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Renesas ISL69124IRAZ-T
- Part No.:
- ISL69124IRAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
ISL69124IRAZ-T.pdf
- Description:
- IC REG CTRLR INTEL 2OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,171
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Product details
Overview
ISL69124IRAZ-T from Renesas Electronics is a digital dual-output, 4-phase configurable VR13-compliant PWM controller for Intel microprocessor core and memory rails. It supports flexible phase assignment (e.g., 3+1 or 2+2), operates up to 1 MHz, delivers ±0.5% closed-loop system accuracy via differential remote sensing, and integrates PMBus v1.3 and SVID interfaces.
For engineers reviewing the ISL69124IRAZ-T datasheet, ISL69124IRAZ-T pinout, ISL69124IRAZ-T application, or ISL69124IRAZ-T equivalent, key selection considerations include VR13 compliance, synthetic current modulation architecture, auto phase add/drop behavior, diode emulation support, and PowerNavigator™-based configuration of eight stored profiles.
Technical Context
The ISL69124IRAZ-T implements a proprietary digital linear synthetic current modulation scheme enabling zero-latency current balancing across phases and dual-edge modulation for sub-100 ns transient response. Its X+Y ≤ 4 phase configuration supports independent output control with shared or split phase allocation.
It features pulse-by-pulse phase current limiting, total output current protection, and configurable Catastrophic Failure Protection (CFP) flag output. Fault telemetry includes black box recording, open voltage sense detection, and peak/average overcurrent detection per phase.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Operating Frequency | 1 MHz - enables high-density, low-inductance power stage layouts with reduced passive size. |
| Phase Configuration | X+Y ≤ 4 phases - supports 4+0, 3+1, 2+2, or 1+3 assignments for asymmetric core/memory rail scaling. |
| Voltage Sensing Accuracy | ±0.5% over load/line/temp - achieved via differential remote sensing, critical for VR13 DVID compliance. |
| Bus Interface | PMBus v1.3 & SVID - enables dynamic voltage identification, telemetry readback, and host-controlled sequencing. |
| Current Sensing | DCR sense with integrated temperature compensation - ensures accurate load-line regulation and OCP across silicon junction temperature range. |
| Config Storage | 8 NVM configurations - allows field-updatable operating modes without external EEPROM or firmware reflash. |
Pinout & Package
ISL69124IRAZ-T is housed in a 40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per the ISL69124 datasheet Rev. 1.00 (FN8673), including dedicated SVID command pins, PMBus clock/data, phase drive outputs, and differential voltage sense inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Provides bias for internal LDOs and gate drivers; requires local 10 µF ceramic decoupling. |
| VOUT1_SENSE+/− | Differential remote sense pair | Enables ±0.5% closed-loop accuracy by rejecting PCB IR drop between controller and CPU VDD plane. |
| SVID_CMD/SVID_CLK | SVID interface signals | Direct connection to Intel CPU SVID bus for dynamic voltage ID, margining, and status reporting. |
| PB0–PB3 | Phase driver outputs | Four PWM outputs supporting interleaved operation; each drives external high-side MOSFET gate via dedicated driver IC or smart power stage. |
| PM_SCL/PM_SDA | PMBus interface signals | Supports up to 2 MHz bidirectional communication for configuration, telemetry, and fault logging. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-edge PWM modulation | Reduces effective switching period by up to 50%, improving transient response time without increasing frequency. |
| Auto phase add/drop | Disables unused phases under light load to reduce switching losses while maintaining regulation stability. |
| Diode emulation mode | Forces discontinuous conduction mode at light loads, eliminating reverse recovery losses in synchronous rectifiers. |
| Synthetic current control | Eliminates need for physical current-sense resistors or complex DCR calibration; achieves inter-phase current balance within ±3%. |
| Black box fault recording | Stores timestamped fault conditions (e.g., OV, UV, OCP) in nonvolatile memory for post-failure root-cause analysis. |
Applications
| Intel CPU Core Rail | DDR Memory Rail |
|---|---|
Use Scenario: High-performance server CPU requiring fast DVID transitions and tight voltage tolerance during turbo boost. IC Role / Device Role / Timing Role: VR13-compliant dual-output PWM controller managing 3-phase core and 1-phase I/O rail with synchronized SVID commands. Use Value: Achieves <100 ns load-step response and ±0.5% regulation accuracy using synthetic current sensing and differential remote sense. | Use Scenario: DDR4/DDR5 memory subsystem needing independent voltage control and phase shedding for efficiency scaling. IC Role / Device Role / Timing Role: Secondary output configured as 1-phase or 2-phase regulator with separate feedback loop and programmable slew rate. Use Value: Enables memory rail efficiency improvement >15% at 20% load via diode emulation and auto phase drop without compromising transient immunity. |
| GPU Core Power | AI Accelerator Rail |
Use Scenario: Discrete graphics card requiring high-current, low-noise core voltage with robust overcurrent protection. IC Role / Device Role / Timing Role: Configured as 4+0 single-output mode driving four parallel power stages with pulse-by-pulse current limiting. Use Value: Delivers 400 A+ capability with <50 mV overshoot on 50 A/µs load steps using diode braking and dual-edge modulation. | Use Scenario: Data center AI accelerator module needing configurable multi-rail sequencing and telemetry for thermal-aware power management. IC Role / Device Role / Timing Role: Dual-output controller coordinating core and auxiliary rails via PMBus, with black box logging for runtime fault diagnostics. Use Value: Supports real-time current/voltage/temperature telemetry and eight pre-stored configurations for dynamic workload adaptation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VR13-compliant multiphase controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69137IRAZ-T | Single-output, 7-phase capable; lacks second independent output and SVID interface. | Targeted at high-current single-rail applications (e.g., GPU core only); not suitable for dual-rail VR13 platforms. | Select when only one high-current rail is needed and phase count >4 is required. |
| RT8803AGQW | Analog-based dual-output, 4-phase controller; no PMBus, no synthetic current sensing, fixed phase assignment. | Lacks digital configurability and telemetry; limited to basic VR12.5/VR13 legacy designs without DVID or black box logging. | Select for cost-sensitive, non-telemetry applications where PowerNavigator™ integration is unnecessary. |
Compared with ISL69124IRAZ-T, the ISL69137IRAZ-T offers higher phase count but sacrifices dual-rail flexibility and SVID compatibility, while the RT8803AGQW provides analog simplicity at the expense of digital configurability, accuracy, and fault diagnostics.
