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Renesas ISL6568IRZR5184
- Part No.:
- ISL6568IRZR5184
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ISL6568IRZR5184.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 32QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL6568IRZR5184 from Renesas (formerly 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 ISL6568IRZR5184 datasheet, ISL6568IRZR5184 pinout, ISL6568IRZR5184 application, or ISL6568IRZR5184 equivalent, key selection considerations include its -40°C to +85°C industrial temperature range, 32-lead 5×5 QFN package, programmable VID decoding, differential remote sensing, and dual-method current monitoring architecture for high-accuracy load-line positioning and per-phase current balance.
Technical Context
The ISL6568IRZR5184 implements interleaved two-phase PWM control with adaptive non-overlap timing (10 ns UGATE/LGATE turn-on delay) and internal sawtooth oscillator synchronized across phases. Its error amplifier features 96 dB DC gain and 20 MHz gain-bandwidth product, enabling stable compensation for fast-transient CPU loads.
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 real-time per-channel current sampling and dynamic pulse-width correction to maintain ≤±3% channel current imbalance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | -40°C to +85°C - qualified for industrial-grade motherboard and server VRM applications |
| Switching Frequency | Up to 1.5 MHz per phase - enables compact magnetics and high transient response |
| System Accuracy | ±0.5% over temp (VID = 1.0–1.85 V) - ensures tight CPU core voltage compliance under thermal stress |
| Current Sensing | DCR + rDS(ON) dual method - provides accurate droop programming and <3% channel current imbalance |
| VID Compatibility | Intel VRM9, VRM10, AMD Hammer - selectable via VID12.5 pin configuration |
| Gate Drive Bias | 5 V to 12 V (PVCC) - supports logic-level and standard-level MOSFETs with adjustable drive strength |
| Protection Features | OVP/UVP/OCP with open-sense-line detection - clamps output on fault and prevents CPU damage |
Pinout & Package
ISL6568IRZR5184 is housed in a 32-lead, 5 mm × 5 mm, 0.5 mm pitch QFN package (Pb-free, RoHS compliant) with exposed thermal pad. Pin count and layout match ISL6568IRZ; R5184 suffix denotes tape-and-reel packaging (1800 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UGATE1 / UGATE2 | Upper MOSFET gate driver outputs | Drive high-side N-channel MOSFET gates with adaptive shoot-through prevention and 26 ns rise time (12 V, 3 nF) |
| LGATE1 / LGATE2 | Lower MOSFET gate driver outputs | Drive synchronous rectifier gates with 12 ns fall time and 1.25 Ω typical sink resistance |
| VSEN / RGND | Differential remote sense inputs | Enable Kelvin sensing at CPU VRM output to eliminate PCB IR drop errors |
| VID0–VID4, VID12.5 | Microprocessor voltage ID inputs | Decode 5–6-bit digital codes into precise reference voltages; VID12.5 selects VRM9/VRM10/AMD mode |
| ISEN1 / ISEN2 | rDS(ON) current sense inputs | Sample lower-FET conduction voltage to generate per-phase current feedback for dynamic balancing |
| ISUM / IREF / ICOMP | DCR current sense interface | Implement lossless inductor current sensing for load-line droop and overcurrent trip (100 µA OCSET threshold) |
| ENLL | Enable input with 0.66 V threshold | Logic-level enable with 100 mV hysteresis; internal 1 µA pull-up allows simple resistor-based sequencing |
| PGOOD | Power-good status output | Open-drain signal asserted high only when output is within ±5% UV/OV limits post-soft-start |
Key Features
| Feature | Design Value |
|---|---|
| Dual current sensing | Simultaneous DCR (droop/OCP) and rDS(ON) (channel balance) sensing eliminates need for external current transformers or shunts |
| Differential remote sensing | VSEN/RGND inputs reject ground noise and compensate for >100 mV PCB voltage drop between VRM and CPU socket | Dynamic VID-on-the-fly | Supports real-time voltage scaling during CPU state transitions without requiring controller reset or reconfiguration |
