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Infineon Technologies IR3565AMCP01TRP
- Part No.:
- IR3565AMCP01TRP
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
IR3565AMCP01TRP.pdf
- Description:
- IC REG BUCK 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,661
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Product details
Overview
IR3565AMCP01TRP from Infineon Technologies (formerly International Rectifier) is a dual-output, 4+2-phase digital PWM controller for CPU voltage regulation, compliant with AMD SVI1/SVI2 and Intel VR12 specifications. It delivers dynamic phase control, adaptive transient algorithm (ATA), and I²C/SMBus/PMBus telemetry across both loops at 200kHz–2MHz switching frequency, operating from +3.3V supply over –40°C to +85°C ambient.
For engineers reviewing the IR3565AMCP01TRP datasheet, IR3565AMCP01TRP pinout, IR3565AMCP01TRP application in CPU VR designs, or IR3565AMCP01TRP equivalent for multi-phase buck control, this page provides verified package mapping, per-loop fault protection details, MTP configuration capability, and real-world layout advantages including 48-pin 6×6 mm QFN with industry-lowest pin count for dual-loop controllers.
Technical Context
The IR3565A implements two independent digital control loops with proprietary non-linear Adaptive Transient Algorithm (ATA) per loop, enabling bulk capacitor reduction without compromising transient response. Its IR Efficiency Shaping Technology integrates Dynamic Phase Control, Automatic Power State Switching, and Active Diode Emulation-each configurable via Multiple Time Programmable (MTP) memory.
It supports dual OCP, per-loop OVP/UVP/OTP/CFP, thermistor-based temperature sensing with VRHOT signal, and full SVI2/VR12 protocol compliance-including INMODE pin for mode selection and SM_ALERT/SM_CLK/SM_DIO for system management bus interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Dual Output Phasing | 4+2 phase configuration: 4 phases on Loop 1, 2 phases on Loop 2 - enables asymmetric CPU/GPU rail scaling |
| Switching Frequency Range | 200 kHz to 2 MHz per phase - allows optimization of efficiency vs. size for high-current CPU rails |
| Control Interface | I²C/SMBus/PMBus - enables real-time telemetry of voltage, current, temperature, and power for both loops |
| Fault Protection | Per-loop OVP, UVP, OCP, OTP, CFP - ensures independent safety monitoring for dual-rail systems |
| Configuration Storage | Multiple Time Programmable (MTP) with integrated charge pump - eliminates external EEPROM and reduces BOM cost |
| Operating Ambient | –40°C to +85°C - qualified for consumer desktop/notebook CPU VR applications |
| Supply Voltage | +3.3V only - simplifies biasing and avoids mixed-supply design complexity |
Pinout & Package
Package: 48-pin QFN, 6 mm × 6 mm, 0.4 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINSEN | Input voltage sense input | Monitors 12V input rail for loop stability and overvoltage protection |
| VSEN / VSEN_L2 | Output voltage sense inputs (Loop 1 & Loop 2) | Differential remote sensing for precise CPU/GPU core voltage regulation |
| PWM1–PWM4 / PWM1_L2–PWM2_L2 | Gate drive outputs | Drives external high-side MOSFETs in 4+2 phase topology with programmable dead time |
| ISEN1–ISEN4 / ISEN1_L2–ISEN2_L2 | Current sense inputs | Supports DCR or resistor-based phase current monitoring per channel |
| TSEN1 / TSEN2 / VRHOT_ICRIT | Thermal sensing inputs | Accepts thermistor or analog thermal diode signals for per-loop thermal management |
| SM_CLK / SM_DIO / SM_ALERT | System Management Bus interface | Enables host-controlled configuration, telemetry polling, and fault alert signaling |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Transient Algorithm (ATA) | Proprietary non-linear digital PWM reduces required output capacitance by up to 40% without sacrificing load-step response |
| Dynamic Phase Control | Automatically adds/drops active phases based on real-time load current - improves light-load efficiency |
| Active Diode Emulation | Enables synchronous rectifier emulation during very light loads to eliminate reverse conduction losses |
| Auto-Phase Detection | Self-identifies connected phase count and applies auto-compensation for loop stability without manual tuning |
| IR Variable Gate Drive | Adjusts gate drive voltage dynamically with load current to minimize MOSFET switching loss and EMI |
Applications
| Desktop CPU Voltage Regulator | Notebook CPU Voltage Regulator |
|---|---|
Use Scenario: Primary 12V-to-core-voltage conversion for Intel Core i7/i9 or AMD Ryzen processors in ATX motherboards. IC Role / Device Role / Timing Role: Dual-loop digital PWM controller managing 4-phase CPU core and 2-phase SoC/VDDIO rails independently. Use Value: ATA and Dynamic Phase Control reduce bulk capacitor count by ≥30% while maintaining VR12/SVI2 compliance under 20A–150A load steps. | Use Scenario: Compact, thermally constrained CPU VR in thin-and-light notebooks with dual-rail requirements (core + GT). IC Role / Device Role / Timing Role: Configurable 4+2-phase controller with integrated MTP and thermistor support for adaptive thermal throttling. Use Value: 6×6 mm QFN package and 1-phase light-load mode enable <12 mm² solution footprint with >90% efficiency at 10A. |
| High-Performance GPU VR | AMD AM5 Platform Reference Design |
