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Renesas ISL6568IRZ-TR5184
- Part No.:
- ISL6568IRZ-TR5184
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL6568IRZ-TR5184.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,447
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Product details
Overview
ISL6568IRZ-TR5184 from Renesas (formerly Intersil) is a two-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 0.8V–1.85V output range with ±0.5% system accuracy over temperature, DCR + rDS(ON) dual-current sensing, and selectable 225–275 kHz switching frequency via external resistor.
For engineers reviewing the ISL6568IRZ-TR5184 datasheet, ISL6568IRZ-TR5184 pinout, ISL6568IRZ-TR5184 application, or ISL6568IRZ-TR5184 equivalent, this device delivers verified multi-phase channel current balancing, differential remote voltage sensing, programmable VID offset, and multi-tiered overvoltage/overcurrent protection - all in a thermally enhanced 32-pin 5×5 QFN package rated for -40°C to +85°C operation.
Technical Context
The ISL6568IRZ-TR5184 implements interleaved two-phase PWM control with adaptive non-overlap timing (10 ns UGATE/LGATE turn-on delay), internal sawtooth oscillator, and dynamic VID-on-the-fly capability. Its error amplifier features 96 dB DC gain and 20 MHz gain-bandwidth product for stable loop response across load transients.
It integrates dual current-sensing paths: lossless inductor DCR sensing (via ISUM/IREF/ICOMP) for load-line droop and overcurrent protection, and rDS(ON)-based sensing (via ISEN1/ISEN2) for per-channel current balance. Protection includes clamping-based overvoltage response, 80–84% VID undervoltage threshold, and open-sense-line detection via VDIFF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | -40°C to +85°C - qualified for industrial-grade CPU VRM applications requiring extended thermal margin. |
| Switching Frequency | 225–275 kHz (typ. 250 kHz) - set by FS-to-ground resistor; enables optimized trade-off between efficiency and EMI in 2-phase designs. |
| System Accuracy | ±0.5% over temp (VID = 1.0–1.85 V) - ensures tight core voltage regulation under thermal stress and load variation. |
| Current Sensing | DCR + rDS(ON) dual method - DCR path provides accurate load-line droop and OCP; rDS(ON) path enables precise per-phase current matching without sense resistors. |
| Gate Drive Bias | 5V to 12V on PVCC - supports wide-range MOSFET selection including logic-level and standard-threshold devices. |
| VID Compatibility | Intel VRM9, VRM10, and AMD Hammer DAC codes - selected via VID12.5 pin configuration; enables single-design reuse across multiple CPU platforms. |
| Protection Features | OVP clamping (VID + 125–175 mV), UVP (80–84% VID), OCSET trip at 100 µA, open-sense-line detection - safeguards CPU during fault conditions without external circuitry. |
Pinout & Package
ISL6568IRZ-TR5184 is housed in a RoHS-compliant, thermally enhanced 32-lead QFN package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad. The package supports high-power dissipation (θJA = 35°C/W, θJC = 5°C/W) and Pb-free reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UGATE1 / UGATE2 | Upper MOSFET gate drive outputs | Drive high-side N-channel FETs with adaptive shoot-through prevention; max 66% duty cycle per phase. |
| LGATE1 / LGATE2 | Lower MOSFET gate drive outputs | Drive synchronous rectifiers; sink/source resistance <1.35 Ω ensures fast switching and low conduction loss. |
| VSEN / RGND | Differential remote sense inputs | Enable Kelvin sensing at CPU VRM output; reject ground noise up to ±1.1 V offset before open-line fault activation. |
| ISEN1 / ISEN2 | rDS(ON) current sense inputs | Sample lower-FET conduction voltage to generate per-phase current signals for real-time channel balancing. |
| ISUM / IREF / ICOMP | DCR current sense interface | Support lossless inductor DCR sensing: ISUM (−), IREF (+), ICOMP (output); enable droop programming and OCP. |
| VID0–VID4, VID12.5 | Digital voltage identification inputs | Decode 5-bit VID code into reference voltage; VID12.5 selects VRM9/VRM10/AMD mode via external resistor. |
| OCSET | Overcurrent threshold setting | 100 µA current source sets OCP trip point; voltage comparison against ISUM triggers immediate channel shutdown. |
| PGOOD | Power-good status output | Open-drain signal pulled low during UV/OV faults, soft-start, or reset; confirms stable regulation within ±5% of target. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2-phase PWM + dual gate drivers | Reduces BOM count by eliminating discrete driver ICs; enables compact 2-phase VRM layout with minimal trace inductance. |
