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Renesas ISL69124IRAZ-T7A
- Part No.:
- ISL69124IRAZ-T7A
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
ISL69124IRAZ-T7A.pdf
- Description:
- IC REG CTRLR INTEL 2OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,901
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Product details
Overview
ISL69124IRAZ-T7A 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 X+Y ≤ 4 phase assignments (e.g., 3+1, 2+2), operates up to 1 MHz, delivers ±0.5% closed-loop system accuracy via differential remote sensing, and integrates PMBus v1.3/SVID interfaces for telemetry and configuration.
For engineers reviewing the ISL69124IRAZ-T7A datasheet, ISL69124IRAZ-T7A pinout, ISL69124IRAZ-T7A application, or ISL69124IRAZ-T7A equivalent, key selection considerations include VR13 compliance, synthetic current modulation architecture, auto phase add/drop behavior, diode emulation support, and PowerNavigator™-based configuration with 8 NVM-stored profiles.
Technical Context
The ISL69124IRAZ-T7A 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 control loop supports both DCR and smart power stage (e.g., ISL99227) current sensing with integrated temperature compensation.
It features a comprehensive fault management system including pulse-by-pulse phase current limiting, total output current protection, configurable catastrophic failure protection (CFP) flag, black box fault recording, and open voltage sense detection - all configurable via PMBus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Dual-output, multiphase buck PWM controller with X+Y ≤ 4 phase flexibility (e.g., 4+0, 3+1, 2+2) |
| VR Compliance | Fully compliant with Intel VR13 specification for core/memory rail regulation |
| Max Switching Frequency | 1 MHz - enables high-density, low-inductance power stage design |
| Voltage Sensing Accuracy | ±0.5% over load, line, and temperature using differential remote sensing |
| Interface Protocol | PMBus v1.3 and SVID - supports real-time telemetry, configuration, and dynamic voltage identification (DVID) |
| Current Sensing | Supports DCR sense with on-chip temperature compensation or ISL99227 60A smart power stage interface |
| NVM Configurations | Stores up to 8 complete device configurations in on-chip non-volatile memory |
Pinout & Package
ISL69124IRAZ-T7A 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 (FN8673 Rev. 1.00), supporting dual-output control, PMBus/SVID communication, fault signaling, and precision sensing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary input supply | Supplies internal LDOs and bias circuitry; requires local decoupling |
| VDDIO | I/O supply | Provides 3.3 V bias for PMBus/SVID interface and logic pins |
| SCL/SCL1 | PMBus clock | Supports up to 2 MHz PMBus clock rate for fast telemetry read/write |
| SDA/SDA1 | PMBus data | Open-drain bidirectional bus line with internal pull-up capability |
| VID0–VID6 | SVID address/data | Configurable 7-bit SVID address; also used for dynamic VID updates |
| PGOOD1/PGOOD2 | Power-good status outputs | Active-high open-drain signals indicating regulated output stability per rail |
| CFP | Catastrophic failure flag | Configurable active-low output signaling critical fault events (e.g., OV, UV, OCP) |
| ISEN1+/ISEN1− ISEN2+/ISEN2− | Differential current sense inputs | Accept DCR voltage drop or smart power stage current monitor signals per output |
| VSEN1+/VSEN1− VSEN2+/VSEN2− | Differential remote voltage sense | Enable ±0.5% closed-loop accuracy by rejecting PCB IR drop |
Key Features
| Feature | Design Value |
|---|---|
| Synthetic current modulation | Zero-latency digital current synthesis ensures precise per-phase current balance at >500 kHz bandwidth |
| Auto phase add/drop | Dynamically enables/disables phases based on load current to maintain peak efficiency across 1–100% load range |
| Diode emulation mode | Disables synchronous rectifier during light-load discontinuous conduction to reduce switching losses and improve efficiency below 10% load |
