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Renesas ISL6566IRZA-TR5184
- Part No.:
- ISL6566IRZA-TR5184
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL6566IRZA-TR5184.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,984
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Product details
Overview
ISL6566IRZA-TR5184 from Renesas (formerly Intersil) is a three-phase buck PWM controller with integrated high- and low-side MOSFET drivers, designed for precision core voltage regulation in Intel VRM9/VRM10 and AMD Hammer microprocessor power delivery systems. It supports 1–3-phase operation, delivers ±0.5% system accuracy over temperature, uses dual DCR/rDS(ON) current sensing for load-line droop and channel-current balance, and operates up to 1.5 MHz per phase.
For engineers reviewing the ISL6566IRZA-TR5184 datasheet, ISL6566IRZA-TR5184 pinout, ISL6566IRZA-TR5184 application, or ISL6566IRZA-TR5184 equivalent, key selection criteria include its -40°C to +85°C industrial temperature range, 40-pin 6×6 mm QFN package, integrated gate drivers with 1.25 Ω upper-source drive resistance, programmable VID decoding, and combined DCR + rDS(ON) current sensing architecture.
Technical Context
The ISL6566IRZA-TR5184 implements interleaved three-phase PWM control using adaptive non-overlap timing (10 ns UGATE/LGATE turn-on dead time) and a shared sawtooth oscillator synchronized across phases. Its error amplifier features 96 dB DC gain and 20 MHz gain-bandwidth product, enabling stable compensation of high-bandwidth VRM loops.
Current sensing combines lossless inductor DCR sampling (for load-line voltage positioning and overcurrent protection) with rDS(ON) sampling at each PHASE node (for real-time channel-current balancing). The controller decodes 5–6-bit VID inputs under VRM9, VRM10, or AMD Hammer protocols via VRM10 and VID12.5 pin configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade microprocessor VRM applications requiring extended thermal margin. |
| Switching Frequency | Up to 1.5 MHz per phase - enables compact magnetics and high transient response in space-constrained server/desktop CPU power stages. |
| System Accuracy | ±0.5% (VID = 1.0–1.85 V), ±0.8% (VID = 0.8–1.0 V) - ensures tight core voltage regulation across load and temperature for modern CPUs. |
| Gate Drive Bias Range | 5 V to 12 V - supports optimal RDS(ON) utilization and switching loss trade-offs for discrete or integrated power stages. |
| OCSET Trip Current | 100 µA ±7% - sets overcurrent threshold via external resistor; enables precise, scalable current-limit programming independent of MOSFET parameters. |
| Droop Programming | Inductor DCR-based - provides accurate, temperature-compensated load-line slope without sense resistors or additional ICs. |
| VID Compatibility | Intel VRM9.0, VRM10.0, AMD Hammer - single controller supports multiple CPU families via pin-strapped DAC mode selection. |
Pinout & Package
ISL6566IRZA-TR5184 is housed in a thermally enhanced 40-lead 6×6 mm QFN package (PKG DWG # L40.6x6) with exposed thermal pad. Pin functions are validated per FN9178 Rev 4.00 datasheet, including dedicated ISEN1–3, UGATE1–3, LGATE1–3, and PHASE1–3 terminals for full three-phase implementation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID4, VID12.5 | DAC input logic | Encode microprocessor core voltage setpoint; VID12.5 + VRM10 select AMD/VRM9/VRM10 protocol. |
| UGATE1–3, LGATE1–3 | MOSFET gate drivers | Integrated 12 V-capable drivers with <1.35 Ω sink/source resistance reduce external component count and layout complexity. |
| ISEN1–3 | rDS(ON) current sense input | Samples lower-FET conduction voltage to enable per-channel current balancing without shunt resistors. |
| ISUM, IREF, ICOMP | DCR current sense interface | Supports lossless inductor DCR sensing for droop and overcurrent protection; eliminates sense-resistor power loss. |
| VSEN / RGND | Differential remote sense inputs | Compensate for PCB IR drop between VRM output and CPU VDD/VSS pins; improve regulation accuracy at point-of-load. |
