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Renesas ISL6364AIRZ
- Part No.:
- ISL6364AIRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL6364AIRZ.pdf
- Description:
- IC REG IMVP-7 VR12 2OUT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,607
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Product details
Overview
ISL6364AIRZ from Renesas (formerly Intersil) is a dual-output, VR12/IMVP7-compliant PWM controller for microprocessor voltage regulation, supporting 4+1 phase operation (4-phase core/memory + 1-phase peripheral), ±0.5% closed-loop system accuracy, EAPP modulation, and auto phase shedding. It enables high-efficiency power delivery in CPU VR applications including graphics and system agent rails.
For engineers reviewing the ISL6364AIRZ datasheet, ISL6364AIRZ pinout, ISL6364AIRZ application, or ISL6364AIRZ equivalent, key selection considerations include VR12/IMVP7 SVID compliance, dual-output droop control architecture, EAPP transient response optimization, and PSI#-driven phase management across light-to-heavy load conditions.
Technical Context
The ISL6364AIRZ implements two independent PWM outputs: VR0 (1–4-phase, core/memory) and VR1 (single-phase, graphics/system agent/I/O), each with differential remote sensing and programmable droop. It uses Enhanced Active Pulse Positioning (EAPP) for variable-frequency transient control and linear pulse distribution to maintain phase current balance.
It supports Intel SerialVID interface with programmable IMAX/TMAX/BOOT registers, integrates NTC-based thermal monitoring on TM/TMS pins, and delivers precision current sensing via resistor or DCR with internal comparators for average OCP and per-phase current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Compliance | Intel VR12/IMVP7 specification compliant - ensures interoperability with Intel CPUs and SVID bus communication. |
| Output Configuration | Dual output: VR0 (1–4-phase) + VR1 (1-phase) - enables independent regulation of core/memory and peripheral rails. |
| Accuracy | ±0.5% closed-loop system accuracy over load, line, and temperature - guarantees tight VOUT regulation under dynamic conditions. |
| Modulation Scheme | Enhanced Active Pulse Positioning (EAPP) - reduces beat frequency oscillation and improves transient response without added output capacitance. |
| Phase Control | Auto phase shedding & active phase adding with PSI# signaling - dynamically scales active phases (4→2→1) to maximize light-load efficiency while preserving heavy-load response. |
| Current Sensing | Resistor or DCR-based differential sensing with integrated programmable current sense resistors - enables accurate load-line (droop) programming and channel-current balancing. |
| Thermal Monitoring | Dual NTC inputs (TM/TMS) with internal digitization - provides real-time thermal compensation of current sense elements and overtemperature protection. |
Pinout & Package
ISL6364AIRZ is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per the official ISL6364A datasheet (FN7922), Rev 0.00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary supply input | Provides bias power for internal circuitry; requires local decoupling near pin. |
| FB, FBREF | Feedback reference nodes | Differential remote-sense inputs for VR0 output; enable precise droop control and eliminate ground offset errors. |
| IMON, IMONS | Current monitor outputs | Provide analog current feedback to CPU via IMON pin; IMONS supports secondary current reporting for diagnostics. |
| SVID[5:0], SCLK, SDATA | SVID bus interface | 6-bit address + clock/data lines for bidirectional communication with CPU for VID, PSI#, and register access. |
| PSI#, EN | Power state coordination | PSI# initiates low-power phase shedding; EN enables/disables full controller operation with threshold-sensitive logic. |
| TM, TMS | Thermal sensor inputs | Accept NTC thermistor voltage for dual-zone thermal monitoring and current-sense compensation. |
Key Features
| Feature | Design Value |
|---|---|
| VR12/IMVP7 SerialVID support | Enables full CPU-coordinated voltage scaling, phase control, and telemetry via standardized 6-wire SVID bus. |
| EAPP modulation | Delivers sub-100ns transient response with reduced output capacitor count by eliminating beat-frequency artifacts during load steps. |
| Dual independent oscillators | Up to 2MHz per phase - allows independent frequency tuning for VR0/VR1 to optimize EMI, efficiency, and component size. |
| Droop + diode emulation modes | Configurable light-load operation: droop maintains regulation stability; diode emulation disables synchronous FETs to reduce switching losses. |
| Start-up into pre-charged load | Prevents reverse current flow and enables safe hot-insertion into systems with residual rail voltage. |
Applications
| CPU Core Voltage Regulation | GPU/System Agent Rail |
|---|---|
Use Scenario: Regulating core voltage for Intel 2nd–4th Gen Core i-series processors in desktop and mobile platforms. IC Role / Device Role / Timing Role: Primary VR controller managing 4-phase VR0 output with SVID-driven VID updates and PSI#-triggered phase shedding. Use Value: Achieves ±0.5% regulation accuracy and <100ns transient response using EAPP, reducing required bulk capacitance by ≥30% versus conventional controllers. | Use Scenario: Powering integrated GPU, system agent, or processor I/O domains in VR12-compliant motherboards. IC Role / Device Role / Timing Role: Secondary single-phase VR1 controller with dynamic VID compensation (DVC) and independent droop programming. Use Value: Enables no-droop DVC mode for stable GPU rail during rapid frequency transitions, improving graphics workload stability. |
| Memory Subsystem Regulation | Server Processor I/O Power |
Use Scenario: Delivering tightly regulated DDR3/DDR3L memory VDDQ in high-performance workstations. IC Role / Device Role / Timing Role: Configured as 4-phase VR0 output with coupled-inductor support and precision DCR current sensing. Use Value: Maintains load-line accuracy within ±1% across –10°C to +105°C via integrated thermal compensation of current sense elements. | Use Scenario: Supplying processor I/O voltage in dual-socket server platforms requiring coordinated multi-rail sequencing. IC Role / Device Role / Timing Role: Dual-output controller synchronizing VR0 (core) and VR1 (I/O) startup via threshold-sensitive EN and remote sensing. Use Value: Eliminates ground potential differences between CPU socket and VR board through differential remote sensing, improving OCP trip accuracy by >15%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output VR12/IMVP7 controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6364CRZ | Same silicon die, but rated for commercial temperature range (0°C to +70°C) vs. ISL6364AIRZ's industrial range (–40°C to +85°C). | Not qualified for extended-temperature server or industrial embedded use; lacks thermal compensation calibration at extremes. | Select ISL6364CRZ only for cost-sensitive consumer motherboard designs operating within 0–70°C ambient. |
| RT8803AGQW | Single-chip dual-output VR12 controller with integrated MOSFET drivers; no external gate drivers needed. Lacks EAPP modulation and has fixed 1.2MHz switching frequency. | Reduces BOM count but sacrifices transient response flexibility and light-load efficiency optimization via auto phase shedding. | Choose RT8803AGQW when layout space is constrained and EAPP-level transient performance is not required. |
Compared with ISL6364AIRZ, ISL6364CRZ offers identical functionality at lower cost but reduced thermal robustness, while RT8803AGQW trades configurability and EAPP-enhanced transients for integration and simplified layout - making ISL6364AIRZ optimal for high-performance, thermally demanding VR designs.
