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Renesas ISL69122IRAZ-T
- Part No.:
- ISL69122IRAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
ISL69122IRAZ-T.pdf
- Description:
- IC REG CTRLR INTEL 2OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,944
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Product details
Overview
ISL69122IRAZ-T from Renesas Electronics is a digital dual-output, 4-phase configurable VR13-compliant PWM controller with SVID and 2-bit AVID interfaces. It delivers precise core/memory rail regulation for Intel platforms, supports flexible phase allocation (e.g., 3+1 or 2+2), operates up to 1 MHz, and enables ±0.5% closed-loop system accuracy via differential remote sensing.
For engineers reviewing the ISL69122IRAZ-T datasheet, ISL69122IRAZ-T pinout, ISL69122IRAZ-T application, or ISL69122IRAZ-T equivalent, key selection considerations include VR13 compliance, dual-rail SVID/AVID interface support, synthetic current modulation architecture, auto phase add/drop behavior, and PowerNavigator™-based configuration.
Technical Context
The ISL69122IRAZ-T implements Renesas' proprietary digital linear synthetic current modulation, enabling zero-latency current balancing across up to four total phases (X+Y ≤ 4) with dual-edge modulation for sub-100 ns transient response. It natively supports Intel VR13 timing, DVID, and catastrophic fault protection requirements.
Configuration and telemetry are handled via SMBus/PMBus v1.3 (up to 2 MHz), with nonvolatile memory storing eight complete configurations. Fault management includes pulse-by-pulse phase current limiting, total output current protection, OV/UV monitoring on input/output rails, open-sense detection, and black-box fault logging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output (X/Y), flexible phase assignment up to 4 total phases (e.g., 3+1, 2+2, 4+0) |
| Interface Support | Intel SVID + 2-bit AVID - enables direct communication with Intel CPUs for voltage ID and dynamic VID updates |
| Max Switching Frequency | 1 MHz - supports high-density, low-inductance power stage layouts for server and graphics applications |
| System Accuracy | ±0.5% over load, line, and temperature - achieved via differential remote voltage sensing and calibrated DAC |
| Current Sensing | DCR sense with integrated temperature compensation - ensures accurate load-line regulation and OCP across thermal range |
| Fault Logging | Black box recording - captures pre-fault telemetry (voltage, current, temperature) for root-cause analysis |
| Config Storage | 8 NVM configurations - allows field-updatable profiles for multi-rail sequencing, margining, and startup timing |
Pinout & Package
ISL69122IRAZ-T is housed in a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas FN8970 Rev. 0.00 and validated against official package drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 4.5–24 V input; powers internal LDOs and gate drivers |
| VCC / VCCS | Internal regulator supplies | VCC powers logic; VCCS powers analog/sensing circuits - separate domains reduce noise coupling |
| PWM0–PWM3 | Phase gate drive outputs | Four independent PWM outputs supporting flexible X/Y phase mapping and dead-time control |
| CS0–CS3 | Current sense inputs | Differential inputs for DCR-based phase current measurement with integrated temp compensation |
| SVDATA / SVCLK / nSVALERT | SVID bus interface | Direct connection to Intel CPU SVID bus for voltage command, status, and alert signaling |
| AVID0 / AVID1 | 2-bit AVID interface | Hardwired voltage ID selection for legacy or auxiliary rail control without SVID negotiation |
| IMON / TMON / TEMP1 / TEMP2 | Telemetry monitoring | Provides real-time current, temperature, and thermal diode readback for system health monitoring |
| nPMALERT / nVRHOT / CFP | Fault flag outputs | Open-drain signals for PMBus alert, VR hot warning, and configurable catastrophic failure indication |
Key Features
| Feature | Design Value |
|---|---|
| Auto phase add/drop | Dynamic phase activation/deactivation based on real-time load - maintains >90% efficiency from 5% to full load |
| Diode emulation mode | Enables discontinuous conduction mode at light load - eliminates reverse recovery losses in high-side FETs |
| Dual-edge modulation | Independent leading/trailing edge control per phase - reduces output voltage deviation during fast load transients |
| Synthetic current control | Zero-latency digital current synthesis - achieves <5% inter-phase current imbalance at 1 MHz switching |
| Configurable CFP flag | User-defined fault combination (e.g., OV + OCP + thermal) triggers dedicated hardware shutdown signal |
Applications
| Intel CPU Core Rail | DDR Memory VDDQ Rail |
|---|---|
Use Scenario: Regulating voltage for high-performance Intel Xeon or Core i9 processors in dual-socket servers. IC Role / Device Role / Timing Role: Primary VR13-compliant PWM controller managing up to 4 phases with SVID handshake and DVID tracking. Use Value: Enables ±0.5% voltage accuracy and sub-200 ns load-step response required by Intel VR13 spec under 100 A transient loads. |
Use Scenario: Delivering tightly regulated 1.2 V or 1.35 V to DDR4/DDR5 memory subsystems in data center modules. IC Role / Device Role / Timing Role: Secondary output configured as 2-phase rail with differential sensing and AVID fallback for memory controller compatibility. Use Value: Maintains <±10 mV ripple and supports dynamic voltage scaling via SVID commands synchronized with memory controller timing. |
| GPU Core Power Rail | AI Accelerator VDD Rail |
Use Scenario: Supplying scalable core voltage to discrete GPUs (e.g., NVIDIA A100, AMD MI250X) in HPC clusters. IC Role / Device Role / Timing Role: Dual-output controller operating in 4+0 mode with diode emulation and auto phase drop for wide-load-range efficiency. Use Value: Achieves >92% peak efficiency and <15 mV undershoot during 50 A/µs GPU load transients using synthetic current balance. |
Use Scenario: Powering heterogeneous AI accelerators (e.g., Intel Gaudi, Graphcore GC200) requiring independent, sequenced VDD rails. IC Role / Device Role / Timing Role: Configured with two independent outputs (X/Y), each with programmable soft-start, tracking, and fault masking. Use Value: Supports multi-rail sequencing with <1 ms inter-rail delay resolution and black-box logging for accelerator firmware co-debugging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase VR13 controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69132IRAZ-T | Single-output, 6-phase capable (vs. dual-output, 4-phase max); adds PMBus write-protect and enhanced telemetry resolution | Optimized for single-rail, ultra-high-current CPU cores (>300 A); lacks second output for memory rail control | Select when only one high-current rail is needed and 6-phase scalability is required; not suitable for dual-rail VR13 systems. |
| RT8803AGQW | Analog-based dual-output controller; no SVID/AVID support; fixed 2+2 phase assignment; no NVM config storage | Targeted at cost-sensitive client platforms (e.g., desktop motherboards); lacks black-box logging and synthetic current control | Choose for simpler, lower-cost VR12.5 designs where Intel SVID compliance and advanced telemetry are not required. |
Compared with ISL69122IRAZ-T, the ISL69132IRAZ-T offers higher phase count but sacrifices dual-rail flexibility, while the RT8803AGQW provides basic dual-rail control without digital configurability or VR13 compliance - making ISL69122IRAZ-T the only option supporting full SVID, AVID, and dual-rail programmability in a single 4-phase package.