| Dual-edge modulation | Adjusts both leading and trailing edges of PWM pulses for <100 ns transient recovery time under step-load events |
| Black box fault logging | Records timestamped fault conditions (OCP, OV, UV, CFP) into non-volatile memory for post-fault root-cause analysis |
Applications
| High-Performance Server Core Rail | DDR4/DDR5 Memory Rail |
|---|---|
Use Scenario: Regulating CPU core voltage in dual-socket 2U rack servers with dynamic workload scaling. IC Role / Device Role / Timing Role: Primary VR13-compliant PWM controller managing up to 4 phases across one output (4+0), coordinating with ISL99227 power stages. Use Value: Delivers ±0.5% voltage accuracy and sub-100 ns transient response required for Intel Scalable Processors under rapid DVFS transitions. | Use Scenario: Supplying tightly regulated VDDQ/VPP for DDR4/DDR5 modules in enterprise storage controllers. IC Role / Device Role / Timing Role: Secondary VR13-compliant output (X+Y=2+2 or 1+3) with independent DVID and telemetry via SVID. Use Value: Enables simultaneous, independent voltage scaling of memory rails while maintaining <±3 mV load-line regulation via DCR sensing. |
| AI Accelerator GPU Core Rail | Networking ASIC Core Rail |
Use Scenario: Powering high-current GPU cores in AI training accelerators with bursty 50–100 A load steps. IC Role / Device Role / Timing Role: Dual-output controller configured as 3+1 phase assignment, where 3 phases serve GPU core and 1 phase serves I/O domain. Use Value: Synthetic current modulation and dual-edge PWM deliver <50 mV undershoot/overshoot during 30 A/µs load transients. | Use Scenario: Regulating core voltage for 16-nm/7-nm networking ASICs in 100G/400G line cards with strict thermal constraints. IC Role / Device Role / Timing Role: 2+2 phase configuration with diode emulation enabled for low-idle power in packet-processing standby states. Use Value: Achieves >90% efficiency at 10% load via diode emulation and maintains <1% output ripple at 1 MHz switching frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output multiphase PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69134IRAZ-T7A | Same pinout and feature set but adds VR14.0 support and enhanced telemetry resolution; higher cost | Required for platforms adopting Intel VR14.0 spec (e.g., Sapphire Rapids); not backward-compatible for VR13-only designs | Select ISL69134IRAZ-T7A only when VR14.0 compliance or extended telemetry is mandatory |
| MP2960AUK-LF-Z | Single-die dual-output controller with fixed 3+1 phase assignment; no synthetic current modulation; supports only PMBus (no SVID) | Suitable for cost-sensitive VR13 designs without DVID or SVID dependency; lacks black box logging and diode braking | Choose MP2960AUK-LF-Z for simplified VR13 systems where SVID, DVID, and advanced fault logging are unnecessary |
Compared with ISL69124IRAZ-T7A, ISL69134IRAZ-T7A extends VR compliance and telemetry fidelity at higher BOM cost, while MP2960AUK-LF-Z offers reduced feature depth and no SVID support - making ISL69124IRAZ-T7A the optimal balance of VR13 completeness, configurability, and diagnostic capability.
Availability
ISL69124IRAZ-T7A is available at Aetrix Electronics and suitable for high-performance server core rails, DDR memory regulation, AI accelerator GPU power delivery, and networking ASIC core supplies requiring stable component supply, long-term lifecycle support, and full VR13 compliance.
Supply support for ISL69124IRAZ-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 delivering trusted embedded solutions, analog power, and connectivity products for automotive, industrial, infrastructure, and datacenter applications.
The ISL69124IRAZ-T7A belongs to Renesas' Power Management Unit (PMU) product line, designed specifically for high-accuracy, multi-phase voltage regulation in Intel VR13-compliant computing platforms.
FAQ
What is the primary function of the ISL69124IRAZ-T7A in a VR13 platform?
