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Renesas ISL69223IRAZ-T7A
- Part No.:
- ISL69223IRAZ-T7A
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- -
- Datasheet:
-
ISL69223IRAZ-T7A.pdf
- Description:
- VR13HC 3OUT/3PH DIGITAL CONTROLL
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Product details
Overview
ISL69223IRAZ-T7A from Renesas is a digital dual-output, 4-phase PWM controller supporting flexible phase allocation (e.g., 3+1 or 2+2) across two independent outputs, with PMBus v1.3 interface, up to 2MHz switching frequency, and ±0.5% closed-loop system accuracy via differential remote sensing - deployed in DDR memory power delivery and AI accelerator card VRMs.
For engineers reviewing the ISL69223IRAZ-T7A datasheet, ISL69223IRAZ-T7A pinout, ISL69223IRAZ-T7A application, or ISL69223IRAZ-T7A equivalent, key selection criteria include synthetic current modulation for transient response, auto phase add/drop with diode emulation, SMBus/PMBus v1.3 programmability, and support for Renesas smart power stages including ISL99380 and ISL99360.
Technical Context
The ISL69223IRAZ-T7A implements Renesas' proprietary digital synthetic current modulation architecture, enabling zero-latency current synthesis and high-frequency phase current balancing. It supports dual-edge modulation with optional diode braking for sub-100ns load-step response and configurable PFM operation for light-load efficiency.
Its fault management includes per-phase pulse-by-pulse current limiting, black box status recording with first-fault indicator, and comprehensive overvoltage/undervoltage, overcurrent, and thermal protection - all accessible and configurable via PMBus commands including READ_IOUT, STATUS_VOUT, and PEAK_OC_LIMIT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output (X+Y ≤ 4 phases), e.g., 3+1 or 2+2 - enables independent regulation of CPU core and memory rails. |
| Switching Frequency | Up to 2MHz - supports high-density, low-inductance PCB layouts for server and AI applications. |
| Voltage Sensing Accuracy | ±0.5% closed-loop system accuracy over load, line, and temperature - achieved via differential remote sensing on VSEN0/VSEN1 and RGND0/RGND1. |
| Current Sensing | High-accuracy lossless sensing using CS/CSRTN inputs - supports smart power stage, DCR, or resistor-based methods with programmable gain. |
| Interface Protocol | PMBus v1.3 compliant - enables full telemetry (READ_VOUT, READ_IOUT, READ_TEMPERATURE_1), configuration (VOUT_COMMAND, FREQUENCY_SWITCH), and fault logging (STATUS_WORD, BLACK BOX). |
| Operating Temperature | –40°C to +125°C junction - qualified for industrial and enterprise-grade power systems. |
| NVM Storage | 16 user configurations stored in on-chip non-volatile memory - allows field reconfiguration without external EEPROM. |
Pinout & Package
Package: 40-lead QFN, 5mm × 5mm, 0.5mm pitch, exposed thermal pad (RoHS-compliant, MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM[3:0] | Phase gate drive outputs | Four 3.3V logic-compatible PWM signals driving smart power stages (e.g., ISL99380); support phase interleaving and dynamic add/drop. |
| CS[3:0] / CSRTN[3:0] | Differential current sense inputs | Per-phase current feedback path; supports DCR, resistor, or integrated SPS sensing - critical for synthetic current loop stability. |
| VSEN0/VSEN1 & RGND0/RGND1 | Differential output voltage sense | Enables Kelvin remote sensing for ±0.5% regulation accuracy - required for DDR and ASIC point-of-load applications. |
| PMSCL / PMSDA / nPMALERT | PMBus interface pins | Standard SMBus physical layer with alert interrupt; enables real-time telemetry, configuration, and fault reporting without host polling overhead. |
| nVRHOT / CFP | Thermal and catastrophic fault indicators | Open-drain outputs signaling overtemperature (nVRHOT) or major failure (CFP); used for system-level shutdown coordination. |
