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Renesas ISL6364CRZ-T
- Part No.:
- ISL6364CRZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ISL6364CRZ-T.pdf
- Description:
- IC REG IMVP-7 VR12 2OUT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,450
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Product details
Overview
ISL6364CRZ-T from Renesas (formerly Intersil) is a dual-output VR12/IMVP7-compliant PWM controller for microprocessor voltage regulation, featuring 4-phase + 1-phase topology, ±0.5% closed-loop system accuracy over load/line/temperature, EAPP modulation, and SVID bus interface. It regulates core/memory (VR0) and graphics/system agent/I/O (VR1) rails in high-performance computing platforms.
For engineers reviewing the ISL6364CRZ-T datasheet, ISL6364CRZ-T pinout, ISL6364CRZ-T application, or ISL6364CRZ-T equivalent, key selection considerations include VR12/IMVP7 compliance, programmable PSI1/PSI2/PSI3 phase-dropping behavior, differential remote sensing capability, droop control via DCR/resistor current sensing, and thermal compensation with integrated NTC digitization.
Technical Context
The ISL6364CRZ-T implements two independent PWM control loops: VR0 supports 1–4 phases with coupled-inductor compatibility and active phase adding/dropping; VR1 is a dedicated single-phase output with dynamic VID compensation and no droop. Both outputs use SVID for digital communication and support fast dynamic VID slew rate programming.
It employs Enhanced Active Pulse Positioning (EAPP) modulation-patented variable-frequency control during transients to suppress beat-frequency oscillation, linear pulse distribution for phase-current balance, and voltage feed-forward with adjustable ramp options. Thermal monitoring uses dual TMS/TM pins with internal digitization for current-sense compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Compliance | Intel VR12/IMVP7 specification compliant - ensures interoperability with Intel CPUs and SVID-based power management firmware. |
| Output Configuration | Dual output: VR0 (1–4-phase) for CPU core/memory; VR1 (1-phase) for GPU/system agent/I/O - enables discrete rail optimization and independent transient response tuning. |
| System Accuracy | ±0.5% closed-loop system accuracy over full load, line, and temperature range - guarantees tight VOUT regulation under real-world operating conditions. |
| Current Sensing | Supports precision resistor or DCR-based differential current sensing with integrated thermal compensation - enables accurate droop programming and channel-current balancing without external op-amps. |
| Phase Control | Programmable 1- or 2-phase operation in PSI1/PSI2/PSI3 modes with diode emulation - reduces magnetic and switching losses at light load while maintaining fast wake-up response. |
| Thermal Monitoring | Dual NTC inputs (TM/TMS) with internal digitization - provides per-regulator thermal compensation of current sense elements and independent thermal monitoring for safety-critical systems. |
| Oscillator Frequency | Up to 1MHz per phase - allows optimization of efficiency, component size, and transient performance across varying load profiles. |
Pinout & Package
ISL6364CRZ-T is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per the ISL6364 datasheet Rev 2.00 (FN6861), including dedicated SVID, IMON, FB, BOOT, PHASE, TM/TMS, and enable/control signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary supply input | Provides bias power for internal circuitry; requires local decoupling near pin for noise immunity. |
| FB | Feedback input | Accepts differential remote-sense signal to implement precision droop control via current-sense resistor or DCR. |
| IMON | Current monitor output | Delivers analog current representation to CPU for IOUT register reporting and PSI# coordination. |
| SVID[5:0] | SVID data/address bus | 6-bit bidirectional serial interface for VID code, IMAX, TMAX, BOOT, and address offset register programming. |
| PSI# | Power state indicator input | Asynchronous signal from CPU indicating entry into PSI1/PSI2/PSI3 low-power states; triggers phase dropping and diode emulation. |
| TM / TMS | Thermal monitor inputs | Dedicated analog inputs for NTC thermistors; internally digitized for per-regulator thermal compensation of current sense gain. |
Key Features
| Feature | Design Value |
|---|---|
| EAPP Modulation | Patented variable-frequency PWM positioning during transients eliminates beat-frequency oscillation and improves phase-current balance without external compensation. |
