Renesas ISL6364CCRZ-T
- Part No.:
- ISL6364CCRZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL6364CCRZ-T.pdf
- Description:
- IC REG CTRLR VR12 2OUT 48QFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,103
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Product details
Overview
ISL6364CCRZ-T from Renesas Electronics (formerly Intersil) is a dual-output VR12-compliant PWM controller for desktop CPU voltage regulation, supporting 4+1-phase operation with ±0.5% closed-loop system accuracy over load, line, and temperature, 0.5–1.5V output range, and integrated MOSFET drivers. It delivers precise core and graphics rail regulation in high-performance desktop motherboards.
For engineers reviewing the ISL6364CCRZ-T datasheet, ISL6364CCRZ-T pinout, ISL6364CCRZ-T application, or ISL6364CCRZ-T equivalent, key selection criteria include VR12 serial VID compliance, differential remote sensing capability, EAPP modulation for fast transient response, programmable droop, and thermal-compensated current monitoring for Intel CPU power delivery systems.
Technical Context
The ISL6364CCRZ-T implements two independent control loops: a 4-phase PWM channel for CPU core/memory VR and a dedicated 1-phase PWM channel for GPU/SA/I/O VR, each with independent oscillators up to 1 MHz. It uses InterSil's patented Enhanced Active Pulse Positioning (EAPP) modulation to minimize output capacitance requirements while maintaining sub-100ns load-step response.
It supports Serial VID (SVID) interface with programmable IMAX, TMAX, and BOOT registers, enabling dynamic phase add/drop, PSI# signaling, and precise current reporting via the IOUT register. Thermal compensation is applied to both current sense elements using dual NTC thermistor inputs (TMON, TMON6).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual output: 4-phase + 1-phase PWM for VR12-compliant CPU core & graphics/SA rails |
| Input Voltage Range | VIN min = 4.5V, VIN max = 24V - supports wide-input buck controller stage with external high-side FETs |
| Output Voltage Range | 0.5V to 1.5V - programmable via SVID bus for Intel VR12 desktop CPU core and graphics agents |
| System Accuracy | ±0.5% over load, line, and temperature - enables tight voltage positioning per VR12 spec for stable CPU operation |
| Current Sensing | Precision resistor or DCR-based differential sensing with integrated thermal compensation - ensures accurate per-phase current balancing and OCP |
| Modulation Scheme | Enhanced Active Pulse Positioning (EAPP) - reduces required output capacitance and improves transient response without increasing switching frequency |
| Thermal Monitoring | Dual NTC inputs (TMON/TMON6) with internal digitization - enables real-time thermal compensation of current sense and phase management |
Pinout & Package
ISL6364CCRZ-T is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are validated per Renesas ISL6364C datasheet Rev. 5.00 (2011).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Supplies bias and gate drive for all 5 phases; accepts 4.5–24V input |
| VOUT1–VOUT4 | Phase output sense | Differential feedback inputs for 4-phase core rail; enable precise droop and current balance |
| VOUT5 | Single-phase output sense | Feedback input for 1-phase graphics/SA rail; independent regulation loop |
| IMON | Current monitor output | Analog current sense signal used for channel balancing and average OCP |
| SVID Bus Pins (VRMADDR, SCLK, SDATA) | Serial VID interface | Configures IMAX, TMAX, BOOT registers and enables PSI#-driven phase shedding |
| TMON / TMON6 | Thermal sensor inputs | Accept NTC thermistor voltages for dual-zone thermal compensation of current sense and phase control |
Key Features
| Feature | Design Value |
|---|---|
| VR12 Serial VID Compliance | Full support for Intel VR12 SVID protocol including IMAX/TMAX/BOOT programming and PSI# handshake for low-power mode entry/exit |
| EAPP Modulation | Patented pulse positioning scheme delivering <100ns load-step response with reduced output capacitor count and lower ESR dependency |
| Dual Independent Oscillators | Up to 1MHz per phase group - enables optimized frequency selection for core (4-phase) vs. graphics (1-phase) rails |
| Programmable Droop Control | Accurate load-line programming via FB pin current sourcing - maintains target voltage position across full load range |
| Thermally Compensated Current Sensing | Integrated digitization of dual NTC inputs adjusts current sense gain in real time - preserves ±0.5% system accuracy across –10°C to +125°C |
Applications
| CPU Core Voltage Regulation | Graphics System Agent (SA) Rail |
|---|---|
Use Scenario: High-performance desktop motherboard supplying Intel 3rd–5th Gen Core i7/i5 processors requiring strict VR12 voltage positioning and fast transient response. IC Role / Device Role / Timing Role: Primary 4-phase PWM controller managing core VDD voltage with SVID communication, phase shedding, and EAPP-modulated switching. Use Value: Enables ±0.5% closed-loop accuracy and sub-100ns transient recovery - critical for stable overclocking and multi-threaded workloads. | Use Scenario: Dual-rail VR solution where discrete graphics or integrated GPU requires independent, tightly regulated voltage separate from CPU core. IC Role / Device Role / Timing Role: Dedicated 1-phase PWM controller for SA/GPU I/O rail, synchronized via shared SVID bus but operating with independent oscillator and feedback loop. Use Value: Eliminates cross-coupling between core and graphics rails while maintaining VR12 compliance and thermal-aware current limiting. |
| Memory Subsystem VR | Desktop Platform Power Management |
Use Scenario: DDR3/DDR3L memory voltage regulation on VR12-compliant desktop platforms where memory VDDQ must track CPU VDD with defined offset. IC Role / Device Role / Timing Role: Secondary 4-phase output repurposed for memory rail using differential remote sensing and programmable droop. Use Value: Achieves matched load-line behavior and ±0.5% accuracy - ensures signal integrity and timing margin under heavy memory bandwidth loads. | Use Scenario: Full-platform power coordination during sleep/resume cycles (C-states), requiring coordinated rail sequencing and phase-state transitions. IC Role / Device Role / Timing Role: SVID master node managing PSI# signaling, phase add/drop, and thermal throttling coordination across CPU, SA, and memory rails. Use Value: Reduces light-load power by >40% via active phase dropping and enables seamless C6/C7 state transitions without voltage glitch. |
