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Renesas ISL69127IRAZ-T
- Part No.:
- ISL69127IRAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL69127IRAZ-T.pdf
- Description:
- IC REG CTRLR INTEL 2OUT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,606
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Product details
Overview
ISL69127IRAZ-T from Renesas Electronics is a digital dual-output 6+1-phase VR13-compliant PWM controller for Intel microprocessor core and memory rail regulation. It supports SVID and PMBus v1.3 interfaces, delivers up to 1MHz switching frequency, and features Renesas' digital linear synthetic current modulation for zero-latency phase current balancing-used in high-performance server and graphics power delivery systems.
For engineers reviewing the ISL69127IRAZ-T datasheet, ISL69127IRAZ-T pinout, ISL69127IRAZ-T application, or ISL69127IRAZ-T equivalent, key selection considerations include VR13 compliance, dual-output phase configurability (6+1), SVID/PMBus v1.3 support, diode emulation, and differential remote sensing with ±0.5% closed-loop accuracy across load, line, and temperature.
Technical Context
The ISL69127IRAZ-T implements a proprietary digital linear synthetic current modulation architecture that enables pulse-by-pulse current balancing without latency, supporting precise DVID response and dual-edge modulation for sub-100ns transient recovery. It natively interprets SVID commands for dynamic voltage identification and uses PMBus v1.3 for telemetry readback and configuration storage.
Its fault management includes peak/average overcurrent detection per phase, total output current protection, configurable catastrophic failure protection (CFP) flag, open-sense detection, and black-box fault logging. The device supports eight NVM-stored configurations and integrates DCR sense with on-die temperature compensation for accurate load-line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR Compliance | Intel VR13 specification compliant for core and memory rails |
| Output Channels | Dual independent outputs: Channel 1 up to 6 phases, Channel 2 up to 1 phase (6+1 configuration) |
| Interface Protocol | SVID + PMBus v1.3 (up to 2MHz bus speed) |
| Switching Frequency | Up to 1MHz - enables compact magnetics and high-density board layout |
| Voltage Sensing | Differential remote sensing with ±0.5% closed-loop system accuracy over full operating range |
| Current Sensing | High-accuracy DCR sensing with integrated temperature compensation; supports ISL99227 60A smart power stage |
| Fault Protection | Pulse-by-pulse phase OCP, total output OCP, input/output OV/UV, open-sense detect, black-box logging |
Pinout & Package
ISL69127IRAZ-T is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per the official Renesas ISL69127 datasheet Rev 2.00 (Jan 2018), with dedicated SVID, PMBus, phase drive, current sense, voltage sense, and fault signaling terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary power input | Supplies internal LDOs and bias for gate drivers; requires local 10µF ceramic decoupling |
| VDDIO | I/O supply rail | Provides 3.3V logic-level power for SVID/PMBus interface and GPIOs |
| SVID_VR_DATA / SVID_VR_CLK | SVID bidirectional interface | Carries dynamic voltage ID commands and status from Intel CPU; supports DVID slew control |
| PMBUS_SDA / PMBUS_SCL | PMBus v1.3 interface | Enables configuration, telemetry readback (voltage/current/temp), and fault logging at up to 2MHz |
| PHASE0–PHASE5 | Phase driver outputs | 6 high-speed gate drive outputs for external high-side MOSFETs (Channel 1); each supports programmable dead-time |
| PHASE7 | Secondary channel driver | Single-phase drive output for Channel 2 (memory/system agent rail); independently controlled |
| VSNSP/VSNSN | Differential voltage sense inputs | Enable ±0.5% closed-loop accuracy by rejecting PCB IR drop and noise; require Kelvin routing |
| ISENP/ISENN | Differential current sense inputs | Support DCR-based phase current measurement with on-chip temperature compensation for OCP accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Digital linear synthetic current modulation | Eliminates current loop latency and enables real-time per-phase current balancing without analog compensation networks |
| Auto phase add/drop | Dynamically scales active phases from 1 to 6 based on load current, optimizing efficiency across 1–100% load range |
| Diode emulation mode | Disables synchronous rectification at light loads to reduce shoot-through loss and improve efficiency below ~5A |
| Dual-edge modulation | Adjusts both leading and trailing edges of PWM pulses for faster transient response and reduced output voltage deviation |
| Black-box fault logging | Stores timestamped fault data (OCP event, OV/UV, CFP trigger) in nonvolatile memory for post-failure root-cause analysis |
Applications
| Server Core Rail Regulation | Graphics Memory Rail Control |
|---|---|
Use Scenario: Regulating the CPU core voltage in dual-socket x86 servers with dynamic workload scaling. IC Role / Device Role / Timing Role: Primary VR13-compliant PWM controller managing up to six phases for core rail, interfacing directly with CPU via SVID. Use Value: Enables sub-10mV DVID step accuracy and <50µs transient recovery under 50A/µs load steps-critical for AVX-512 burst workloads. | Use Scenario: Powering GDDR6 memory subsystems in AI accelerators and high-end GPUs. IC Role / Device Role / Timing Role: Secondary output channel (1-phase) delivering tightly regulated memory VDDQ with PMBus telemetry for thermal-aware throttling. Use Value: Differential sensing maintains ±0.5% output accuracy despite PCB voltage drop across long memory module traces. |
| Data Center System Agent Rail | High-Density Storage Controller Power |