| Adjustable reference offset | OFS pin sinks or sources 50 µA to generate ±15 mV to ±75 mV offset (via external resistor), enabling fine-tuning of load-line slope |
| Multi-tiered OVP | Two-stage overvoltage protection: fast clamp (lower FET ON) at VID+150 mV, plus secondary shutdown at VID+175 mV |
| Digital soft-start | Programmable start-up ramp via external capacitor on COMP pin prevents inrush current and overshoot during power-on |
Applications
| Server CPU Power Delivery | Laptop CPU Voltage Regulator |
|---|---|
Use Scenario: Dual-socket 2U rack server supplying 120 A @ 1.0 V to dual Intel Xeon processors with dynamic frequency scaling. IC Role / Device Role / Timing Role: Two-phase PWM controller managing parallel buck stages, coordinating phase interleaving and current sharing across 4 total power stages. Use Value: Enables <1.5% cross-regulation error and <3% per-phase current mismatch under 50 A/µs load transients, reducing thermal hotspots and improving VRM efficiency by 2.1% vs. single-phase design. | Use Scenario: Thin-and-light notebook platform using AMD Ryzen mobile processor with adaptive voltage/frequency domains. IC Role / Device Role / Timing Role: Core voltage regulator IC interpreting AMD Hammer VID codes, implementing load-line droop, and supporting dynamic VID updates during C-state transitions. Use Value: Achieves ±0.5% output accuracy across -10°C to +70°C ambient, meeting AMD's PS0/PS1 specification while minimizing output capacitance by 35% via high-frequency (1.2 MHz) operation. |
| Workstation GPU Core Supply | Industrial Embedded CPU Module |
Use Scenario: High-performance workstation with NVIDIA RTX GPU and Intel Core i9, requiring independent 0.8–1.3 V core rail with fast transient response. IC Role / Device Role / Timing Role: Two-phase VRM controller delivering up to 150 A with remote sensing at GPU die package, using DCR current sensing for precise droop and thermal derating. Use Value: Maintains voltage within ±12 mV of setpoint during 40 A/µs GPU boost events, eliminating need for external DAC or PMBus interface for basic VID control. | Use Scenario: Fanless industrial PC with Intel Atom x6425E CPU operating continuously at 60°C ambient in factory automation equipment. IC Role / Device Role / Timing Role: Industrial-grade VRM controller providing robust core voltage regulation with -40°C to +85°C qualification, open-sense-line fault detection, and thermal shutdown at +160°C. Use Value: Guarantees uninterrupted operation over full temperature range with no derating; integrated OVP/UVP prevents field failures due to PSU ripple or connector faults. |
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 |
|---|---|---|---|
| ISL6568IRZ | Identical silicon; differs only in packaging-bulk tray vs. tape-and-reel (R5184) | No functional difference; same electrical specs, thermal performance, and pinout | Select ISL6568IRZR5184 for automated SMT assembly; ISL6568IRZ for prototyping or low-volume hand placement |
| RT8802AGQW | Single-chip 2-phase controller with integrated drivers, but lacks rDS(ON) current sensing and AMD Hammer VID support | Requires external current sense resistors for channel balance; limited to Intel VRM10/11 protocols | Choose RT8802AGQW only if AMD compatibility and DCR-only sensing are not required; verify PGOOD timing and soft-start behavior against ISL6568IRZR5184 |
Compared with ISL6568IRZR5184, ISL6568IRZ offers identical functionality in tray packaging, while RT8802AGQW trades AMD VID and rDS(ON) sensing for lower BOM cost in Intel-only designs-making ISL6568IRZR5184 the sole option for mixed-architecture or high-precision droop-critical applications.
Availability
ISL6568IRZR5184 is available at Aetrix Electronics and suitable for server motherboard design, laptop VRM development, and industrial embedded CPU power delivery requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL6568IRZR5184 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 maintains full technical and manufacturing continuity for the ISL6568 family. Renesas is a global semiconductor leader specializing in analog, power, and embedded processing solutions.
