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Infineon Technologies IR3566AMIN01TRP
- Part No.:
- IR3566AMIN01TRP
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
IR3566AMIN01TRP.pdf
- Description:
- IC REG BUCK 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,613
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Product details
Overview
IR3566AMIN01TRP from Infineon Technologies (formerly International Rectifier) is a dual-output, 6+1 phase digital multi-phase buck controller for CPU voltage regulation, compliant with AMD® SVI1/SVI2 and Intel® VR12 specifications, featuring 200kHz–2MHz per-phase switching, IR Adaptive Transient Algorithm (ATA), and dual-loop I²C/SMBus/PMBus telemetry for voltage, current, temperature, and power.
For engineers reviewing the IR3566AMIN01TRP datasheet, IR3566AMIN01TRP pinout, IR3566AMIN01TRP application, or IR3566AMIN01TRP equivalent, key selection considerations include dual-loop OVP/UVP/OCP/OTP protection, programmable 1-phase light-load operation with active diode emulation, MTP-based configuration storage, and compatibility with 3.3V tri-state drivers and IR ATL gate drivers.
Technical Context
The IR3566A implements two independent digital PWM control loops with proprietary non-linear ATA for transient response optimization, enabling bulk capacitor reduction. Each loop supports dynamic phase add/drop, auto-phase detection with compensation, and real-time variable gate drive voltage adjustment based on load current.
It integrates thermistor-based temperature sensing with VRHOT_CRIT# output, dual SVI/VR12 interface support, and full PMBus 1.2 compliance for telemetry and configuration. Fault management includes per-loop OVP, UVP, OCP, OTP, and register-level diagnostics for rapid validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Dual Output Phasing | 6+1 phase per loop; enables scalable CPU/GPU VR with independent loop control and phase shedding. |
| Switching Frequency Range | 200 kHz to 2 MHz per phase; allows optimization of efficiency vs. size trade-offs across load conditions. |
| Interface Protocol | I²C/SMBus/PMBus 1.2; provides bidirectional telemetry (V/I/T/P) and configurable fault thresholds via standard system bus. |
| Operating Ambient Temp | −40°C to +85°C; qualified for industrial-grade server and high-end desktop thermal environments. |
| Supply Voltage | +3.3 V only; eliminates need for auxiliary bias rails and simplifies power sequencing design. |
| Package | 6 mm × 6 mm QFN-48, 0.4 mm pitch; supports high-density VR layout with thermal pad for enhanced heat dissipation. |
| MTP Memory | Multiple Time Programmable with integrated charge pump; stores custom configurations without external EEPROM or firmware boot dependency. |
Pinout & Package
IR3566AMIN01TRP is housed in a 6 mm × 6 mm, 48-pin QFN package with exposed thermal pad. Pin assignment follows standardized dual-loop VR controller topology, supporting independent phase control, sensing, and telemetry interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM1–PWM6 | Phase gate drive outputs | Drive external high-side MOSFETs; support interleaved timing and phase shedding per loop. |
| VSEN / VSEN_L2 | Output voltage sense inputs | Differential remote sensing per loop; enables accurate regulation under PCB IR drop. |
| ISEN1–ISEN6 / IRTN1–IRTN6 | Current sense inputs | Support DCR or shunt-based current monitoring per phase; enable per-phase OCP and phase balancing. |
| SM_CLK / SM_DIO | PMBus interface signals | Standardized 2-wire SMBus-compatible interface for telemetry read/write and configuration update. |
| VRDY1 / VRDY2 | Power-good status outputs | Open-drain signals indicating stable regulation per loop; used for CPU/GPU power sequencing coordination. |
| VRHOT_CRIT# | Thermal alert output | Active-low critical overtemperature flag derived from internal thermistor network; triggers system shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| IR Adaptive Transient Algorithm (ATA) | Non-linear digital PWM reduces required bulk capacitance by up to 40% while maintaining <±1% load-step regulation. |
| Dynamic Phase Control | Automatically scales active phases from 6 down to 1 per loop based on real-time load, improving light-load efficiency. |
| Active Diode Emulation | Enables synchronous rectifier emulation at ultra-light loads, eliminating reverse recovery losses in low-IOUT states. |
| Auto-Phase Detection & Compensation | Identifies connected phases at startup and calibrates loop gain/compensation without manual tuning or external components. |
| Per-Loop Independent Protection | Dedicated OVP/UVP/OCP/OTP circuits per output ensure fault containment and prevent cross-loop failure propagation. |
Applications
| Server CPU Voltage Regulation | High-End Desktop CPU VR |
|---|---|
Use Scenario: Dual-socket x86 server motherboard delivering precise, adaptive core voltage to multi-core CPUs under dynamic workloads. IC Role / Device Role / Timing Role: Primary dual-loop VR controller managing 6+1 phase buck conversion per socket, coordinating with CPU SVI2 interface and PMBus telemetry. Use Value: Enables <±5 mV regulation accuracy across 0–100 A load steps while reducing bulk capacitor count by 30% via ATA. | Use Scenario: Enthusiast gaming desktop platform requiring overclocking support and real-time voltage margining for CPU stability testing. IC Role / Device Role / Timing Role: Configurable VR controller supporting Overclocking & Gaming Mode, dynamic VID updates, and per-phase current limiting. Use Value: Delivers sub-10 µs transient response and supports user-defined voltage offsets via MTP-stored profiles for validated OC headroom. |
| GPU Voltage Regulation | Multi-Die Processor Power Delivery |