Availability
ISL69124IRAZ-T is available at Aetrix Electronics and suitable for high-performance server core rails, DDR memory power delivery, and GPU power systems requiring stable component supply, long-term lifecycle support, and full VR13 specification compliance.
Supply support for ISL69124IRAZ-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 datacenter applications.
The ISL69124IRAZ-T belongs to Renesas' digital multiphase controller product line, engineered specifically for Intel VR13-compliant CPU and memory power delivery with emphasis on transient performance, configurability, and telemetry-driven reliability.
FAQ
What is the maximum supported switching frequency for the ISL69124IRAZ-T?
The ISL69124IRAZ-T supports operation up to 1 MHz. This high-frequency capability allows designers to use smaller inductors and capacitors, reducing solution footprint and enabling denser board layouts typical in modern server and AI accelerator applications. The 1 MHz limit applies across all valid phase configurations (e.g., 4+0, 3+1, 2+2) and is maintained under full load with proper thermal management. ISL69124IRAZ-T achieves this while preserving <100 ns transient response through dual-edge modulation.
Does the ISL69124IRAZ-T support Intel SVID communication?
Yes, the ISL69124IRAZ-T fully supports Intel SVID v3.0 communication via dedicated SVID_CMD and SVID_CLK pins. It enables dynamic voltage identification, margining, status reporting, and thermal throttling coordination directly with compatible Intel CPUs. SVID operation is independent of PMBus and can coexist with PMBus telemetry for comprehensive system-level power management. ISL69124IRAZ-T implements all mandatory SVID commands required for VR13 platform compliance.
How many configurations can be stored in the ISL69124IRAZ-T's NVM?
The ISL69124IRAZ-T includes on-chip nonvolatile memory capable of storing up to eight complete configuration profiles. These include settings for phase assignment, voltage setpoints, slew rates, protection thresholds, and telemetry enablement. Profiles can be selected dynamically via PMBus or SVID commands, allowing runtime adaptation to different workloads or operating modes. Each stored configuration retains its own fault logging history and calibration data, and ISL69124IRAZ-T retains them across power cycles without external memory.
What current sensing methods does the ISL69124IRAZ-T support?
The ISL69124IRAZ-T supports both DCR sensing with integrated temperature compensation and direct current-sense amplifier inputs. DCR sensing uses the resistance of the power inductor's copper winding, with on-die temperature monitoring to adjust gain and maintain accuracy across –40°C to +125°C. It also accepts signals from external current-sense amplifiers (e.g., ISL99227 smart power stage outputs). ISL69124IRAZ-T does not require external sense resistors, reducing BOM count and board space.
Is the ISL69124IRAZ-T RoHS compliant and lead-free?
Yes, the ISL69124IRAZ-T is Pb-free and RoHS compliant, meeting EU Directive 2011/65/EU requirements. The device uses matte tin (Sn) lead finish on its QFN package terminals and conforms to JEDEC J-STD-020 moisture sensitivity level 3 (MSL3). Renesas documents full material composition and exemption status in its official product change notices and environmental compliance reports. ISL69124IRAZ-T is rated for standard commercial temperature range (0°C to +70°C ambient) and qualifies for "Standard" grade applications per Renesas quality classification.
ISL69124IRAZ-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)
ISL69124IRAZ-T FAQ
1.How can I place an order for ISL69124IRAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69124IRAZ-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 ISL69124IRAZ-T reliable?
The price and inventory of ISL69124IRAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69124IRAZ-T is usually 5 days.
3.What payment methods are accepted for ISL69124IRAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69124IRAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69124IRAZ-T?
ISL69124IRAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69124IRAZ-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 ISL69124IRAZ-T?
For technical support, including ISL69124IRAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69124IRAZ-T requirements.
6.How does Aetrix verify that ISL69124IRAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL69124IRAZ-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 ISL69124IRAZ-T meets industry standards.
7.What is the process for return or replacement of ISL69124IRAZ-T?
All ISL69124IRAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL69124IRAZ-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 ISL69124IRAZ-T part is unused and in its original packaging.
Return procedure for ISL69124IRAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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