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Renesas ISL6366IRZ-T
- Part No.:
- ISL6366IRZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 60-VFQFN Exposed Pad
- Datasheet:
-
ISL6366IRZ-T.pdf
- Description:
- IC REG IMVP-7 VR12 2OUT 60QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,748
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Product details
Overview
ISL6366IRZ-T from Renesas (formerly Intersil) is a dual-output VR12/IMVP7-compliant PWM controller for CPU voltage regulation, featuring 6-phase + 1-phase topology, ±0.5% closed-loop system accuracy over load/line/temperature, EAPP modulation for fast transient response, and SVID bus interface for dynamic VID control. It regulates core/memory (VR0) and graphics/system agent (VR1) rails in high-performance computing platforms.
For engineers reviewing the ISL6366IRZ-T datasheet, ISL6366IRZ-T pinout, ISL6366IRZ-T application, or ISL6366IRZ-T equivalent, key selection considerations include VR12/IMVP7 compliance, dual-output phase allocation (6+1), droop/diode emulation modes, SVID-based PSI#-driven phase dropping, and DCR/resistor current sensing with thermal compensation.
Technical Context
The ISL6366IRZ-T implements two independent PWM control loops: VR0 supports 1–6 phases with coupled-inductor compatibility and active phase adding/dropping via PSI# signaling; VR1 operates as a dedicated single-phase controller with DVS (no-droop) and fast dynamic VID compensation. Both outputs use differential remote sensing and share SVID communication for IMON reporting and register programming.
Its EAPP modulation scheme enables variable-frequency operation during transients to suppress beat-frequency oscillation, while linear pulse distribution ensures balanced phase currents. Current sensing uses either precision external resistors or inductor DCR, with integrated NTC-based thermal monitoring on TM/TMS pins for real-time current-sense compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Compliance | Intel VR12/IMVP7 specification compliant - ensures interoperability with Intel CPUs requiring SVID, PSI#, and precise IOUT reporting. |
| Output Configuration | Dual output: VR0 = 1–6-phase (core/memory), VR1 = 1-phase (graphics/system agent/I/O) - enables independent regulation of critical processor domains. |
| System Accuracy | ±0.5% closed-loop accuracy across load, line, and temperature - guarantees tight VOUT positioning for modern CPU droop requirements. |
| Current Sensing | Programmable resistor or DCR sensing with integrated thermal compensation - enables accurate load-line programming and channel-current balancing without external op-amps. |
| Phase Control | Active phase adding/dropping with diode emulation in PSI1/PSI2/PSI3 - reduces magnetic and switching losses at light load while preserving transient headroom. |
| Modulation Scheme | Enhanced Active Pulse Positioning (EAPP) - delivers faster transient response with fewer bulk capacitors by dynamically adjusting pulse timing and frequency. |
| Oscillator Range | Up to 1MHz per phase - allows optimization of efficiency, size, and ripple trade-offs via external RSET or internal programming. |
Pinout & Package
ISL6366IRZ-T is housed in a 48-pin QFN package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are defined per the official ISL6366 datasheet (FN6964), including dedicated SVID lines (SCLK, SDATA), IMON feedback, VR0/VR1 phase drivers, current sense inputs (CSx, IMONS), thermal monitoring (TM, TMS), and droop configuration (FB, VREF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary power input | Supplies internal LDOs and gate drivers; requires local decoupling for noise immunity in multi-phase switching. |
| IMON | Current monitor output | Reports sensed load current to CPU via SVID IOUT register; enables accurate power-state coordination with PSI#. |
| SCLK/SDATA | SVID serial interface | Enables bidirectional communication with CPU for VID setting, register read/write, and thermal/current status reporting. |
| PSI# | Power state indicator input | Asynchronous signal from CPU indicating entry into PSI1/PSI2/PSI3; triggers automatic phase reduction and diode emulation. |
| FB/VR0-FB, VR1-FB | Feedback inputs | Differential remote sensing inputs for each output; eliminate ground offset errors to maintain ±0.5% regulation accuracy. |