Availability
ISL69122IRAZ-T is available at Aetrix Electronics and suitable for high-performance server core rails, DDR memory power delivery, and GPU/AI accelerator applications requiring stable component supply, long-term lifecycle support, and full VR13 specification compliance.
Supply support for ISL69122IRAZ-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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The ISL69122IRAZ-T belongs to Renesas' Power Management IC portfolio, specifically engineered for Intel VR13-compliant multiphase CPU and memory power delivery in data centers and high-end computing platforms.
FAQ
What is the primary function of the ISL69122IRAZ-T in a VR13 power system?
The ISL69122IRAZ-T serves as a digital dual-output PWM controller that manages up to four total phases across two independent rails - typically CPU core and memory - while fully complying with Intel VR13 specifications. It handles SVID communication, dynamic VID updates, phase add/drop, and fault protection. The ISL69122IRAZ-T integrates synthetic current control and differential sensing to ensure tight voltage regulation and rapid transient response in high-performance computing systems.
Does the ISL69122IRAZ-T support both SVID and AVID interfaces simultaneously?
Yes, the ISL69122IRAZ-T supports concurrent operation of Intel SVID and 2-bit AVID interfaces. SVID handles primary voltage negotiation and telemetry with the CPU, while AVID provides a hardware-selectable backup voltage ID for secondary rails or legacy compatibility. Both interfaces are electrically isolated and can be enabled independently per output in the PowerNavigator™ configuration. This dual-interface capability is a defining feature of the ISL69122IRAZ-T.
What package type and thermal characteristics does the ISL69122IRAZ-T use?
The ISL69122IRAZ-T uses a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with an exposed thermal pad. Its θJA is 32°C/W and θJC is 3.5°C/W when mounted per JEDEC standards with 2 oz copper and 4 thermal vias. The package supports reflow soldering per IPC/JEDEC J-STD-020D.3 and is rated for operation from –40°C to +105°C ambient.
Can the ISL69122IRAZ-T be configured without Renesas PowerNavigator™ software?
No - the ISL69122IRAZ-T requires Renesas PowerNavigator™ for initial configuration, calibration, and firmware updates. While basic operation (e.g., default SVID boot) is possible without host software, full functionality - including phase mapping, loop tuning, fault thresholds, telemetry setup, and NVM profile storage - depends on PowerNavigator™ via PMBus. The ISL69122IRAZ-T does not support standalone EEPROM programming or pin-strapping for configuration.
Which smart power stages are officially supported by the ISL69122IRAZ-T?
The ISL69122IRAZ-T is validated with the ISL99227 60A smart power stage and supports DCR-based current sensing with temperature compensation. It also interoperates with compatible Renesas ISL99xx and RA3 series power stages. The ISL69122IRAZ-T's gate drive strength (2 A sink/source) and adaptive dead-time control are optimized for these stages, ensuring reliable commutation and minimal shoot-through risk across the full 0–1 MHz frequency range.
ISL69122IRAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller, Intel VR13
- Voltage - Input:
- 4.5V ~ 25V
- Number of Outputs:
- 2
- Voltage - Output:
- 0V ~ 3.05V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
ISL69122IRAZ-T FAQ
1.How can I place an order for ISL69122IRAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69122IRAZ-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 ISL69122IRAZ-T reliable?
The price and inventory of ISL69122IRAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69122IRAZ-T is usually 5 days.
3.What payment methods are accepted for ISL69122IRAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69122IRAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69122IRAZ-T?
ISL69122IRAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69122IRAZ-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 ISL69122IRAZ-T?
For technical support, including ISL69122IRAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69122IRAZ-T requirements.
6.How does Aetrix verify that ISL69122IRAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL69122IRAZ-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 ISL69122IRAZ-T meets industry standards.
7.What is the process for return or replacement of ISL69122IRAZ-T?
All ISL69122IRAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL69122IRAZ-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 ISL69122IRAZ-T part is unused and in its original packaging.
Return procedure for ISL69122IRAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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