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Renesas ISL6568CRZ-TKR5184
- Part No.:
- ISL6568CRZ-TKR5184
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL6568CRZ-TKR5184.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,081
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Product details
Overview
ISL6568CRZ-TKR5184 from Intersil is a two-phase buck PWM controller with integrated MOSFET drivers, designed for precision core voltage regulation in Intel VRM9/VRM10 and AMD Hammer microprocessor power delivery systems. It supports 1–2-phase operation, delivers ±0.5% system accuracy over temperature, uses dual DCR/rDS(ON) current sensing for droop control and channel balancing, and operates up to 1.5 MHz per phase.
For engineers reviewing the ISL6568CRZ-TKR5184 datasheet, ISL6568CRZ-TKR5184 pinout, ISL6568CRZ-TKR5184 application, or ISL6568CRZ-TKR5184 equivalent, key selection criteria include its integrated gate drivers (5–12 V bias), differential remote sensing (VDIFF output), programmable VID decoding (6-bit DAC), lossless current sensing architecture, and multi-tiered OVP/UVP/OCP protection for high-reliability CPU VRMs.
Technical Context
The ISL6568CRZ-TKR5184 implements interleaved two-phase PWM control using a shared sawtooth oscillator and adaptive non-overlap logic to prevent shoot-through. Its error amplifier features 96 dB DC gain and 20 MHz gain-bandwidth product, enabling stable loop response with external R-C compensation on FB/COMP/REF.
Current sensing combines continuous inductor DCR sampling (for load-line droop and overcurrent) with cycle-by-cycle rDS(ON) sampling on LGATE1/LGATE2 (for precise channel-current balance). VID12.5 pin selection enables hardware-configurable DAC mapping across VRM9, VRM10, or AMD Hammer voltage tables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | 0°C to +70°C - validated for commercial-grade motherboard and server VRM applications |
| Package | 32-lead 5×5 mm QFN - exposes thermal pad for PCB heat sinking; θJA = 35°C/W |
| Switching Frequency | Up to 1.5 MHz per phase - set via FS pin resistor; typical 250 kHz at RT = 100 kΩ |
| System Accuracy | ±0.5% over temp (VID = 1.0–1.85 V) - ensures tight CPU core voltage tolerance under dynamic load |
| Gate Drive Voltage | 5 V to 12 V on PVCC - configurable upper/lower driver bias for optimal MOSFET switching efficiency |
| Overcurrent Threshold | 100 µA on OCSET pin - sets precise current limit via external resistor; ±5 mV accuracy vs ISUM |
| Droop Control | DCR-based load line programming - enables accurate VOUT positioning without sense resistors |
Pinout & Package
ISL6568CRZ-TKR5184 is housed in a 32-lead, 5 mm × 5 mm, 0.5 mm pitch QFN package (Intersil drawing L32.5x5) with exposed thermal pad. Pin 1 is top-left corner (VID1), pin 32 is bottom-right (RGND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UGATE1 / UGATE2 | Upper MOSFET gate drive outputs | Drive high-side N-channel FETs; include adaptive dead-time control to prevent shoot-through |
| LGATE1 / LGATE2 | Lower MOSFET gate drive outputs | Drive synchronous rectifier FETs; enable rDS(ON) current sampling during conduction |
| VSEN / RGND | Differential remote sense inputs | Measure true load voltage at CPU pads; reject ground bounce and PCB IR drop |
| ISEN1 / ISEN2 | rDS(ON) current sense inputs | Sample lower-FET conduction voltage to compute per-phase current for balancing |
| ISUM / IREF / ICOMP | DCR current sense interface | Implement lossless inductor current sensing: ISUM sums phase currents, IREF connects to output node, ICOMP provides droop voltage |
| VID0–VID4, VID12.5 | Microprocessor voltage ID inputs | Decode 5–6 bit digital codes into analog reference; VID12.5 selects VRM9/VRM10/AMD Hammer DAC table |
| ENLL | Enable input with 0.66 V threshold | Logic-level enable/disable with 100 mV hysteresis; internal 1 µA pull-up to 5 V |
| PGOOD | Power-good open-drain output | Asserts high only after soft-start completion and when VOUT stays within ±5% UV/OV window |
Key Features
| Feature | Design Value |
|---|---|
| Dual current sensing | Simultaneous DCR (droop/OCP) and rDS(ON) (channel balance) sensing eliminates need for discrete sense resistors |