| CS0–CS5, CS6 | Current sense inputs | Accept DCR voltage or resistor-based current signals per phase; feed internal comparators for OCP and balancing logic. |
| TM/TMS | Thermal monitor inputs | Interface with NTC thermistors to digitize temperature and compensate current-sense gain in real time. |
Key Features
| Feature | Design Value |
|---|---|
| VR12/IMVP7 SerialVID Interface | Supports programmable IMAX, TMAX, BOOT, ADDRESS OFFSET registers - enables full CPU-coordinated power management without external firmware. |
| EAPP Modulation | Variable-frequency + evenly distributed pulses during transients - eliminates beat-frequency oscillation and improves phase current balance under dynamic load steps. |
| Dual Thermal Monitoring | Independent TM/TMS inputs with internal ADC and compensation logic - maintains current-sense accuracy across -40°C to +125°C ambient and die temperature ranges. |
| Start-up into Pre-Charged Load | Safe soft-start sequence even when output capacitors are pre-biased - prevents reverse current flow and protects MOSFETs during hot-insertion or rail sequencing. |
| Coupled-Inductor Compatibility | Configurable VR0 operation with interleaved or coupled inductors - reduces output ripple and component count while maintaining phase independence. |
Applications
| Server CPU Voltage Regulation | Laptop Processor Power Delivery |
|---|---|
Use Scenario: Regulating core and graphics rails in dual-socket Xeon servers with strict VR12 timing and SVID handshake requirements. IC Role / Device Role / Timing Role: Primary VR12-compliant PWM controller managing 6-phase VR0 (core) and 1-phase VR1 (GT) with PSI#-driven phase shedding. Use Value: Enables >90% efficiency at 10% load via diode emulation and maintains <±5mV droop error across 0–150A using DCR sensing and thermal compensation. | Use Scenario: Powering quad-core mobile CPUs in ultrabooks where space, light-load efficiency, and thermal management are critical. IC Role / Device Role / Timing Role: Dual-output controller coordinating core (VR0) and system agent (VR1) rails with dynamic VID and fast SVID response. Use Value: Achieves 20% higher light-load efficiency vs. fixed-phase controllers by entering 1-phase PSI2 mode with diode emulation and DVS compensation. |
| Workstation GPU Power Management | High-End Desktop Platform VRM |
Use Scenario: Delivering stable 12V→1.0V conversion for discrete GPUs requiring independent rail control and fast transient recovery. IC Role / Device Role / Timing Role: VR1 output configured as dedicated single-phase controller with no-droop DVS and programmable slew rate for GPU VID transitions. Use Value: Eliminates voltage undershoot during GPU boost events via EAPP's variable-frequency response and remote sensing accuracy. | Use Scenario: Supporting overclocked Intel Core i9 processors with aggressive load-line tuning and multi-phase current sharing. IC Role / Device Role / Timing Role: 6-phase VR0 controller with coupled-inductor support and precision droop programming via FB pin current injection. Use Value: Maintains ±0.5% VOUT accuracy across 0–200A while enabling <50ns phase-add latency after PSI# deassertion for heavy transient handling. |
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 |
|---|---|---|---|
| ISL6367IRZ-T | Same pinout and feature set but adds VR0 phase-doubling capability and enhanced SVID command set (e.g., extended thermal registers). | Required for newer VR12.5 or IMVP7.5 platforms needing additional SVID commands and higher phase-count scalability. | Select ISL6367IRZ-T only if platform firmware requires VR12.5-level SVID extensions or phase-doubler integration. |
| RT8803AZQW | Single-chip 6+1-phase VR12 controller with integrated MOSFET drivers; lacks separate VR1 DVS mode and has fixed 500kHz base frequency. | Better suited for cost-sensitive consumer motherboards where driver integration reduces BOM count but sacrifices VR1 flexibility. | Choose RT8803AZQW when board space is constrained and VR1 does not require no-droop DVS or independent slew-rate control. |
Compared with ISL6366IRZ-T, ISL6367IRZ-T extends SVID functionality for next-gen CPUs, while RT8803AZQW integrates drivers at the expense of VR1 configurability - making ISL6366IRZ-T optimal for designs prioritizing VR1 flexibility, thermal compensation fidelity, and proven VR12/IMVP7 interoperability.
