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Renesas ISL6364CCRZ
- Part No.:
- ISL6364CCRZ
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL6364CCRZ.pdf
- Description:
- IC REG CTRLR VR12 2OUT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,739
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Product details
Overview
ISL6364CCRZ from Renesas Electronics (formerly Intersil) is a dual-output VR12-compliant PWM controller for desktop CPU voltage regulation, supporting 4-phase + 1-phase operation, ±0.5% closed-loop system accuracy over load/line/temperature, differential remote sensing, and integrated MOSFET drivers. It delivers precise core/memory and graphics/system agent rail control in high-performance desktop platforms.
For engineers reviewing the ISL6364CCRZ datasheet, ISL6364CCRZ pinout, ISL6364CCRZ application, or ISL6364CCRZ equivalent, key selection criteria include VR12 Serial VID compliance, programmable IMAX/TMAX/BOOT registers, Enhanced Active Pulse Positioning (EAPP) modulation, droop control accuracy, and thermal-compensated current sensing for multi-phase load-line regulation.
Technical Context
The ISL6364CCRZ implements two independent PWM control loops: a 4-phase channel for CPU core/memory VR with EAPP modulation and active phase adding/dropping, and a dedicated 1-phase channel for GPU/system agent VR. Each phase supports up to 1 MHz switching frequency with independent oscillators.
It uses differential remote voltage sensing to eliminate ground potential differences, integrates precision resistor or DCR-based current sensing with thermal compensation via NTC thermistors on TMON/TMONS pins, and supports Intel's PSI# signal for low-power mode entry/exit via SVI2 bus communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output: 4-phase + 1-phase PWM for VR12-compliant CPU core/memory and graphics/system agent rails |
| VIN Range | 4.5 V to 25 V input supply - supports wide-input motherboard auxiliary rails |
| VOUT Range | 0.3 V to 1.8 V programmable via Serial VID - compliant with Intel VR12 desktop voltage requirements |
| System Accuracy | ±0.5% over load, line, and temperature - enables tight voltage positioning for modern CPUs |
| Current Sensing | Programmable resistor or DCR-based with integrated thermal compensation - ensures accurate load-line droop and per-phase current limiting |
| Modulation Scheme | Enhanced Active Pulse Positioning (EAPP) - achieves fast transient response with reduced output capacitance |
| Thermal Monitoring | Dual NTC inputs (TMON/TMONS) with internal digitization - enables real-time thermal compensation of current sense elements |
Pinout & Package
ISL6364CCRZ is housed in a 40-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Renesas ISL6364C datasheet Rev. 1.00 (2011).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Supplies internal circuitry and gate drivers; accepts 4.5–25 V |
| VOUT | Core rail feedback | Differential remote sense input for 4-phase output; connects to CPU VSENSE/VSSSENSE |
| IMON | Current monitor output | Analog current reporting pin used for channel balancing and OCP |
| SVI2_CLK / SVI2_DATA | Serial VID interface | Two-wire SVI2 bus for dynamic voltage/frequency programming and telemetry |
| PSI# | Low-power mode request | Active-low signal indicating processor demand for phase shedding |
| EN | Enable input | Threshold-sensitive enable coordinating startup with other voltage rails |
| TMON / TMONS | Thermal monitoring inputs | Accept NTC thermistor voltages for thermal compensation of current sense gain |
Key Features
| Feature | Design Value |
|---|---|
| VR12 Serial VID Compliance | Full support for Intel VR12 desktop specifications including IMAX, TMAX, BOOT register programming via SVI2 |
| Enhanced Active Pulse Positioning (EAPP) | Patented modulation enabling sub-1 µs transient response without excessive output capacitance |
| Active Phase Adding/Dropping | Dynamic reconfiguration between 1–4 phases based on load and PSI# status - improves light-load efficiency |
| Differential Remote Voltage Sensing | Eliminates PCB ground bounce errors between controller and CPU socket - ensures ±0.5% regulation accuracy |
| Integrated Thermal Compensation | Digitized NTC inputs compensate current sense gain drift across –10°C to +125°C ambient |
Applications
| Desktop CPU Core VR | Desktop Memory VR |
|---|---|
Use Scenario: Regulating voltage for Intel Core i5/i7/i9 processors in ATX desktop motherboards. IC Role / Device Role / Timing Role: Primary 4-phase PWM controller managing core VDDQ and VCCSA rails with SVI2 telemetry. Use Value: Enables precise load-line droop control and <1 µs transient response required by VR12 specification. | Use Scenario: Powering DDR4/DDR5 memory subsystems with tight voltage tolerance. IC Role / Device Role / Timing Role: Secondary 4-phase regulator channel delivering stable VDDQ under dynamic memory bandwidth loads. Use Value: Differential sensing and thermal-compensated current monitoring maintain ±0.5% accuracy across thermal cycling. |
| Graphics System Agent VR | Discrete GPU Auxiliary VR |
Use Scenario: Supplying voltage to integrated GPU and system agent logic in high-end desktop CPUs. IC Role / Device Role / Timing Role: Dedicated 1-phase PWM output configured via SVI2 for independent graphics rail control. Use Value: Independent oscillator and droop programming allow optimized efficiency at light-to-moderate GPU loads. | Use Scenario: Providing auxiliary bias voltage to discrete GPU power stages in enthusiast-class gaming platforms. IC Role / Device Role / Timing Role: Secondary 1-phase output supporting GPU VDDCI or I/O rail with remote sensing and PSI# coordination. Use Value: Synchronized phase shedding with CPU VR reduces system-wide idle power without compromising transient headroom. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6367CRZ | 7-phase capable, supports VR12.5/IMVP8, adds digital current monitoring via PMBus | Targeted at higher-core-count CPUs requiring >4 phases and telemetry logging | Choose ISL6367CRZ when upgrading to VR12.5 platforms or requiring PMBus configurability |
| RT8803AZSP | 6-phase VR12 controller with integrated drivers, no SVI2 support - uses analog VID | Suitable for cost-sensitive mainstream desktop boards without SVI2 dependency | Choose RT8803AZSP where Serial VID is not required and phase count flexibility is prioritized over telemetry |
Compared with ISL6364CCRZ, ISL6367CRZ offers extended VR12.5 compliance and digital telemetry, while RT8803AZSP provides analog VID simplicity and higher phase count but lacks SVI2 and thermal compensation - selection depends on platform generation, bus architecture, and efficiency targets.