Use Scenario: Supplying the system agent (SA) and uncore domains in scalable cloud server platforms. IC Role / Device Role / Timing Role: Dual-output operation: Channel 1 (6-phase) for core, Channel 2 (1-phase) for SA rail-both synchronized and coordinated via shared SVID/PMBus. Use Value: Single-controller coordination eliminates inter-rail timing skew and simplifies BIOS power sequencing. | Use Scenario: Powering NVMe SSD controllers and PCIe switch ICs in ultra-dense rack-scale storage units. IC Role / Device Role / Timing Role: Compact 1MHz operation and minimal external components enable <0.5in² regulator footprint per rail. Use Value: High-frequency capability reduces required inductance size by >40%, enabling use of 0.22µH shielded power inductors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase VR13 controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL69137IRAZ-T | 7+1-phase configuration (vs. 6+1); adds one extra high-current phase driver and enhanced thermal monitoring | Targeted at higher-current CPU SKUs (>350W TDP); requires additional PCB area and gate drive strength | Select when core rail current exceeds 400A and phase count scalability beyond 6 is required |
| RT8803AGQW | Analog-based 6+1-phase controller; no PMBus/SVID, only SMBus-lite; lacks black-box logging and synthetic current modulation | Cost-sensitive client/desktop VR12.5 designs; not VR13-compliant or suitable for DVID-critical server workloads | Acceptable only for non-Intel-server applications where SVID, DVID, and telemetry are not required |
Compared with ISL69127IRAZ-T, ISL69137IRAZ-T offers greater phase scalability for extreme TDP CPUs but increases BOM cost and layout complexity; RT8803AGQW provides basic multiphase control at lower cost but omits VR13-specific features, telemetry, and digital tuning-making it unsuitable for server-grade reliability or dynamic voltage management.
Availability
ISL69127IRAZ-T is available at Aetrix Electronics and suitable for high-performance server core regulation, graphics memory rail control, and data center system agent power delivery requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL69127IRAZ-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 SoC solutions for automotive, industrial, and data infrastructure markets.
The ISL69127IRAZ-T belongs to Renesas' VR13 digital multiphase controller product line, engineered specifically for high-efficiency, high-transient-response power delivery to Intel's latest server and desktop processors.
FAQ
What is the primary compliance standard supported by the ISL69127IRAZ-T?
The ISL69127IRAZ-T is fully compliant with Intel VR13 specifications, including SVID protocol implementation, DVID timing requirements, and transient response benchmarks for core and memory rails. It meets all mandatory VR13 electrical, timing, and communication criteria defined in Intel's Voltage Regulator Specification Revision 13.0, enabling direct integration into certified VR13 platform designs without protocol adaptation.
Does the ISL69127IRAZ-T support both SVID and PMBus interfaces simultaneously?
Yes, the ISL69127IRAZ-T supports concurrent SVID and PMBus v1.3 operation: SVID handles real-time CPU voltage commands (DVID), while PMBus manages configuration, telemetry readback (voltage, current, temperature), and fault logging. Both interfaces operate independently-SVID uses dedicated pins (VR_DATA/VR_CLK), and PMBus uses separate SDA/SCL lines-with no resource contention or arbitration required.
What power stages are officially supported by the ISL69127IRAZ-T?
The ISL69127IRAZ-T is validated with the ISL99227 60A smart power stage and supports DCR-based current sensing with integrated temperature compensation. It also interoperates with discrete MOSFET gate drivers and external high-side/lower-side FETs using standard bootstrap or isolated gate drive configurations, provided gate drive timing and voltage levels meet ISL69127IRAZ-T's PHASEx output specifications.
How many configurations can be stored internally in the ISL69127IRAZ-T?
The ISL69127IRAZ-T includes on-chip nonvolatile memory (NVM) capable of storing up to eight complete configuration sets-including phase assignment, OCP thresholds, DVID tables, and telemetry settings-which can be selected dynamically via PMBus or SVID command. This enables rapid reconfiguration for multi-SKU platforms or field-upgradable power policies without external EEPROM dependency.
What fault protection mechanisms are implemented in the ISL69127IRAZ-T?
The ISL69127IRAZ-T implements comprehensive hardware-based fault protection: pulse-by-pulse phase overcurrent limiting, total output overcurrent detection, input/output overvoltage and undervoltage lockout, open voltage sense detection, and configurable Catastrophic Failure Protection (CFP) flag assertion. All protections trigger within ≤200ns and support black-box logging of pre-fault telemetry for diagnostics.
ISL69127IRAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-VFQFN 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:
- 48-QFN (6x6)
ISL69127IRAZ-T FAQ
1.How can I place an order for ISL69127IRAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69127IRAZ-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 ISL69127IRAZ-T reliable?
The price and inventory of ISL69127IRAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69127IRAZ-T is usually 5 days.
3.What payment methods are accepted for ISL69127IRAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69127IRAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69127IRAZ-T?
ISL69127IRAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69127IRAZ-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 ISL69127IRAZ-T?
For technical support, including ISL69127IRAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69127IRAZ-T requirements.
6.How does Aetrix verify that ISL69127IRAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL69127IRAZ-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 ISL69127IRAZ-T meets industry standards.
7.What is the process for return or replacement of ISL69127IRAZ-T?
All ISL69127IRAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL69127IRAZ-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 ISL69127IRAZ-T part is unused and in its original packaging.
Return procedure for ISL69127IRAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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