Key Features
| Feature | Design Value |
|---|---|
| Auto phase add/drop with PFM mode | Optimizes efficiency across 0–100% load by dynamically enabling/disabling phases and entering diode-emulation mode at light loads. |
| Dual-edge modulation with diode braking | Reduces output voltage undershoot during fast load transients (e.g., GPU burst) by actively controlling high-side and low-side switch timing. |
| Synthetic current control | Eliminates need for physical current-sense resistors while maintaining precise per-phase current balance up to 2MHz switching. |
| Black Box fault recorder | Stores pre-fault telemetry (VOUT, IOUT, temperature) with timestamp and first-fault flag - accelerates root-cause analysis in field failures. |
| 16-config NVM storage | Allows pre-programmed configurations for multiple rail setups (e.g., DDR4 VDDQ + VPP), reducing boot-time initialization overhead. |
Applications
| DDR Memory Power Delivery | AI Accelerator Card VRM |
|---|---|
Use Scenario: Regulating VDDQ and VPP rails for DDR4/DDR5 memory subsystems in servers and workstations. IC Role / Device Role / Timing Role: Dual-output PWM controller managing independent 3+1 or 2+2 phase allocations with tight voltage tracking and dynamic phase shedding. Use Value: ±0.5% closed-loop accuracy and synthetic current sensing ensure stable memory operation under rapid load transients typical in HPC workloads. | Use Scenario: Providing core and auxiliary power to FPGA or ASIC-based AI accelerators with strict sequencing and telemetry requirements. IC Role / Device Role / Timing Role: Digital multiphase controller delivering up to 400A total with PMBus-based margining, temperature-aware throttling, and real-time current monitoring. Use Value: Black Box recorder and per-phase current telemetry enable predictive maintenance and thermal derating in dense accelerator modules. |
| Network Equipment PSU | Enterprise Storage Controller Power |
Use Scenario: High-efficiency, compact VRM for packet processing ASICs and network processors in 5G baseband units. IC Role / Device Role / Timing Role: Configurable 4-phase controller supporting 2+2 or 4+0 operation with AVS-like voltage scaling via PMBus VOUT_MARGIN_HIGH/LOW. Use Value: Up to 2MHz operation reduces magnetics size and improves transient response for bursty traffic patterns. | Use Scenario: Dual-rail power for NVMe SSD controllers and RAID-on-chip ASICs requiring independent VCCIO and VDD rails. IC Role / Device Role / Timing Role: Dual-output controller with independent soft-start, sequencing, and fault response per rail - coordinated via PMBus PAGE command. Use Value: Differential remote sensing ensures stable 1.2V/1.8V regulation despite PCB IR drop in multi-layer backplane designs. |
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-T7A | Base part; X+Y ≤ 4 phases, PMBus v1.3 only, 40-pin QFN | Targeted at DDR/AI applications requiring high transient response and minimal footprint | Select when design requires synthetic current modulation, black box logging, and ≤4-phase flexibility without AVSBus. |
| ISL68222IRAZ-T7A | X+Y ≤ 5 phases, same package, adds AVSBus support alongside PMBus | Better suited for systems requiring dynamic voltage scaling with Intel VR13/VR14 AVS protocols | Choose if AVSBus compatibility is needed for CPU/GPU voltage coordination; otherwise ISL69223IRAZ-T7A offers tighter integration with Renesas SPS portfolio. |
Compared with ISL68222IRAZ-T7A, the ISL69223IRAZ-T7A provides identical feature depth for PMBus-only systems but excludes AVSBus - simplifying firmware and reducing protocol stack overhead while retaining full synthetic current control, diode braking, and black box diagnostics essential for DDR and AI power delivery.