| ENLL | Enable input | 0.66 V threshold with 100 mV hysteresis - allows clean, noise-immune power sequencing control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3-phase PWM + gate drivers | Reduces BOM count by eliminating separate driver ICs and associated level-shifters, saving >12 components vs. discrete controller+driver solutions. |
| Dual-method current sensing | DCR sensing for droop/OC protection + rDS(ON) sensing for channel balance - achieves both precision load-line control and <±3% inter-phase current mismatch. |
| Dynamic VID support | Enables real-time voltage scaling during CPU P-state transitions without external DAC or sequencer intervention. |
| Multi-tier overvoltage protection | Clamps output by turning on lower MOSFETs when VSEN exceeds VID + 150 mV; prevents CPU damage during transient faults. |
| Selectable phase count (1/2/3) | Determined by PVCC2/PVCC3 connection state - allows single design to scale across low-, mid-, and high-power CPU platforms. |
Applications
| Server CPU Power Delivery | Desktop Processor VRM |
|---|---|
Use Scenario: High-current, multi-core Xeon or EPYC processor power stage delivering 30–100 A at 0.8–1.5 V. IC Role / Device Role / Timing Role: Three-phase PWM controller with integrated drivers, DCR-based droop, and rDS(ON)-based current balancing. Use Value: Enables <±2% channel current mismatch and <1% output voltage deviation under dynamic load steps up to 50 A/µs. |
Use Scenario: ATX motherboard VRM supplying Core i7/i9 processors with dynamic VID updates during Turbo Boost. IC Role / Device Role / Timing Role: Programmable VRM9/VRM10-compliant controller with digital soft-start and PGOOD monitoring. Use Value: Supports seamless VID transitions with <10 µs settling time and maintains ±0.5% regulation across -40°C to +85°C ambient. |
| Workstation GPU Core Rail | AMD Ryzen Desktop Platform |
Use Scenario: High-efficiency 3-phase core supply for professional GPU ASICs requiring tight voltage tolerance and thermal derating. IC Role / Device Role / Timing Role: Industrial-temp (-40°C to +85°C) controller with remote sensing and NTC-compatible thermal compensation. Use Value: Achieves 92% peak efficiency at 50 A and sustains regulation during 100°C junction temperature operation. |
Use Scenario: AM4 socket motherboard delivering adaptive voltage to Ryzen 5000-series CPUs with AMD Hammer VID protocol. IC Role / Device Role / Timing Role: Pin-configured AMD Hammer DAC decoder with differential remote sensing and adjustable offset. Use Value: Delivers exact VID-mapped voltages (e.g., 1.200 V @ VID=01110) with <±1.5 mV error across production units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase VRM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6566CRZ-TR5184 | 0°C to +70°C operating range; identical electrical specs and pinout. | Restricted to commercial-temperature computing applications (e.g., consumer desktops). | Select ISL6566CRZ-TR5184 only if ambient temperature remains below 70°C and RoHS compliance is required. |
| RT8803AZSP | Single-chip 3-phase controller with integrated drivers; supports VRM10/11 but lacks AMD Hammer VID decoding. | Requires external VID translation for AMD platforms; no rDS(ON) current sensing - relies solely on DCR. | Choose RT8803AZSP for Intel-only designs needing higher integration density and lower quiescent current (2.5 mA vs. 15 mA). |
Compared with ISL6566IRZA-TR5184, ISL6566CRZ-TR5184 trades industrial temperature range for cost-sensitive commercial use, while RT8803AZSP offers tighter integration but sacrifices AMD compatibility and dual-sensing capability critical for high-accuracy current sharing.
Availability
ISL6566IRZA-TR5184 is available at Aetrix Electronics and suitable for server CPU power delivery, workstation GPU core rails, AMD Ryzen desktop platforms, and industrial embedded computing applications requiring stable component supply and long-term lifecycle support.
Supply support for ISL6566IRZA-TR5184 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 acquired Intersil in 2017 and maintains full technical and manufacturing continuity for the ISL6566 family. Renesas is a global semiconductor leader specializing in analog, power, and embedded processing solutions.