| Differential remote sensing | VSEN/RGND pair rejects up to 100 mV of ground potential difference between IC and CPU, ensuring accurate regulation |
| Dynamic VID-on-the-fly | Supports real-time voltage scaling during CPU state transitions without reset or reconfiguration |
| Multi-tiered overvoltage protection | Clamps output by turning on lower FETs when VSEN exceeds VID+150 mV; includes fast OVP during disable |
| Adjustable reference offset | OFS pin sinks or sources 50 µA to generate ±100 mV offset via external resistor - fine-tunes load-line slope |
Applications
| Server CPU Power Delivery | Desktop VRM Modules |
|---|---|
Use Scenario: Dual-socket Xeon or EPYC platforms requiring tightly regulated 0.8–1.5 V core voltage at >100 A peak load. IC Role / Device Role / Timing Role: Two-phase PWM controller managing parallel buck stages with interleaved timing and synchronized current sharing. Use Value: Enables <1% output voltage deviation under 50 A/µs load transients while reducing input/output capacitor count by 40% vs single-phase design. | Use Scenario: ATX motherboard VRM delivering scalable core voltage to Intel Core i7/i9 or AMD Ryzen processors. IC Role / Device Role / Timing Role: Primary voltage regulator IC interfacing directly with CPU's VID bus and controlling discrete DrMOS or discrete FETs. Use Value: Supports dynamic VID changes during C-states and Turbo Boost, maintaining ±0.5% regulation accuracy across -20°C to +70°C ambient. |
| Workstation Graphics VRM | High-Performance Computing Node |
Use Scenario: GPU power delivery on PCIe add-in cards where space constraints demand high-density, low-component-count solutions. IC Role / Device Role / Timing Role: Two-phase controller driving dual-phase buck converters with integrated gate drivers and thermal shutdown. Use Value: Eliminates external driver ICs and reduces BOM count by 6 components per phase, lowering layout complexity and EMI emissions. | Use Scenario: AI accelerator card requiring robust, fault-tolerant core power with redundant monitoring and fast OCP response. IC Role / Device Role / Timing Role: Fault-aware VRM controller providing PGOOD signaling, open-sense-line detection, and thermal shutdown at +160°C. Use Value: Detects broken sense traces within 10 µs and disables output before CPU damage occurs, meeting ASIL-B functional safety expectations. |
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 |
|---|---|---|---|
| IR35201MTRPBF | Single-chip digital controller with PMBus interface; supports up to 4 phases; no integrated gate drivers - requires external DrMOS or drivers | Used in systems requiring telemetry, margining, and firmware-updatable VRM profiles | Choose IR35201MTRPBF when digital control, telemetry, and multi-phase scalability outweigh analog simplicity and cost |
| TPS53679RSLR | Analog controller with integrated 6-A drivers; supports 3–6 phases; fixed 0.6 V reference; no VID decoding - requires external DAC or voltage-setting resistors | Targeted at ASIC/FPGA core rails where VID protocol is unnecessary and higher phase count is required | Choose TPS53679RSLR when >2 phases, higher integrated drive strength, or simplified fixed-voltage setup is needed |
Compared with IR35201MTRPBF and TPS53679RSLR, the ISL6568CRZ-TKR5184 offers native VID decoding, integrated 12-V gate drivers, and dual DCR/rDS(ON) sensing in a cost-optimized analog solution - ideal for legacy x86 CPU VRMs where digital overhead is unnecessary.
Availability
ISL6568CRZ-TKR5184 is available at Aetrix Electronics and suitable for server CPU power delivery, desktop VRM modules, workstation graphics VRM, and high-performance computing node applications requiring stable component supply and long-term industrial availability.
Supply support for ISL6568CRZ-TKR5184 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
Intersil (now part of Renesas Electronics) is a semiconductor company specializing in high-performance analog and power management ICs for computing, industrial, and communications markets.
The ISL6568CRZ-TKR5184 belongs to Intersil's VRM controller product line, engineered specifically for precision, multi-phase CPU core voltage regulation with integrated gate drivers and advanced protection for Intel and AMD microprocessors.