| Dual Independent Outputs | VR0 (4-phase) and VR1 (1-phase) operate with separate oscillators, feedback paths, and current sensing - enables independent optimization of CPU core and GPU/system agent rails. |
| Programmable Light-Load Efficiency | Configurable 1-/2-phase operation in PSI1/PSI2/PSI3 with diode emulation - reduces conduction and core losses while preserving fast phase-add recovery time. |
| Differential Remote Sensing | Eliminates ground potential difference between controller and load - ensures ±0.5% regulation accuracy regardless of PCB layout parasitics or shared ground paths. |
| Integrated Thermal Compensation | Digitized NTC readings from TM/TMS pins directly adjust current-sense amplifier gain - maintains droop accuracy across -40°C to +125°C ambient. |
Applications
| Server CPU Voltage Regulation | Laptop CPU/GPU Dual-Rail Power |
|---|---|
Use Scenario: High-density 2U/4U rack servers requiring strict VR12 compliance, multi-phase scalability, and coordinated PSI-state transitions for energy-efficient compute clusters. IC Role / Device Role / Timing Role: Primary dual-rail PWM controller managing core (VR0) and system agent (VR1) voltage domains with SVID-driven dynamic VID and phase-state coordination. Use Value: Enables <1% output deviation under 50A/µs load steps while meeting Intel's ±0.5% system accuracy spec across temperature, reducing need for bulk capacitance. | Use Scenario: Thin-and-light notebooks with discrete GPU and Intel Core processor, where thermal headroom and battery life demand aggressive light-load efficiency. IC Role / Device Role / Timing Role: Dual-output controller delivering tightly regulated core (VR0) and GPU/I/O (VR1) rails with independent PSI-mode entry and diode emulation on both outputs. Use Value: Achieves >90% efficiency at 1A load via 1-phase PSI2 operation and DCR-based current sensing, extending runtime without compromising transient response. |
| Workstation Memory Regulator | High-Performance Desktop Platform |
Use Scenario: DDR4/DDR5 memory subsystems in CAD/CAM workstations requiring stable VDDQ with minimal voltage droop during burst access patterns. IC Role / Device Role / Timing Role: VR0 configured as 4-phase memory regulator with coupled-inductor support and precision droop control via DCR sensing. Use Value: Maintains ±5mV droop tolerance across 0–60A using integrated current-sense resistors and thermal compensation - eliminates external calibration components. | Use Scenario: Enthusiast desktop motherboards supporting overclocked K-series CPUs and discrete graphics, demanding robust overcurrent protection and fast VID updates. IC Role / Device Role / Timing Role: Dual-rail controller implementing VR0 (core) with active phase adding and VR1 (PCIe/VCCIO) with dynamic VID compensation and no-droop regulation. Use Value: Supports sub-100ns VID step response via programmable slew rate and average OCP with channel-current limiting - prevents false trips during extreme overclocking transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output VR12/IMVP7 PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR3567BTRPBF | Single-die dual-output controller with integrated MOSFET drivers; supports up to 6+1 phases; lacks EAPP modulation and uses standard CCM control. | Targets higher-current server VRMs with integrated driver stage; less optimized for ultra-low-power PSI2/PSI3 efficiency. | Choose IR3567BTRPBF when integrating gate drivers is preferred and EAPP-level transient suppression is not required. |
| RT8803AZSP | VR12.5/IMVP8-compliant dual controller with enhanced SVID protocol, but only supports 3+1 phase configuration and no coupled-inductor mode. | Designed for newer Intel 10th–12th gen platforms; lacks TM/TMS thermal digitization and has reduced light-load diode emulation flexibility. | Choose RT8803AZSP for IMVP8 migration paths where VR12.5 features and updated SVID registers are mandatory. |
Compared with IR3567BTRPBF and RT8803AZSP, the ISL6364CRZ-T uniquely delivers EAPP modulation for beat-free transient response, dual NTC digitization for per-rail thermal compensation, and configurable coupled-inductor operation - making it optimal for VR12 designs prioritizing light-load efficiency and droop accuracy over integration density.
Availability
ISL6364CRZ-T is available at Aetrix Electronics and suitable for server CPU voltage regulation, laptop dual-rail power, workstation memory regulation, and high-performance desktop platform applications requiring stable component supply and long-term design continuity.
