5 memory modules in servers and workstations. IC Role / Device Role / Timing Role: Dual-output controller managing separate VDDQ and VPP rails with synchronized phase shedding and dynamic voltage scaling. Use Value: Achieves ±0.5% output accuracy under fast load steps (0–80A/µs), minimizing memory timing margin loss and enabling higher data rates. |
Use Scenario: Delivering scalable, telemetry-rich power to FPGA or ASIC cores on PCIe-based AI accelerator cards (e.g., NVIDIA A100, AMD Instinct). IC Role / Device Role / Timing Role: Primary multiphase controller coordinating up to four phases per rail with PMBus-based dynamic reconfiguration during inference/training modes. Use Value: Enables real-time thermal derating and adaptive phase control via PowerNavigator™, extending silicon lifetime under sustained 300W+ loads. |
| Network Switch ASIC Supply | Enterprise Storage Controller Rail |
|
Use Scenario: Generating 0.8V core and 1.8V I/O rails for high-speed network switch ASICs operating in telecom/datacom chassis with strict thermal constraints. IC Role / Device Role / Timing Role: Dual-output controller with independent loop tuning and per-rail fault isolation to prevent cascading failures in multi-rail systems. Use Value: Diode emulation reduces no-load power by >65%, critical for energy-efficient 24/7 operation in carrier-grade equipment. |
Use Scenario: Regulating 1.0V/1.2V rails for NVMe SSD controllers and RAID processors in enterprise storage enclosures with hot-swap capability. IC Role / Device Role / Timing Role: Multiphase controller with Black Box logging and nVRHOT signaling to support predictive maintenance and firmware-triggered thermal throttling. Use Value: First-fault capture enables field failure correlation without requiring debug probes, reducing RMA turnaround time by >40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output multiphase controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL68223IRAZ-T | Base part; 4-phase max, PMBus-only, QFN-40 | Optimized for cost-sensitive DDR and mid-tier AI cards | Select for designs requiring proven PMBus ecosystem integration and Renesas PowerNavigator™ support |
| ISL68233IRAZ-T | 5-phase max, adds AVSBus support, same QFN-40 package | Required for AVS-enabled SoCs (e.g., Intel Stratix 10, Xilinx Versal) needing dynamic voltage scaling | Choose when AVS protocol compliance and extended phase count are mandatory for SoC power sequencing |
Compared with ISL68223IRAZ-T, the ISL68233IRAZ-T adds AVSBus capability and one extra phase but shares identical pinout, layout, and firmware toolchain - making it a drop-in upgrade for AVS-aware platforms, whereas ISL68223IRAZ-T remains optimal for pure PMBus implementations where phase count ≤4 suffices.
Availability
ISL69223IRAZ-T is available at Aetrix Electronics and suitable for DDR memory solutions, AI accelerator cards, and enterprise storage controller rails requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for ISL69223IRAZ-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power management, and connectivity solutions for automotive, industrial, and datacenter markets.
The ISL69223IRAZ-T belongs to Renesas' ISL68/69xxx digital multiphase controller family, engineered specifically for high-efficiency, telemetry-rich point-of-load regulation in AI, HPC, and cloud infrastructure applications.
FAQ
What is the maximum supported switching frequency for the ISL69223IRAZ-T?
The ISL69223IRAZ-T supports up to 2MHz switching frequency per phase. This enables use of smaller inductors and capacitors, improving power density in space-constrained applications like AI accelerator cards and DDR5 memory modules. Operation above 1MHz requires careful PCB layout to minimize gate-drive loop inductance and maintain stability.
Does the ISL69223IRAZ-T support diode emulation mode?
Yes, the ISL69223IRAZ-T supports diode emulation mode with automatic phase add/drop, enabling high efficiency at light loads. This feature eliminates reverse recovery losses in synchronous rectifiers and reduces no-load power consumption - critical for always-on network and storage systems where ISL69223IRAZ-T is commonly deployed.
Can the ISL69223IRAZ-T be configured for single-output operation?
Yes, the ISL69223IRAZ-T supports 4+0 single-output operation, allocating all four phases to one rail while disabling the second output. This configuration is used in high-current applications such as GPU core supplies or high-power FPGA rails where >200A output is required, and ISL69223IRAZ-T's synthetic current synthesis ensures tight inter-phase current balance.
What smart power stages are recommended for use with the ISL69223IRAZ-T?
Renesas recommends ISL99380 (80A), ISL99360 (60A), and ISL99227B (60A) smart power stages with the ISL69223IRAZ-T. These devices provide integrated current sensing, temperature monitoring, and fault reporting via dedicated pins (TOUT, TREF, REFIN), enabling full telemetry and coordinated protection without external components.
How does the Black Box fault recorder function in the ISL69223IRAZ-T?
The ISL69223IRAZ-T's Black Box records the first fault event - including register contents, telemetry values (VOUT, IOUT, temperature), and fault source - into non-volatile memory. This allows post-failure analysis without host processor involvement. The feature is enabled by default and requires no configuration, making ISL69223IRAZ-T suitable for unattended infrastructure deployments.
ISL69223IRAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Voltage - Input:
- -
- Number of Outputs:
- -
- Voltage - Output:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ISL69223IRAZ-T FAQ
1.How can I place an order for ISL69223IRAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69223IRAZ-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL69223IRAZ-T reliable?
The price and inventory of ISL69223IRAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69223IRAZ-T is usually 5 days.
3.What payment methods are accepted for ISL69223IRAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69223IRAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69223IRAZ-T?
ISL69223IRAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69223IRAZ-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL69223IRAZ-T?
For technical support, including ISL69223IRAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69223IRAZ-T requirements.
6.How does Aetrix verify that ISL69223IRAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL69223IRAZ-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL69223IRAZ-T meets industry standards.
7.What is the process for return or replacement of ISL69223IRAZ-T?
All ISL69223IRAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL69223IRAZ-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL69223IRAZ-T part is unused and in its original packaging.
Return procedure for ISL69223IRAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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