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Renesas ISL69138IRAZ-T7A
- Part No.:
- ISL69138IRAZ-T7A
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- -
- Datasheet:
-
ISL69138IRAZ-T7A.pdf
- Description:
- VR13 OVER CLOCK 6+1 PHASE DIGITA
- Quantity:
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Inventory:3,685
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Product details
Overview
ISL69138IRAZ-T7A from Renesas Electronics is a digital, dual-output, 7-phase configurable PWM controller compliant with Intel VR13 and IMVP8 specifications. It supports flexible phase allocation (e.g., 6+1, 5+2, 3+3) across two outputs, delivers up to 1MHz switching frequency, uses SVID/PMBus 1.3 interfaces, and enables precise core/mem rail regulation in high-performance server and desktop platforms.
For engineers reviewing the ISL69138IRAZ-T7A datasheet, ISL69138IRAZ-T7A pinout, ISL69138IRAZ-T7A application, or ISL69138IRAZ-T7A equivalent, key selection criteria include VR13/IMVP8 compliance, synthetic current modulation architecture, diode emulation capability, auto phase add/drop behavior, and PowerNavigator™-based configuration via PMBus 1.3 at up to 2MHz.
Technical Context
The ISL69138IRAZ-T7A implements Renesas' proprietary linear digital modulation with zero-latency synthetic current sensing for high-frequency phase current balance and fast transient response. Its dual-edge modulation and DVID support meet tight voltage accuracy requirements under dynamic load steps typical of modern Intel CPUs.
It integrates a multi-tiered overcurrent protection system-including pulse-by-pulse phase limiting, total output current protection, and configurable Catastrophic Failure Protection (CFP)-alongside differential remote sensing for ±0.5% closed-loop accuracy across load, line, and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Control Architecture | Digital, linear, synthetic current modulation with zero-latency current synthesis |
| Max Switching Frequency | 1MHz - enables compact, high-density multiphase regulator designs |
| Phase Configuration | X+Y ≤ 7 phases - supports 6+1, 5+2, 4+2, 3+3, 3+2, 7+0, etc. per dual output |
| Interface Protocol | SVID + PMBus 1.3 - full compatibility with Intel VR13/IMVP8 microprocessor communication |
| Voltage Sensing Accuracy | ±0.5% closed-loop system accuracy - achieved via differential remote sensing over full operating range |
| Bus Speed | Up to 2MHz PMBus - enables rapid configuration and real-time telemetry updates |
| Current Sensing | Highly accurate DCR sense with integrated temperature compensation - ensures stable OCP and load-line regulation |
Pinout & Package
ISL69138IRAZ-T7A is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per the ISL69138 datasheet Rev. 2.00, including dedicated SVID command pins, PMBus I/O, phase enable/control signals, voltage sense inputs, and fault flag outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Power input for internal LDOs and logic circuitry; requires local decoupling |
| VOUT_X / VOUT_Y | Output voltage feedback | Differential remote sense inputs for each output; critical for ±0.5% regulation accuracy |
| SVID_DATA / SVID_CLK | Intel SVID interface | Two-wire serial interface for dynamic voltage identification and processor communication |
| PMBUS_SDA / SMBUS_SCL | PMBus 1.3 interface | Configurable bidirectional bus supporting up to 2MHz for telemetry and setup |
| PGOOD_X / PGOOD_Y | Power-good status | Open-drain outputs indicating valid regulation on respective outputs |
| CFP | Catastrophic fault flag | Configurable active-low output signaling critical failure conditions (e.g., OV, UV, OC) |
Key Features
| Feature | Design Value |
|---|---|
| Auto phase add/drop with boot refresh | Optimizes efficiency across 0–100% load by dynamically enabling/disabling phases while maintaining stability during transitions |
| Diode emulation mode | Disables high-side FET during light-load discontinuous conduction, reducing switching losses and improving light-load efficiency |
| Dual-edge modulation | Enables faster duty-cycle adjustment per cycle, significantly improving transient response to CPU load steps |
| Black box fault recording | Stores pre-fault telemetry (voltage, current, temperature) for root-cause analysis without external logging hardware |
| NVM for 8 configurations | On-chip non-volatile memory stores multiple validated setups-enables quick reconfiguration across platform variants |
Applications
| Core Rail for VR13 Platforms | Memory Rail for IMVP8 Systems |
|---|---|
Use Scenario: Regulating CPU core voltage in Intel Xeon Scalable or Core i9-based servers with aggressive DVFS and overclocking. IC Role / Device Role / Timing Role: Primary VR13-compliant PWM controller managing up to 6 phases for core rail, interfacing directly via SVID. Use Value: Delivers ±0.5% voltage accuracy and sub-10µs transient recovery using synthetic current control and dual-edge modulation. | Use Scenario: Powering DDR4/DDR5 memory subsystems requiring tightly regulated VDDQ/VPP rails in IMVP8-compliant workstations. IC Role / Device Role / Timing Role: Secondary IMVP8-compliant output (Y) configured for 1–2 phases with independent DVID and telemetry. Use Value: Enables independent memory rail control with synchronized power-good signaling and shared PMBus monitoring. |
| High-Density Data Center PSU | Overclocking-Enabled Desktop Platform |
Use Scenario: Compact, high-efficiency 7-phase core regulator in 1U server PSUs where board space and thermal density are constrained. IC Role / Device Role / Timing Role: Dual-output controller driving interleaved phases with 1MHz switching and integrated thermal compensation. Use Value: Achieves >90% peak efficiency at 50A+ loads while maintaining <1% droop via DCR-sense-based load-line regulation. | Use Scenario: Enabling extreme overclocking headroom in enthusiast desktop motherboards with adaptive voltage scaling. IC Role / Device Role / Timing Role: Configured in 7+0 mode for maximum core rail phase count, leveraging PowerNavigator™ for real-time tuning. Use Value: Supports dynamic V/f curve adjustments and black-box fault capture during instability events for validation and tuning. |