| Differential remote voltage sensing | Compensates for PCB IR drop between VRM and CPU; maintains ±0.5% regulation accuracy at point-of-load despite ground shifts. |
| DCR + rDS(ON) dual current sensing | Eliminates need for power-wasting shunt resistors while achieving <±3% channel current mismatch across 0–100% load. |
| Programmable reference offset (OFS) | Enables ±150 mV DC offset via single external resistor - supports custom load-line slopes or margining without redesign. |
| Digital soft-start and dynamic VID | Gradually ramps output during power-up; allows real-time VID updates during CPU state transitions (e.g., C-states). |
| Multi-tiered overvoltage protection | Clamps output by turning on lower FETs when VSEN exceeds VID+150 mV; prevents CPU damage during transient overvoltage events. |
Applications
| Desktop CPU Power Delivery | Server Processor VRM |
|---|---|
|
Use Scenario: Dual-phase 1.1–1.35V core supply for AMD Athlon 64/FX or Intel Pentium 4 processors in ATX desktop motherboards. IC Role / Device Role / Timing Role: Primary PWM controller managing phase interleaving, VID decoding, and per-phase current balancing. Use Value: Enables stable 30–60 A output with <1% voltage deviation under 10 A/µs load steps, using only two external inductors and no current-sense resistors. |
Use Scenario: High-reliability 2-phase VRM for dual-socket Xeon or Opteron servers with thermal derating requirements. IC Role / Device Role / Timing Role: Industrial-grade voltage regulator controller supporting -40°C to +85°C ambient and continuous 45 A/channel operation. Use Value: Delivers validated thermal performance (θJC = 5°C/W) and open-sense-line fault detection to prevent CPU brownout in dense server chassis. |
| Laptop CPU Voltage Regulator | Embedded x86 Platform Power |
|
Use Scenario: Compact 2-phase core supply for mobile Pentium M or Turion processors in space-constrained notebook designs. IC Role / Device Role / Timing Role: Integrated controller providing VID-on-the-fly support for dynamic frequency scaling and deep C-state entry. Use Value: Achieves <90% peak efficiency at 20 A with 5×5 mm QFN footprint; eliminates need for separate driver ICs and reduces PCB area by 35%. |
Use Scenario: Power management for embedded x86 modules (e.g., COM Express Type 6) requiring VRM9/VRM10 compliance. IC Role / Device Role / Timing Role: Configurable VRM controller supporting both Intel and AMD VID tables via hardware-selectable VID12.5 pin. Use Value: Single BOM supports dual-platform designs; eliminates firmware VID table switching and simplifies qualification across CPU vendors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar two-phase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6568CRZ-TR5184 | 0°C to +70°C operating range; identical electrical specs and pinout. | Restricted to commercial-temperature environments (e.g., consumer desktops, non-ruggedized embedded). | Select when ambient temperature stays below 70°C and cost sensitivity outweighs industrial temp margin. |
| RT8803AZSP | Single-chip 2-phase controller with integrated drivers; supports 300–1000 kHz switching, but lacks DCR sensing and VID12.5 AMD mode. | Targeted at newer Intel Core i-series VR12/VR12.5 platforms; not compatible with VRM9/VRM10/AMD Hammer VID tables. | Choose for higher-frequency, lower-inductance designs where AMD or legacy Intel VID support is unnecessary. |
Compared with ISL6568IRZ-TR5184, the ISL6568CRZ-TR5184 offers identical functionality at lower cost but sacrifices industrial temperature range, while the RT8803AZSP provides higher switching flexibility and integration yet omits critical legacy VID compatibility and dual-method current sensing required for VRM9/VRM10/AMD systems.
Availability
ISL6568IRZ-TR5184 is available at Aetrix Electronics and suitable for desktop motherboard design, server VRM development, and embedded x86 platform power delivery requiring stable component supply, long-term lifecycle assurance, and industrial-temperature operation.
Supply support for ISL6568IRZ-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 Corporation (acquired Intersil in 2017) is a global semiconductor leader specializing in analog, power management, and embedded processing solutions for industrial, automotive, and computing markets.