The ISL6566 product line was developed specifically for high-efficiency, multi-phase CPU/GPU core voltage regulation in enterprise and high-performance computing platforms, emphasizing precision, thermal robustness, and protocol flexibility.
FAQ
What is the operating temperature range of the ISL6566IRZA-TR5184?
The ISL6566IRZA-TR5184 is rated for -40°C to +85°C ambient operation, qualifying it for industrial-grade microprocessor power delivery in servers, workstations, and ruggedized computing platforms. This extended range exceeds commercial alternatives like the ISL6566CRZ-TR5184 (-40°C to +70°C), ensuring reliable startup and regulation under thermal stress conditions where CPU VRMs operate near thermal limits.
How does the ISL6566IRZA-TR5184 implement current sensing for channel balancing?
The ISL6566IRZA-TR5184 uses rDS(ON) current sensing on each PHASE node (via ISEN1–3 pins) to sample lower-MOSFET conduction voltage during forced-off time, enabling real-time per-channel current measurement. This method avoids power loss from shunt resistors and achieves <±3% inter-phase current mismatch across load and temperature - a key requirement for thermal derating in multi-phase CPU VRMs.
Which voltage identification protocols does the ISL6566IRZA-TR5184 support?
The ISL6566IRZA-TR5184 supports Intel VRM9.0, VRM10.0, and AMD Hammer VID protocols through hardware-selectable DAC decoding. VRM10 and VID12.5 pins configure the active standard: VRM10 high selects VRM10.0; VRM10 low + VID12.5 high selects VRM9.0; VRM10 low + VID12.5 low selects AMD Hammer. This eliminates firmware or external logic for multi-platform compatibility.
What is the purpose of the ISUM, IREF, and ICOMP pins on the ISL6566IRZA-TR5184?
ISUM, IREF, and ICOMP form the DCR current-sense interface: ISUM is the negative input, IREF the positive input, and ICOMP the output of the DCR amplifier. Connecting external RC networks between them generates a droop voltage proportional to inductor DCR, enabling accurate load-line programming and overcurrent protection without sense resistors - reducing power loss and board area in high-current VRMs.
Does the ISL6566IRZA-TR5184 integrate MOSFET gate drivers?
Yes, the ISL6566IRZA-TR5184 integrates three independent high- and low-side gate drivers (UGATE1–3, LGATE1–3) capable of 5–12 V bias operation. Each driver features <1.35 Ω sink/source resistance and adaptive non-overlap timing (10 ns), eliminating external driver ICs and level shifters. This integration reduces component count by ≥12 parts and improves layout reliability in dense VRM designs.
ISL6566IRZA-TR5184 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel VRM9, VRM10, AMD Hammer Applications
- Voltage - Input:
- 3V ~ 12V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.8V ~ 1.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-QFN (6x6)
ISL6566IRZA-TR5184 FAQ
1.How can I place an order for ISL6566IRZA-TR5184 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6566IRZA-TR5184 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 ISL6566IRZA-TR5184 reliable?
The price and inventory of ISL6566IRZA-TR5184 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6566IRZA-TR5184 is usually 5 days.
3.What payment methods are accepted for ISL6566IRZA-TR5184?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6566IRZA-TR5184 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6566IRZA-TR5184?
ISL6566IRZA-TR5184 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6566IRZA-TR5184 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 ISL6566IRZA-TR5184?
For technical support, including ISL6566IRZA-TR5184 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6566IRZA-TR5184 requirements.
6.How does Aetrix verify that ISL6566IRZA-TR5184 is sourced from the original manufacturer or authorized distributors?
All ISL6566IRZA-TR5184 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 ISL6566IRZA-TR5184 meets industry standards.
7.What is the process for return or replacement of ISL6566IRZA-TR5184?
All ISL6566IRZA-TR5184 units undergo pre-shipment inspection (PSI). If there is an issue with ISL6566IRZA-TR5184, 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 ISL6566IRZA-TR5184 part is unused and in its original packaging.
Return procedure for ISL6566IRZA-TR5184:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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