Use Scenario: High-performance discrete GPU board with dual-rail power delivery for graphics core and memory subsystems. IC Role / Device Role / Timing Role: Dual-loop controller operating in PVI/SVI GPU VR mode, independently regulating VDDC and VDDQ with separate phase allocation. Use Value: Supports asymmetric phase distribution (e.g., 4+1 for core, 2+0 for memory) and independent OCP thresholds per rail. | Use Scenario: Heterogeneous compute module integrating CPU, GPU, and AI accelerators on single package with distinct voltage domains. IC Role / Device Role / Timing Role: Centralized dual-loop controller managing two independent VR domains, synchronized via VRDY handshake and shared PMBus host. Use Value: Reduces BOM count by consolidating two VR controllers into one IC while maintaining isolation and independent fault handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output digital multi-phase controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR3567B | Single-die 8+1 phase controller; higher phase count, no second independent loop; supports VR13 but not SVI2. | Targeted at single-rail high-current CPU VRs; lacks dual-loop telemetry and independent GPU rail support. | Select when only one high-current rail is needed and VR13 compliance is required over SVI2. |
| MP2940A | 6+1 phase dual-loop controller with PMBus 1.2; no ATA algorithm; fixed-gain compensation; lower integration (no MTP, no VRHOT_CRIT#). | Cost-sensitive client platforms; limited transient performance and no critical thermal alert signaling. | Select for entry-level desktop VR where ATA and VRHOT are non-critical and MTP configurability is unnecessary. |
Compared with IR3566AMIN01TRP, IR3567B trades dual-loop flexibility for higher single-rail phase density and VR13 readiness, while MP2940A offers functional parity at lower integration-lacking ATA, MTP, and VRHOT_CRIT#, making it unsuitable for high-reliability server or overclocking use cases.
Availability
IR3566AMIN01TRP is available at Aetrix Electronics and suitable for server CPU voltage regulation, high-end desktop VR design, and GPU power delivery systems requiring stable component supply, long-lifecycle support, and consistent MTP configuration reproducibility.
Supply support for IR3566AMIN01TRP 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
Infineon Technologies acquired International Rectifier in 2015 and continues its legacy in high-performance power management ICs, with global R&D and manufacturing infrastructure focused on energy-efficient semiconductor solutions.
The IR3566A belongs to Infineon's Digital Power Controller product line, engineered specifically for high-efficiency, digitally programmable CPU and GPU voltage regulation in servers, workstations, and enthusiast computing platforms.
FAQ
What is the maximum supported switching frequency per phase?
The IR3566AMIN01TRP supports a per-phase switching frequency range of 200 kHz to 2 MHz. This adjustable range allows designers to optimize between efficiency (lower frequencies) and component size (higher frequencies), with full loop stability maintained across the entire span using on-chip adaptive compensation.
Does the device support both AMD SVI2 and Intel VR12 protocols simultaneously?
Yes - the IR3566AMIN01TRP natively supports both AMD SVI1/SVI2 and Intel VR12 protocols on the same interface pins. It uses pin-strapping and MTP configuration to select the active protocol per loop, enabling mixed-platform designs or dual-CPU systems with heterogeneous CPU vendors.
How is configuration stored, and can it be updated in-system?
Configuration is stored in on-chip Multiple Time Programmable (MTP) memory with integrated charge pump. Updates are performed via PMBus commands (e.g., STORE_DEFAULT_ALL, STORE_USER_ALL) during development or field service - no external programmer or reflow is required.
What thermal protection features are implemented?
The device integrates thermistor-based temperature sensing with dedicated VRHOT_CRIT# output - an active-low signal asserting when die temperature exceeds a user-configurable critical threshold. Per-loop OTP is also implemented, triggering immediate shutdown of the affected loop while preserving operation of the other loop.
IR3566AMIN01TRP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Type:
- PWM
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 2
- Output Phases:
- 6
- Voltage - Supply (Vcc/Vdd):
- 3.3V
- Frequency - Switching:
- 200kHz ~ 2MHz
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- No
- Clock Sync:
- No
- Serial Interfaces:
- I2C, PMBus, SMBus
- Control Features:
- Enable, Power Good
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VQFN-48-900
IR3566AMIN01TRP FAQ
1.How can I place an order for IR3566AMIN01TRP through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3566AMIN01TRP 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 IR3566AMIN01TRP reliable?
The price and inventory of IR3566AMIN01TRP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3566AMIN01TRP is usually 5 days.
3.What payment methods are accepted for IR3566AMIN01TRP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3566AMIN01TRP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3566AMIN01TRP?
IR3566AMIN01TRP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3566AMIN01TRP 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 IR3566AMIN01TRP?
For technical support, including IR3566AMIN01TRP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3566AMIN01TRP requirements.
6.How does Aetrix verify that IR3566AMIN01TRP is sourced from the original manufacturer or authorized distributors?
All IR3566AMIN01TRP 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 IR3566AMIN01TRP meets industry standards.
7.What is the process for return or replacement of IR3566AMIN01TRP?
All IR3566AMIN01TRP units undergo pre-shipment inspection (PSI). If there is an issue with IR3566AMIN01TRP, 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 IR3566AMIN01TRP part is unused and in its original packaging.
Return procedure for IR3566AMIN01TRP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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