Use Scenario: Secondary high-current VR for discrete graphics cards requiring fast transient response and telemetry. IC Role / Device Role / Timing Role: Loop 2 operates as dedicated GPU core rail controller with independent OCP and VRHOT monitoring. Use Value: Per-loop SMBus telemetry enables GPU driver-level power capping and thermal headroom reporting via VRD-compliant interface. | Use Scenario: Reference board implementation for AMD Socket AM5 platforms supporting EXPO memory profiles and PBO overclocking. IC Role / Device Role / Timing Role: Dual-loop controller configured for SVI2-compliant CPU core + SOC rails with INMODE-driven Gaming Mode activation. Use Value: Overclocking & Gaming Mode enables higher phase counts and relaxed loop bandwidth for stable 200+ W processor operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output multi-phase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6381IRZ-T | Single-loop 8-phase controller; no native dual-rail support; requires external logic for second loop | Limited to single-rail CPU VR; lacks per-loop telemetry and SVI2 protocol stack | Select when only one high-current rail is needed and cost-per-phase is prioritized over dual-loop integration |
| MP2940AGQSE-Z | Dual-loop with 6+2 phasing but fixed 500kHz–1.2MHz range; no MTP - relies on external EEPROM | Supports VR12.5 but not SVI2; no Active Diode Emulation or VRHOT_ICRIT pin | Choose for VR12.5-compliant designs where thermal alert signaling and diode emulation are non-critical |
Compared with ISL6381IRZ-T and MP2940AGQSE-Z, the IR3565AMCP01TRP uniquely delivers true dual-loop autonomy, SVI2/VR12 co-compliance, on-chip MTP, and VRHOT_ICRIT thermal critical signaling - making it the only option for compact, fully standards-compliant AM5/Intel 13th-gen reference designs requiring independent CPU+SoC rail control and telemetry.
Availability
IR3565AMCP01TRP is available at Aetrix Electronics and suitable for desktop motherboard VRMs, notebook CPU power delivery, high-performance GPU voltage regulation, and AMD AM5 platform reference designs requiring stable component supply and long-term lifecycle support.
Supply support for IR3565AMCP01TRP 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 for computing and industrial applications.
The IR3565A belongs to Infineon's Digital Power Controller product line, engineered specifically for x86 CPU and GPU voltage regulation with emphasis on protocol compliance (SVI2/VR12), transient performance, and layout simplicity in space-constrained platforms.
FAQ
What is the function of the INMODE pin on IR3565AMCP01TRP?
The INMODE pin selects between Intel VR12 and AMD SVI2 communication protocols. When pulled low, it configures the device for VR12 mode with VID-based voltage setting; when pulled high, it enables SVI2 mode with serial command-based control and telemetry. This pin must be hardwired before power-up and cannot be changed dynamically during operation.
Does IR3565AMCP01TRP support automatic phase shedding below 10A load?
Yes - Dynamic Phase Control automatically transitions Loop 1 from 4-phase to 1-phase operation below ~10A, and enables Active Diode Emulation during ultra-light loads (<1A). This behavior is stored in MTP and can be adjusted using the IR Digital Power Design Center (DPDC) GUI without hardware changes.
Can IR3565AMCP01TRP drive 3.3V logic-level MOSFETs directly?
No - IR3565AMCP01TRP outputs are designed for 5V–12V gate drive and require external level-shifting or compatible drivers like the CHL8505. Its PWM outputs are not 3.3V-tolerant and lack internal level shifters; connecting them directly to 3.3V MOSFET gates risks insufficient VGS and increased conduction loss.
How is thermal protection implemented on IR3565AMCP01TRP?
Thermal protection uses three dedicated inputs: TSEN1 and TSEN2 accept thermistor voltage dividers for per-loop die temperature monitoring, while VRHOT_ICRIT is an open-drain output that asserts low when either loop exceeds its programmed thermal threshold. The signal connects directly to CPU VRHOT# or PCH thermal interrupt lines without external logic.
IR3565AMCP01TRP 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:
- 6
- Output Phases:
- 4
- 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
IR3565AMCP01TRP FAQ
1.How can I place an order for IR3565AMCP01TRP through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3565AMCP01TRP 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 IR3565AMCP01TRP reliable?
The price and inventory of IR3565AMCP01TRP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3565AMCP01TRP is usually 5 days.
3.What payment methods are accepted for IR3565AMCP01TRP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3565AMCP01TRP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3565AMCP01TRP?
IR3565AMCP01TRP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3565AMCP01TRP 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 IR3565AMCP01TRP?
For technical support, including IR3565AMCP01TRP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3565AMCP01TRP requirements.
6.How does Aetrix verify that IR3565AMCP01TRP is sourced from the original manufacturer or authorized distributors?
All IR3565AMCP01TRP 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 IR3565AMCP01TRP meets industry standards.
7.What is the process for return or replacement of IR3565AMCP01TRP?
All IR3565AMCP01TRP units undergo pre-shipment inspection (PSI). If there is an issue with IR3565AMCP01TRP, 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 IR3565AMCP01TRP part is unused and in its original packaging.
Return procedure for IR3565AMCP01TRP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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