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 |
|---|---|---|---|
| ISL69147IRAZ-T7A | Same family; supports up to 8 phases (X+Y ≤ 8), adds enhanced telemetry resolution and extended SVID timing margins | Targeted for next-gen VR13.0/IMVP9 platforms requiring higher phase count and tighter DVID slew control | Select when future-proofing for VR13.0 or needing ≥8-phase scalability without redesign |
| RT8879GQW | Analog-digital hybrid controller; fixed 6+1 phase assignment; no NVM; lower PMBus speed (up to 1MHz) | Cost-optimized VR13 implementation for mainstream desktop boards without black-box or multi-config needs | Select for BOM-sensitive designs where synthetic current modulation and 8-configuration NVM are not required |
Compared with ISL69138IRAZ-T7A, ISL69147IRAZ-T7A offers higher phase scalability and refined VR13.0 timing, while RT8879GQW trades configurability and telemetry depth for cost and simplicity-making ISL69138IRAZ-T7A optimal for balanced performance, flexibility, and debug capability in premium platforms.
Availability
ISL69138IRAZ-T7A is available at Aetrix Electronics and suitable for high-performance server core rails, IMVP8 memory regulation, and overclocking-capable desktop platforms requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ISL69138IRAZ-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 for automotive, industrial, infrastructure, and datacenter applications.
The ISL69138IRAZ-T7A belongs to Renesas' VR13/IMVP8 digital multiphase controller product line, engineered specifically to address the precision regulation, fast transient response, and intelligent fault management demands of modern Intel CPU and memory power delivery.
FAQ
What is the primary compliance standard supported by the ISL69138IRAZ-T7A?
The ISL69138IRAZ-T7A is fully compliant with Intel VR13 and IMVP8 specifications. It implements the required SVID interface protocol, DVID timing, and power-state transition behaviors for both core and memory rail regulation. This compliance is verified through Renesas' reference designs and PowerNavigator™ validation suite, ensuring interoperability with Intel processors and chipset power management firmware.
Does the ISL69138IRAZ-T7A support phase doubling for more than seven phases?
Yes, the ISL69138IRAZ-T7A supports phase doubling using the ISL6617A phase doubler IC, enabling up to 14-phase operation. The controller provides dedicated control signals and timing synchronization to drive the doubler, preserving current balance and transient performance. This extension maintains full VR13/IMVP8 compliance and is documented in the ISL69138 datasheet Section 5.3 and Application Note AN1702.
How does the synthetic current modulation in ISL69138IRAZ-T7A improve transient response?
The ISL69138IRAZ-T7A uses zero-latency synthetic current modulation to reconstruct phase currents digitally without relying on analog integrators or delay-prone sensing paths. This enables immediate current error detection and correction within a single switching cycle, resulting in sub-10µs voltage recovery from large load transients-critical for modern CPU burst workloads.
Can the ISL69138IRAZ-T7A operate with only one output active?
Yes, the ISL69138IRAZ-T7A supports single-output operation in a 7+0 configuration, dedicating all seven phases to the X output while disabling Y. This mode retains full functionality-including SVID control, PMBus telemetry, and fault protection-for applications requiring maximum current capacity on a single rail, such as high-end GPU or ASIC core supplies.
What software tool is used to configure and monitor the ISL69138IRAZ-T7A?
PowerNavigator™ software is the official GUI-based configuration and monitoring tool for the ISL69138IRAZ-T7A. It connects via USB-to-PMBus adapter, enables real-time parameter tuning, fault logging, black-box dump analysis, and storage of up to eight complete configurations in on-chip NVM-all without requiring custom firmware development.
ISL69138IRAZ-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:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ISL69138IRAZ-T7A FAQ
1.How can I place an order for ISL69138IRAZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL69138IRAZ-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 ISL69138IRAZ-T7A reliable?
The price and inventory of ISL69138IRAZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL69138IRAZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL69138IRAZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL69138IRAZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL69138IRAZ-T7A?
ISL69138IRAZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL69138IRAZ-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 ISL69138IRAZ-T7A?
For technical support, including ISL69138IRAZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL69138IRAZ-T7A requirements.
6.How does Aetrix verify that ISL69138IRAZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL69138IRAZ-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 ISL69138IRAZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL69138IRAZ-T7A?
All ISL69138IRAZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL69138IRAZ-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 ISL69138IRAZ-T7A part is unused and in its original packaging.
Return procedure for ISL69138IRAZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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