The ISL69124IRAZ-T7A serves as a digital dual-output, 4-phase configurable PWM controller that regulates microprocessor core and memory voltages in compliance with Intel VR13 specifications. It manages phase allocation (e.g., 3+1 or 2+2), executes synthetic current modulation for precise per-phase balancing, and interfaces via PMBus/SVID for real-time telemetry and DVID. Its design enables tight voltage accuracy, fast transient response, and adaptive efficiency optimization - all essential for modern CPU and memory power delivery. The ISL69124IRAZ-T7A is central to achieving VR13's dynamic voltage and current requirements.
Does the ISL69124IRAZ-T7A support both DCR current sensing and smart power stage interfaces?
Yes, the ISL69124IRAZ-T7A supports both DCR-based current sensing with on-chip temperature compensation and direct interface to Renesas ISL99227 60A smart power stages. Its dual-sensing architecture allows designers to choose the most appropriate method based on board space, cost, and accuracy requirements. DCR sensing eliminates external current sense resistors but requires accurate copper trace resistance modeling; ISL99227 integration simplifies layout and improves current measurement fidelity. Both methods feed into the same synthetic current control loop within the ISL69124IRAZ-T7A.
How many configurations can be stored in the ISL69124IRAZ-T7A's NVM, and how are they used?
The ISL69124IRAZ-T7A includes on-chip non-volatile memory capable of storing up to eight complete device configurations. These configurations include phase assignments, voltage setpoints, current limits, fault thresholds, telemetry settings, and PMBus/SVID parameters. Engineers use Renesas' PowerNavigator™ software to develop, validate, and download profiles - enabling rapid platform bring-up, multi-rail tuning, and field firmware updates without hardware changes. Each profile can be selected dynamically via GPIO or PMBus command, allowing runtime adaptation to different operating modes or workloads in the ISL69124IRAZ-T7A.
What fault protection features does the ISL69124IRAZ-T7A provide beyond standard OVP/UVP?
Beyond basic output overvoltage (OVP) and undervoltage (UVP) protection, the ISL69124IRAZ-T7A provides pulse-by-pulse phase current limiting, total output current protection, open voltage sense detection, and a configurable Catastrophic Failure Protection (CFP) flag. It also includes black box fault logging that records timestamps and conditions for up to four fault events - such as OCP, OV, UV, or CFP assertion - into non-volatile memory for post-failure diagnostics. These capabilities enable robust, self-monitoring power systems in mission-critical server and networking applications where the ISL69124IRAZ-T7A is deployed.
Is the ISL69124IRAZ-T7A pin-compatible with other members of the ISL691xx family?
The ISL69124IRAZ-T7A shares the same 40-pin QFN package and pinout with ISL69122, ISL69123, and ISL69134 devices, enabling layout reuse across VR13 and VR14 designs. However, functional differences exist: ISL69122 supports only single-output operation; ISL69123 adds VR12.5 support; ISL69134 adds VR14.0 compliance and enhanced telemetry. While PCBs designed for ISL69124IRAZ-T7A can accommodate these variants, firmware and configuration must be validated per device. Therefore, ISL69124IRAZ-T7A offers true pin compatibility but requires functional verification for drop-in substitution.
ISL69124IRAZ-T7A 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-T7A FAQ
1.How can I place an order for ISL69124IRAZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69124IRAZ-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 ISL69124IRAZ-T7A reliable?
The price and inventory of ISL69124IRAZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69124IRAZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL69124IRAZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69124IRAZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69124IRAZ-T7A?
ISL69124IRAZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69124IRAZ-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 ISL69124IRAZ-T7A?
For technical support, including ISL69124IRAZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69124IRAZ-T7A requirements.
6.How does Aetrix verify that ISL69124IRAZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL69124IRAZ-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 ISL69124IRAZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL69124IRAZ-T7A?
All ISL69124IRAZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL69124IRAZ-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 ISL69124IRAZ-T7A part is unused and in its original packaging.
Return procedure for ISL69124IRAZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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