FAQ
What is the operating temperature range for the ISL6568CRZ-TKR5184?
The ISL6568CRZ-TKR5184 is specified for 0°C to +70°C ambient operation. This commercial-grade temperature range aligns with standard motherboard and server board environments where airflow and thermal design ensure junction temperatures remain below the +150°C maximum. The device includes thermal shutdown at +160°C and recovery at +100°C, providing robust protection against transient overheating events during ISL6568CRZ-TKR5184 operation.
Does the ISL6568CRZ-TKR5184 support both Intel and AMD microprocessor voltage identification protocols?
Yes, the ISL6568CRZ-TKR5184 supports Intel VRM9, VRM10, and AMD Hammer VID protocols via hardware-selectable DAC mapping. The VID12.5 pin determines active mode: connect to +5 V through 50 kΩ for VRM9, 5 kΩ for AMD Hammer, or leave below 3 V for VRM10. All VID pins accept TTL logic levels and feature internal 40 µA pull-ups. This flexibility allows one ISL6568CRZ-TKR5184 design to serve multiple CPU families without firmware changes.
How does the ISL6568CRZ-TKR5184 implement current sensing without sense resistors?
The ISL6568CRZ-TKR5184 uses two complementary lossless methods: DCR sensing across output inductors (via ISUM/IREF/ICOMP pins) for load-line droop and overcurrent protection, and rDS(ON) sensing across lower MOSFETs (via ISEN1/ISEN2 pins) for per-phase current measurement and balancing. Both techniques eliminate discrete current-sense resistors, reducing power loss, board area, and BOM cost while maintaining ±5 mV accuracy in ISL6568CRZ-TKR5184 current monitoring.
What is the purpose of the OFS pin on the ISL6568CRZ-TKR5184?
The OFS pin on the ISL6568CRZ-TKR5184 generates a precision 50 µA current that flows through an external resistor to create a programmable DC offset voltage between FB and VDIFF. Connecting the resistor to GND yields negative offset (e.g., -100 mV); connecting to VCC yields positive offset (e.g., +100 mV). This adjusts the effective load line slope independently of DCR values, enabling fine-tuning of ISL6568CRZ-TKR5184 output voltage droop behavior for specific CPU load-line requirements.
Can the ISL6568CRZ-TKR5184 operate in single-phase mode?
Yes, the ISL6568CRZ-TKR5184 can be configured for single-phase operation by connecting both BOOT2 and PHASE2 pins to +12 V. This disables phase-2 gate drivers and PWM logic, causing the controller to operate exclusively on PHASE1 with full 66.6% duty cycle capability. All current sensing, protection, and VID functions remain fully active. This mode simplifies designs where lower current capacity or board space constraints make two-phase implementation impractical for the ISL6568CRZ-TKR5184 application.
ISL6568CRZ-TKR5184 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
ISL6568CRZ-TKR5184 FAQ
1.How can I place an order for ISL6568CRZ-TKR5184 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6568CRZ-TKR5184 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 ISL6568CRZ-TKR5184 reliable?
The price and inventory of ISL6568CRZ-TKR5184 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6568CRZ-TKR5184 is usually 5 days.
3.What payment methods are accepted for ISL6568CRZ-TKR5184?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6568CRZ-TKR5184 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6568CRZ-TKR5184?
ISL6568CRZ-TKR5184 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6568CRZ-TKR5184 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 ISL6568CRZ-TKR5184?
For technical support, including ISL6568CRZ-TKR5184 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6568CRZ-TKR5184 requirements.
6.How does Aetrix verify that ISL6568CRZ-TKR5184 is sourced from the original manufacturer or authorized distributors?
All ISL6568CRZ-TKR5184 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 ISL6568CRZ-TKR5184 meets industry standards.
7.What is the process for return or replacement of ISL6568CRZ-TKR5184?
All ISL6568CRZ-TKR5184 units undergo pre-shipment inspection (PSI). If there is an issue with ISL6568CRZ-TKR5184, 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 ISL6568CRZ-TKR5184 part is unused and in its original packaging.
Return procedure for ISL6568CRZ-TKR5184:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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