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 |
|---|---|---|---|
| ISL6367CRZ | 7-phase total (6+1), higher IMAX support (up to 350A), added PMBus compatibility | Targeted at VR12.5/VR13 platforms with higher current CPUs; lacks identical SVID register mapping | Choose ISL6367CRZ only if upgrading to VR12.5+ and requiring PMBus telemetry or >300A core rail capability |
| RT8802AGQW | 4+1-phase, supports VR12/IMVP7, integrated gate drivers, no EAPP modulation | Designed for cost-sensitive mainstream desktops; uses conventional PWM with slower transient response (~200ns) | Choose RT8802AGQW when SVID compliance and thermal compensation are required but EAPP-level transient performance is not critical |
Compared with ISL6364CCRZ-T, ISL6367CRZ offers higher phase count and PMBus support but requires firmware updates for VR12.5 register sets, while RT8802AGQW provides functional VR12 compatibility at lower cost and complexity but sacrifices EAPP-enabled transient speed and dual-NTC thermal compensation precision.
Availability
ISL6364CCRZ-T is available at Aetrix Electronics and suitable for high-reliability desktop motherboard design, VR12-compliant CPU power delivery, and graphics subsystem voltage regulation requiring stable component supply and long-term lifecycle support.
Supply support for ISL6364CCRZ-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 Corporation is a global semiconductor leader formed from the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power management, and timing solutions.
The ISL6364CCRZ-T belongs to Renesas' legacy Intersil VR12 multiphase controller product line, engineered specifically for Intel desktop CPU voltage regulation with emphasis on SVID compliance, thermal-aware current sensing, and fast transient response.
FAQ
What is the primary function of the ISL6364CCRZ-T in a desktop motherboard?
The ISL6364CCRZ-T serves as a dual-output VR12-compliant PWM controller, managing 4-phase regulation for the CPU core/memory rail and an independent 1-phase rail for graphics system agent or I/O. It implements SVID communication, EAPP modulation, and thermal-compensated current sensing to meet Intel's strict voltage positioning and transient response requirements. The ISL6364CCRZ-T is essential for stable, high-efficiency power delivery in 3rd–5th Gen Intel Core platforms.
Does the ISL6364CCRZ-T support Intel VR12 Serial VID (SVID) protocol?
Yes, the ISL6364CCRZ-T fully supports Intel VR12 Serial VID protocol, including programmable IMAX, TMAX, and BOOT registers, PSI# signaling for low-power mode coordination, and IOUT register reporting for real-time current telemetry. This allows seamless integration with Intel CPUs for dynamic phase add/drop, voltage scaling, and thermal management. The ISL6364CCRZ-T relies on SVID for all configuration and status exchange.
What package type and pin count does the ISL6364CCRZ-T use?
The ISL6364CCRZ-T uses a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad, designated as "QFN" in Renesas documentation. This package supports high-density motherboard layouts and efficient thermal dissipation for multiphase controller ICs. The ISL6364CCRZ-T pinout is validated per datasheet Rev. 5.00 and includes dedicated SVID, current sense, thermal monitor, and phase driver pins.
How does the ISL6364CCRZ-T achieve fast transient response?
The ISL6364CCRZ-T achieves fast transient response (<100ns) through its proprietary Enhanced Active Pulse Positioning (EAPP) modulation scheme, which dynamically repositions PWM pulses across phases to maximize effective switching frequency without increasing individual phase frequency. This minimizes output capacitor requirements and improves regulation stability. The ISL6364CCRZ-T also uses differential remote sensing and linear control with evenly distributed PWM pulses to maintain phase current balance during transients.
Is the ISL6364CCRZ-T RoHS compliant and lead-free?
Yes, the ISL6364CCRZ-T is Pb-free and RoHS compliant, meeting EU Directive 2011/65/EU requirements. It carries the "Pb-Free" marking in Renesas packaging documentation and is qualified for commercial temperature range (0°C to +70°C). The ISL6364CCRZ-T is manufactured under Renesas' standard RoHS-compliant process and does not contain restricted substances above threshold limits.
ISL6364CCRZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for ISL6364CCRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6364CCRZ-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 ISL6364CCRZ-T reliable?
The price and inventory of ISL6364CCRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6364CCRZ-T is usually 5 days.
3.What payment methods are accepted for ISL6364CCRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6364CCRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6364CCRZ-T?
ISL6364CCRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6364CCRZ-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 ISL6364CCRZ-T?
For technical support, including ISL6364CCRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6364CCRZ-T requirements.
6.How does Aetrix verify that ISL6364CCRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL6364CCRZ-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 ISL6364CCRZ-T meets industry standards.
7.What is the process for return or replacement of ISL6364CCRZ-T?
All ISL6364CCRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6364CCRZ-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 ISL6364CCRZ-T part is unused and in its original packaging.
Return procedure for ISL6364CCRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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