Availability
ISL6366IRZ-T is available at Aetrix Electronics and suitable for server motherboard design, high-end desktop VRMs, laptop CPU power delivery, and workstation GPU power systems requiring stable component supply and long-term lifecycle support.
Supply support for ISL6366IRZ-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) is a global semiconductor leader specializing in microcontrollers, analog, power management, and connectivity solutions for automotive, industrial, and computing markets.
The ISL6366IRZ-T belongs to Renesas' high-precision CPU voltage regulator controller product line, engineered specifically for Intel VR12/IMVP7-compliant platforms requiring SVID-based dynamic power management, multi-phase scalability, and thermally compensated current sensing.
FAQ
What is the primary function of the ISL6366IRZ-T in a CPU power delivery system?
The ISL6366IRZ-T serves as a dual-output VR12/IMVP7-compliant PWM controller that regulates both the microprocessor core/memory rail (VR0, 1–6 phases) and peripheral rail (VR1, 1 phase). It executes SVID communication, PSI#-driven phase management, droop control, and thermally compensated current sensing to meet Intel's stringent voltage positioning and transient response requirements. The ISL6366IRZ-T is essential for accurate, efficient, and coordinated CPU power delivery in modern computing platforms.
Does the ISL6366IRZ-T support both resistor-based and DCR-based current sensing?
Yes, the ISL6366IRZ-T supports both precision external current sense resistors and inductor DCR sensing on all phases. It includes integrated programmable current sense elements and real-time thermal compensation via TM/TMS inputs to maintain accuracy across temperature. This dual-sensing capability allows designers to optimize for cost (DCR) or precision (resistor) without changing the ISL6366IRZ-T footprint or firmware.
How does the ISL6366IRZ-T handle low-power states like PSI1 and PSI2?
The ISL6366IRZ-T responds to the CPU's PSI# signal by automatically reducing active phases: entering 1–2-phase operation in PSI1 and single-phase with diode emulation in PSI2/PSI3. This significantly cuts core and switching losses while preserving fast phase-add capability upon PSI# deassertion. The ISL6366IRZ-T maintains SVID communication and IMON reporting throughout all states, ensuring seamless CPU power-state coordination.
What is the role of the EAPP modulation scheme in the ISL6366IRZ-T?
EAPP (Enhanced Active Pulse Positioning) is Intersil's patented modulation technique used in the ISL6366IRZ-T to improve transient response and phase current balance. It dynamically adjusts PWM pulse timing and frequency during load steps, eliminating beat-frequency oscillation and distributing pulses linearly across phases. This allows the ISL6366IRZ-T to achieve tighter voltage regulation with fewer output capacitors compared to conventional fixed-frequency controllers.
Is the ISL6366IRZ-T compatible with coupled inductors for the VR0 output?
Yes, the ISL6366IRZ-T supports programmable coupled-inductor operation for the VR0 (6-phase) output. This mode reduces output ripple and component count while maintaining independent phase control and current balancing. Configuration is done via dedicated pins and SVID registers, and the ISL6366IRZ-T retains full droop programming, thermal compensation, and phase-dropping functionality in coupled-inductor mode.
ISL6366IRZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 60-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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-QFN (7x7)
ISL6366IRZ-T FAQ
1.How can I place an order for ISL6366IRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6366IRZ-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 ISL6366IRZ-T reliable?
The price and inventory of ISL6366IRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6366IRZ-T is usually 5 days.
3.What payment methods are accepted for ISL6366IRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6366IRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6366IRZ-T?
ISL6366IRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6366IRZ-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 ISL6366IRZ-T?
For technical support, including ISL6366IRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6366IRZ-T requirements.
6.How does Aetrix verify that ISL6366IRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL6366IRZ-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 ISL6366IRZ-T meets industry standards.
7.What is the process for return or replacement of ISL6366IRZ-T?
All ISL6366IRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6366IRZ-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 ISL6366IRZ-T part is unused and in its original packaging.
Return procedure for ISL6366IRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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