The ISL6568IRZ-TR5184 belongs to Renesas' high-performance CPU power controller product line, engineered specifically for multi-phase VRM applications demanding precision voltage regulation, robust fault protection, and seamless compatibility with Intel and AMD microprocessor specifications.
FAQ
What is the operating temperature range of the ISL6568IRZ-TR5184?
The ISL6568IRZ-TR5184 is rated for industrial operation from -40°C to +85°C ambient temperature. This extended range ensures reliable performance in server, industrial PC, and embedded applications where thermal margins exceed commercial-grade limits. The device's thermal resistance (θJC = 5°C/W) and junction temperature limit of +150°C further support sustained high-load operation under elevated ambient conditions. ISL6568IRZ-TR5184 maintains full specification compliance across this entire range.
How does the ISL6568IRZ-TR5184 support both Intel and AMD microprocessors?
The ISL6568IRZ-TR5184 supports Intel VRM9, VRM10, and AMD Hammer VID protocols through hardware-selectable DAC decoding. The VID12.5 pin determines active mode: connection to +5V via 5 kΩ selects AMD Hammer, 50 kΩ selects VRM9, and voltage <3 V selects VRM10. All VID pins accept TTL logic levels and feature internal 40 µA pull-ups. ISL6568IRZ-TR5184 decodes the 5-bit VID code into precise reference voltages (e.g., 0.800–1.550 V for AMD) with ±0.5% system accuracy.
What current sensing methods does the ISL6568IRZ-TR5184 use, and why are both needed?
The ISL6568IRZ-TR5184 employs dual independent current sensing: lossless inductor DCR sensing (via ISUM/IREF/ICOMP) for load-line droop and overcurrent protection, and rDS(ON) sensing (via ISEN1/ISEN2) for per-phase current balancing. DCR sensing provides accurate total current and OCP without power loss; rDS(ON) sensing enables real-time channel matching (<±3% mismatch) without adding resistive losses. ISL6568IRZ-TR5184 uses both to achieve optimal efficiency, stability, and thermal distribution in 2-phase VRMs.
Can the ISL6568IRZ-TR5184 be configured for single-phase operation?
Yes, the ISL6568IRZ-TR5184 can operate in single-phase mode by connecting both BOOT2 and PHASE2 pins to +12V. This disables channel 2, causing PWM2 to remain inactive while PWM1 controls the sole power stage. All control functions-including VID decoding, remote sensing, and protection-remain fully operational. ISL6568IRZ-TR5184 retains its full feature set in single-phase mode, making it suitable for lower-current applications or design prototyping before scaling to two phases.
What protection features are built into the ISL6568IRZ-TR5184?
The ISL6568IRZ-TR5184 includes multi-layer protection: overvoltage clamping (turns on lower FETs when VSEN exceeds VID+150 mV), undervoltage lockout (trips at 80–84% VID), overcurrent shutdown (via OCSET/ISUM comparison), open-sense-line detection (VDIFF threshold), and thermal shutdown (+160°C trip, +100°C recovery). PGOOD monitors all protections and asserts low during faults. ISL6568IRZ-TR5184 implements these without external components, ensuring rapid, deterministic response to system faults.
ISL6568IRZ-TR5184 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-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:
- 0.84V ~ 1.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
ISL6568IRZ-TR5184 FAQ
1.How can I place an order for ISL6568IRZ-TR5184 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6568IRZ-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 ISL6568IRZ-TR5184 reliable?
The price and inventory of ISL6568IRZ-TR5184 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6568IRZ-TR5184 is usually 5 days.
3.What payment methods are accepted for ISL6568IRZ-TR5184?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6568IRZ-TR5184 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6568IRZ-TR5184?
ISL6568IRZ-TR5184 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6568IRZ-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 ISL6568IRZ-TR5184?
For technical support, including ISL6568IRZ-TR5184 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6568IRZ-TR5184 requirements.
6.How does Aetrix verify that ISL6568IRZ-TR5184 is sourced from the original manufacturer or authorized distributors?
All ISL6568IRZ-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 ISL6568IRZ-TR5184 meets industry standards.
7.What is the process for return or replacement of ISL6568IRZ-TR5184?
All ISL6568IRZ-TR5184 units undergo pre-shipment inspection (PSI). If there is an issue with ISL6568IRZ-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 ISL6568IRZ-TR5184 part is unused and in its original packaging.
Return procedure for ISL6568IRZ-TR5184:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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