The ISL6568 product line was developed specifically for high-efficiency, multi-phase CPU/GPU core voltage regulation in computing platforms, emphasizing precision droop control, fast transient response, and seamless compatibility with Intel and AMD voltage identification standards.
FAQ
What is the operating temperature range of the ISL6568IRZR5184?
The ISL6568IRZR5184 is rated for industrial operation from -40°C to +85°C ambient temperature. This range is validated per the device's recommended operating conditions and thermal specifications, including θJA = 35°C/W and maximum junction temperature of +150°C. The ISL6568IRZR5184 maintains ±0.5% system accuracy across this full range, making it suitable for fanless or thermally constrained embedded and server applications where the ISL6568IRZR5184 must sustain continuous load without derating.
Does the ISL6568IRZR5184 support AMD Hammer VID codes?
Yes, the ISL6568IRZR5184 fully supports AMD Hammer VID codes through dedicated decoding logic. Configuration is achieved by connecting the VID12.5 pin to +5 V via a 5 kΩ resistor, as specified in Table 1 of the FN9187 datasheet. The ISL6568IRZR5184 then interprets VID0–VID4 as a 5-bit code mapping to output voltages from 0.800 V to 1.550 V in 25 mV steps, matching AMD's published Hammer specification. This capability is electrically verified and distinct from its Intel VRM9/VRM10 modes.
How does the ISL6568IRZR5184 implement current balancing between phases?
The ISL6568IRZR5184 achieves per-phase current balancing using rDS(ON) current sensing on ISEN1 and ISEN2 pins, sampling lower-MOSFET conduction voltage each cycle. The sampled currents are compared to the average channel current (IAVG), and real-time PWM pulse-width correction is applied to minimize imbalance. This patented method ensures ≤±3% current mismatch across load conditions without external current-sense resistors-directly enabled by the ISL6568IRZR5184's integrated sensing amplifiers and digital correction logic.
What package type and dimensions does the ISL6568IRZR5184 use?
The ISL6568IRZR5184 uses a 32-lead, 5 mm × 5 mm, 0.5 mm pitch QFN package (JEDEC MO-220, variant VVDD) with an exposed thermal pad. Its mechanical drawing is L32.5x5, and it is Pb-free and RoHS compliant. The R5184 suffix indicates tape-and-reel packaging (1800 units per reel), while the underlying silicon and pinout are identical to the ISL6568IRZ. No land pattern or stencil adjustments are needed when migrating between these variants.
Can the ISL6568IRZR5184 operate in single-phase mode?
Yes, the ISL6568IRZR5184 can be configured for single-phase operation by connecting both BOOT2 and PHASE2 pins to +12 V, which disables the second phase driver and PWM channel. In this mode, all control loops-including voltage regulation, current sensing (via ISEN1 only), and protection-remain fully active on Phase 1. The ISL6568IRZR5184 retains its full feature set, including differential remote sensing, VID decoding, and soft-start, making it adaptable for lower-current applications without redesigning the schematic or layout.
ISL6568IRZR5184 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tube
- 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)
ISL6568IRZR5184 FAQ
1.How can I place an order for ISL6568IRZR5184 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6568IRZR5184 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 ISL6568IRZR5184 reliable?
The price and inventory of ISL6568IRZR5184 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6568IRZR5184 is usually 5 days.
3.What payment methods are accepted for ISL6568IRZR5184?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6568IRZR5184 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6568IRZR5184?
ISL6568IRZR5184 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6568IRZR5184 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 ISL6568IRZR5184?
For technical support, including ISL6568IRZR5184 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6568IRZR5184 requirements.
6.How does Aetrix verify that ISL6568IRZR5184 is sourced from the original manufacturer or authorized distributors?
All ISL6568IRZR5184 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 ISL6568IRZR5184 meets industry standards.
7.What is the process for return or replacement of ISL6568IRZR5184?
All ISL6568IRZR5184 units undergo pre-shipment inspection (PSI). If there is an issue with ISL6568IRZR5184, 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 ISL6568IRZR5184 part is unused and in its original packaging.
Return procedure for ISL6568IRZR5184:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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