Supply support for ISL6364CRZ-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 acquired Intersil in 2017 and continues to support its high-performance analog and power management portfolio for computing, industrial, and automotive markets.
The ISL6364CRZ-T belongs to Renesas' VR12/IMVP7-compliant PWM controller product line, engineered specifically for Intel-based client and server platforms requiring precise multi-rail voltage regulation, SVID interoperability, and adaptive light-load efficiency.
FAQ
What is the primary function of the ISL6364CRZ-T in a CPU power delivery system?
The ISL6364CRZ-T serves as a dual-output VR12/IMVP7-compliant PWM controller that manages two independent voltage rails: a 4-phase VR0 output for CPU core or memory regulation, and a 1-phase VR1 output for graphics, system agent, or I/O. It executes SVID-based dynamic VID updates, implements droop control via DCR or resistor sensing, and coordinates phase-state transitions (PSI1/PSI2/PSI3) with the CPU. The ISL6364CRZ-T ensures ±0.5% system accuracy and fast transient response using EAPP modulation.
Does the ISL6364CRZ-T support differential remote voltage sensing, and why is it important?
Yes, the ISL6364CRZ-T supports true differential remote voltage sensing on both VR0 and VR1 outputs. This architecture eliminates ground potential differences between the controller and load point, ensuring measurement integrity despite PCB layout parasitics or shared return paths. As a result, the ISL6364CRZ-T achieves its specified ±0.5% closed-loop system accuracy over load, line, and temperature - critical for meeting Intel VR12 regulation requirements in high-current, high-speed computing platforms.
How does the ISL6364CRZ-T achieve high light-load efficiency?
The ISL6364CRZ-T achieves high light-load efficiency through programmable active phase dropping and diode emulation in PSI1/PSI2/PSI3 modes. In PSI2/PSI3, it operates in single-phase mode with discontinuous conduction emulation, reducing magnetic core losses and synchronous rectifier conduction losses. Combined with thermal compensation of current-sense elements via TM/TMS NTC inputs, this preserves droop accuracy while enabling >90% efficiency at sub-1A loads - a key advantage for mobile and energy-sensitive platforms using the ISL6364CRZ-T.
What current sensing methods does the ISL6364CRZ-T support, and how are they implemented?
The ISL6364CRZ-T supports both precision resistor-based and DCR-based differential current sensing on VR0 and VR1 outputs. For resistor sensing, it integrates programmable current-sense resistors and uses the IMON pin to report analog current to the CPU. For DCR sensing, it measures voltage across the inductor's DCR and feeds the signal into the FB pin to generate a precision droop voltage. Both methods include integrated thermal compensation via digitized NTC readings from TM/TMS pins - ensuring stable current measurement and droop programming across temperature, as confirmed in the ISL6364CRZ-T datasheet FN6861.
Is the ISL6364CRZ-T pin-compatible with other Intersil/Renesas VR12 controllers like the ISL6367?
No, the ISL6364CRZ-T is not pin-compatible with the ISL6367 or other members of the ISL636x family. While functionally related, the ISL6364CRZ-T uses a 48-pin QFN package with unique pin assignments for SVID, IMON, FB, TM/TMS, and phase-specific signals. The ISL6367 uses a different pin count and layout optimized for 6+1-phase operation and integrated drivers. Board-level replacement of the ISL6364CRZ-T requires full schematic and layout revision - confirming that the ISL6364CRZ-T must be selected and routed per its specific footprint and signal routing requirements.
ISL6364CRZ-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 IMVP-7, 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)
ISL6364CRZ-T FAQ
1.How can I place an order for ISL6364CRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6364CRZ-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 ISL6364CRZ-T reliable?
The price and inventory of ISL6364CRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6364CRZ-T is usually 5 days.
3.What payment methods are accepted for ISL6364CRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6364CRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6364CRZ-T?
ISL6364CRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6364CRZ-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 ISL6364CRZ-T?
For technical support, including ISL6364CRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6364CRZ-T requirements.
6.How does Aetrix verify that ISL6364CRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL6364CRZ-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 ISL6364CRZ-T meets industry standards.
7.What is the process for return or replacement of ISL6364CRZ-T?
All ISL6364CRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6364CRZ-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 ISL6364CRZ-T part is unused and in its original packaging.
Return procedure for ISL6364CRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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