Availability
ISL6364CCRZ is available at Aetrix Electronics and suitable for desktop motherboard design, CPU voltage regulation, and graphics subsystem power delivery requiring stable component supply and long-term lifecycle support.
Supply support for ISL6364CCRZ 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 is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and computing markets.
The ISL6364CCRZ belongs to Renesas' VR12-compliant multiphase PWM controller product line, engineered specifically for high-efficiency, tightly regulated CPU and GPU voltage rails in performance desktop platforms.
FAQ
What is the primary function of the ISL6364CCRZ in a desktop motherboard?
The ISL6364CCRZ serves as a dual-output VR12-compliant PWM controller: its 4-phase section regulates the CPU core/memory rail, while its 1-phase section powers the graphics system agent or GPU auxiliary rail. It implements Serial VID (SVI2) communication, droop control, and thermal-compensated current sensing to meet Intel's strict voltage positioning and transient response requirements. The ISL6364CCRZ is essential for stable, efficient, and specification-compliant power delivery in high-performance desktop platforms.
Does the ISL6364CCRZ support Intel's Serial VID (SVI2) interface?
Yes, the ISL6364CCRZ fully supports Intel's Serial VID (SVI2) interface via dedicated SVI2_CLK and SVI2_DATA pins. This enables dynamic voltage and current limit programming, real-time telemetry reporting (including IMON), and coordinated low-power mode transitions using the PSI# signal. The ISL6364CCRZ uses SVI2 to configure IMAX, TMAX, and BOOT registers - a requirement for VR12 desktop compliance. SVI2 functionality is integral to the ISL6364CCRZ's role in modern CPU power management.
How does the ISL6364CCRZ achieve ±0.5% system accuracy?
The ISL6364CCRZ achieves ±0.5% closed-loop system accuracy through differential remote voltage sensing (eliminating PCB ground errors), precision resistor or DCR-based current sensing with integrated thermal compensation (via TMON/TMONS NTC inputs), and calibrated internal reference circuitry. Its EAPP modulation and linear control scheme ensure even PWM pulse distribution during transients, maintaining regulation accuracy across full load, line, and temperature ranges - all verified per VR12 specification. This accuracy is sustained in the ISL6364CCRZ across all operating modes, including phase-shedding states.
What package type and pin count does the ISL6364CCRZ use?
The ISL6364CCRZ uses a 40-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with an exposed thermal pad for enhanced heat dissipation. This RoHS-compliant, Pb-free package is specified in Renesas' official documentation and matches the "Ld QFN" designation in the ordering information. The pinout includes dedicated SVI2, PSI#, IMON, TMON/TMONS, and differential sense inputs - all electrically and mechanically validated for high-density desktop motherboard layouts. The ISL6364CCRZ's package supports automated assembly and thermal reliability in continuous operation.
Can the ISL6364CCRZ operate with both resistor-based and DCR-based current sensing?
Yes, the ISL6364CCRZ supports both precision external resistor and inductor DCR-based current sensing methods. It includes integrated programmable current sense resistors and configurable gain settings to accommodate either approach. Thermal compensation is applied uniformly in both configurations via digitized NTC inputs (TMON/TMONS), ensuring consistent droop accuracy and per-phase current limiting across temperature. This dual-sensing flexibility allows board designers to optimize BOM cost and layout space while maintaining the ISL6364CCRZ's specified ±0.5% system accuracy and channel balancing performance.
ISL6364CCRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Controller, Intel VR12
- Voltage - Input:
- 4.75V ~ 5.25V
- Number of Outputs:
- 2
- Voltage - Output:
- 0.25V ~ 1.52V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (6x6)
ISL6364CCRZ FAQ
1.How can I place an order for ISL6364CCRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6364CCRZ 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 ISL6364CCRZ reliable?
The price and inventory of ISL6364CCRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6364CCRZ is usually 5 days.
3.What payment methods are accepted for ISL6364CCRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6364CCRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6364CCRZ?
ISL6364CCRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6364CCRZ 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 ISL6364CCRZ?
For technical support, including ISL6364CCRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6364CCRZ requirements.
6.How does Aetrix verify that ISL6364CCRZ is sourced from the original manufacturer or authorized distributors?
All ISL6364CCRZ 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 ISL6364CCRZ meets industry standards.
7.What is the process for return or replacement of ISL6364CCRZ?
All ISL6364CCRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6364CCRZ, 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 ISL6364CCRZ part is unused and in its original packaging.
Return procedure for ISL6364CCRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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