Availability
ISL6364AIRZ is available at Aetrix Electronics and suitable for CPU voltage regulation, GPU power delivery, memory subsystem design, and server I/O rail applications requiring stable component supply and long-term industrial temperature support.
Supply support for ISL6364AIRZ 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 Corporation acquired Intersil in 2017 and continues its high-performance analog and power management IC portfolio with ISO 9001-certified manufacturing.
The ISL6364AIRZ belongs to Renesas' VR12/IMVP7-compliant PWM controller product line, engineered specifically for high-efficiency, multi-phase CPU voltage regulation in client and entry-server platforms.
FAQ
What is the operating temperature range of the ISL6364AIRZ?
The ISL6364AIRZ is rated for industrial temperature operation from –40°C to +85°C. This range is validated per the FN7922 datasheet and enables reliable deployment in server motherboards, industrial PCs, and embedded systems where ambient temperatures exceed commercial-grade limits. The ISL6364AIRZ incorporates thermal compensation circuitry calibrated across this full range to maintain current-sense accuracy and droop regulation stability.
Does the ISL6364AIRZ support both resistor-based and DCR-based current sensing?
Yes, the ISL6364AIRZ supports both precision resistor and inductor DCR current sensing methods on VR0 and VR1 outputs. It includes integrated programmable current sense resistors and configurable gain settings to match either method. DCR sensing eliminates discrete sense resistors and reduces power loss, while resistor sensing offers higher signal-to-noise ratio for critical current monitoring in the ISL6364AIRZ design.
How does the ISL6364AIRZ implement auto phase shedding?
The ISL6364AIRZ implements auto phase shedding via Intel SVID PSI# signaling: PSI1 triggers 2-phase operation; PSI2/3 forces single-phase mode with optional diode emulation. Phase dropping and re-adding occur actively - not just gated - preserving loop stability. The ISL6364AIRZ uses proprietary active phase control to minimize current imbalance during transitions, ensuring seamless load-step recovery without voltage overshoot.
Is the ISL6364AIRZ pin-compatible with the ISL6364A series?
Yes, the ISL6364AIRZ is a drop-in replacement for all ISL6364A variants in the same 48-pin QFN package, including ISL6364CRZ and ISL6364HRZ. Pin functions, electrical characteristics, and thermal pad layout are identical. The "IRZ" suffix denotes industrial temperature grade and Pb-free RoHS compliance, with no functional or mechanical deviation from the base ISL6364A silicon.
What thermal monitoring capabilities does the ISL6364AIRZ provide?
The ISL6364AIRZ features dual independent NTC thermistor inputs (TM and TMS) that feed internal ADCs for real-time thermal digitization. This data drives both thermal shutdown protection and dynamic compensation of current-sense amplifier offsets and gains. For example, the ISL6364AIRZ adjusts DCR current sense slope in response to coil temperature drift, maintaining ±1% current measurement accuracy across –40°C to +85°C.
ISL6364AIRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Controller, Intel IMVP-7, VR12™
- Voltage - Input:
- 4.75V ~ 5.25V
- Number of Outputs:
- 2
- Voltage - Output:
- 0.25V ~ 1.52V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (6x6)
ISL6364AIRZ FAQ
1.How can I place an order for ISL6364AIRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6364AIRZ 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 ISL6364AIRZ reliable?
The price and inventory of ISL6364AIRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6364AIRZ is usually 5 days.
3.What payment methods are accepted for ISL6364AIRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6364AIRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6364AIRZ?
ISL6364AIRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6364AIRZ 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 ISL6364AIRZ?
For technical support, including ISL6364AIRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6364AIRZ requirements.
6.How does Aetrix verify that ISL6364AIRZ is sourced from the original manufacturer or authorized distributors?
All ISL6364AIRZ 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 ISL6364AIRZ meets industry standards.
7.What is the process for return or replacement of ISL6364AIRZ?
All ISL6364AIRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6364AIRZ, 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 ISL6364AIRZ part is unused and in its original packaging.
Return procedure for ISL6364AIRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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