Availability
ISL69223IRAZ-T7A is available at Aetrix Electronics and suitable for DDR memory solutions, AI accelerator cards, and enterprise network equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL69223IRAZ-T7A 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-T7A belongs to Renesas' ISL68/69xxx digital multiphase controller family, designed specifically for high-performance, telemetry-rich point-of-load power delivery in AI, HPC, and telecom infrastructure.
FAQ
What is the maximum supported switching frequency for the ISL69223IRAZ-T7A?
The ISL69223IRAZ-T7A supports up to 2MHz switching frequency, enabling compact magnetics and improved transient response in high-density power supplies. This capability is confirmed in the datasheet's "Recommended Operating Conditions" section and validated across all phase configurations (e.g., 3+1, 2+2). The ISL69223IRAZ-T7A maintains stable regulation and synthetic current loop integrity at this frequency when paired with compatible smart power stages like ISL99380.
Does the ISL69223IRAZ-T7A support differential remote voltage sensing?
Yes, the ISL69223IRAZ-T7A supports true differential remote sensing on both outputs via dedicated VSEN0/RGND0 and VSEN1/RGND1 pin pairs. This architecture achieves ±0.5% closed-loop system accuracy over load, line, and temperature - a specification explicitly guaranteed in the datasheet's Electrical Specifications table. The ISL69223IRAZ-T7A requires Kelvin connections to the load for full accuracy compliance.
How many user configurations can be stored in the ISL69223IRAZ-T7A's non-volatile memory?
The ISL69223IRAZ-T7A stores up to 16 user-defined configurations in on-chip non-volatile memory (NVM), as documented in the Features section and confirmed in the PMBus command summary (RESTORE_CFG command). Each configuration includes phase assignment, VOUT settings, loop compensation, and protection thresholds - allowing rapid reconfiguration for multi-rail systems without external memory. The ISL69223IRAZ-T7A retains these settings across power cycles.
What fault protection features does the ISL69223IRAZ-T7A provide?
The ISL69223IRAZ-T7A provides per-phase pulse-by-pulse current limiting, total output overcurrent protection, overvoltage/undervoltage detection on VIN, VOUT, and VMON, thermal warning (nVRHOT), catastrophic fault indication (CFP), and black box status recording with first-fault flag. These protections are fully configurable via PMBus commands (e.g., VOUT_OV_FAULT_LIMIT, OT_WARN_LIMIT) and detailed in Sections 6.2–6.7 of the datasheet. The ISL69223IRAZ-T7A integrates hardware-level response with software-accessible telemetry for robust system reliability.
Which smart power stages are recommended for use with the ISL69223IRAZ-T7A?
Renesas recommends ISL99380 (80A), ISL99360 (60A), and ISL99227B (60A) smart power stages for use with the ISL69223IRAZ-T7A, as specified in Table 2 of the datasheet. These devices support TOUT, TREF, REFIN, and FAULT# interfaces and are pin-compatible with the ISL69223IRAZ-T7A's PWM and current-sense architecture. The ISL69223IRAZ-T7A's synthetic current modulation is optimized for these SPS families, ensuring accurate current sharing and fast transient response.
ISL69223IRAZ-T7A 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:
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- Qualification:
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- Mounting Type:
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- Supplier Device Package:
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ISL69223IRAZ-T7A FAQ
1.How can I place an order for ISL69223IRAZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69223IRAZ-T7A 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-T7A reliable?
The price and inventory of ISL69223IRAZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69223IRAZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL69223IRAZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69223IRAZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69223IRAZ-T7A?
ISL69223IRAZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69223IRAZ-T7A 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-T7A?
For technical support, including ISL69223IRAZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69223IRAZ-T7A requirements.
6.How does Aetrix verify that ISL69223IRAZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL69223IRAZ-T7A 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-T7A meets industry standards.
7.What is the process for return or replacement of ISL69223IRAZ-T7A?
All ISL69223IRAZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL69223IRAZ-T7A, 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-T7A part is unused and in its original packaging.
Return procedure for ISL69223IRAZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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