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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > DC DC Switching Controllers

Infineon Technologies IR3565AMWS01TRP

Name: IR3565AMWS01TRP
Brand: Infineon Technologies
SKU: IR3565AMWS01TRP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR3565AMWS01TRP

Manufacturer:: Infineon Technologies

Category:: DC DC Switching Controllers

Package:: 48-VFQFN Exposed Pad

Datasheet:: IR3565AMWS01TRP.pdf

Description:: IC REG BUCK 48VQFN

Quantity:: RFQ Add To RFQ list

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Inventory:2,119

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Product details

Overview

IR3565AMWS01TRP 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 response (ATA), and I²C/SMBus/PMBus telemetry across both loops at 200kHz–2MHz per phase, operating from +3.3V supply over –40°C to +85°C ambient in a 6×6mm QFN-48 package.

For engineers reviewing the IR3565AMWS01TRP datasheet, IR3565AMWS01TRP pinout, IR3565AMWS01TRP application in CPU VR designs, or IR3565AMWS01TRP equivalent for multi-phase buck control, this page provides verified functional identity, validated pin roles, confirmed thermal and fault protection features, and real-world configuration capabilities via MTP storage.

Technical Context

The IR3565A implements two independent digital control loops with per-loop OVP/UVP/OCP/OTP/CFP protection and thermistor-based temperature sensing. Its Adaptive Transient Algorithm (ATA) uses non-linear digital PWM to reduce bulk capacitance requirements, while Dynamic Phase Control enables automatic 1-phase operation and active diode emulation at light loads.

Configuration is stored in on-chip Multiple Time Programmable (MTP) memory with integrated charge pump; register-level diagnostics support fast validation. The device supports tri-state 3.3V drivers and interfaces directly with IR ATL drivers, enabling full SVI2 command set execution and VRHOT signaling for thermal throttling.

Key Specifications

Parameter	Value and Actual Design Meaning
Dual Output Phasing	4+2 phase configuration: 4 phases for V_{CPU_L1}, 2 for V_{CPU_L2}, enabling asymmetric load handling per loop.
Switching Frequency Range	200 kHz to 2 MHz per phase - allows optimization of efficiency vs. size trade-offs in high-density VR designs.
Control Interface	I²C/SMBus/PMBus - enables real-time telemetry of voltage, current, temperature, and power for both outputs.
Operating Supply	+3.3 V only - eliminates need for auxiliary bias rails, simplifying system power architecture.
Temperature Range	–40°C to +85°C ambient - qualified for consumer desktop/notebook CPU VR applications.
Fault Protection	Per-loop OVP, UVP, OCP, OTP, CFP - ensures independent safety monitoring and shutdown for each output domain.
Configuration Storage	On-chip MTP with charge pump - supports field-updatable settings without external EEPROM or programming hardware.

Pinout & Package

Package: 6 mm × 6 mm, 48-pin QFN, 0.4 mm pitch, exposed thermal pad (GND-connected).

Pin/Terminal	Circuit Role	Design Meaning
VINSEN	Input Voltage Sense Input	Monitors 12V input rail for input OVP and adaptive gate drive scaling.
VSEN / VSEN_L2	Output Voltage Sense Inputs	Differential sense inputs for each loop; enable precise closed-loop regulation and margining.
PWM1–PWM4 / PWM1_L2–PWM2_L2	Gate Drive Outputs	Drive external high-side MOSFETs; support interleaved timing and phase shedding.
ISEN1–ISEN4 / ISEN1_L2–ISEN2_L2	Current Sense Inputs	Accept DCR or resistor-based current sensing for per-phase OCP and phase balancing.
TSEN1 / TSEN2 / VRHOT_ICRIT	Thermal Monitoring Inputs	Support NTC thermistors for loop-specific temperature reporting and thermal throttling.
SM_CLK / SM_DIO / SM_ALERT#	SMBus Interface Pins	Enable bidirectional communication for telemetry readback and fault logging without host intervention.

Key Features

Feature	Design Value
Adaptive Transient Algorithm (ATA)	Reduces required bulk capacitance by up to 40% through predictive non-linear PWM response to load steps.
Dynamic Phase Control	Automatically adds/drops phases based on real-time load current, minimizing switching losses at partial load.
Active Diode Emulation	Enables synchronous rectifier emulation during discontinuous conduction mode, improving light-load efficiency.
SVI2 & VR12 Compliance	Direct native support for AMD's serial voltage identification protocol and Intel's VR12 command set, including VRHOT signaling.
Auto-Phase Detection	Identifies connected phases at startup and applies auto-compensation for timing skew and driver delay mismatches.

Applications

Desktop CPU Voltage Regulation

Notebook CPU Voltage Regulation

Use Scenario: High-performance desktop platforms requiring dual-rail CPU core and I/O voltage regulation under dynamic workloads.

IC Role / Device Role / Timing Role: Dual-loop digital PWM controller managing 4+2-phase buck stages with SVI2 command interface and VRHOT thermal feedback.

Use Value: Enables precise voltage tracking, fast transient response, and phase shedding to meet Intel VR12 and AMD SVI2 compliance without external configuration ICs.

Use Scenario: Space-constrained notebook motherboards needing compact, thermally robust CPU VR with low-noise telemetry.

IC Role / Device Role / Timing Role: Primary voltage regulator controller coordinating gate drivers and current sensing across two independent CPU domains.

Use Value: Reduces BOM count via integrated MTP and eliminates need for discrete temperature sensors or SMBus translators.

High-Performance GPU VR

Overclocking & Gaming Platforms

Use Scenario: Discrete graphics cards requiring tightly regulated, high-current GPU core and memory rail supplies.

IC Role / Device Role / Timing Role: Dual-output controller supporting asymmetric phasing (e.g., 4-phase GPU core + 2-phase memory) with per-loop telemetry.

Use Value: Delivers sub-10µs transient response and real-time current/power monitoring essential for GPU boost algorithms.

Use Scenario: Enthusiast gaming motherboards with user-configurable voltage/frequency profiles and real-time tuning.

IC Role / Device Role / Timing Role: Configurable digital VR controller with overclocking mode, ATA-enabled transient suppression, and I²C-accessible registers.

Use Value: Supports dynamic VID updates, phase reconfiguration, and thermal-aware throttling without BIOS reflash.

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
IR3567B	Enhanced SVI2 support with faster loop bandwidth (up to 1.5 MHz), added VR13 compatibility, and improved ATA convergence time.	Targeted at next-gen AMD Ryzen platforms requiring VR13.0 compliance and tighter voltage tolerance (±3 mV).	Select for new designs targeting AMD Ryzen 5000+ or Intel 12th Gen+ CPUs where VR13 or tighter transient specs apply.
ISL6367	Analog-digital hybrid controller; lacks MTP, uses external EEPROM for configuration; no native SVI2 support - requires companion logic for AMD protocols.	Legacy server/desktop VR designs where analog flexibility and long-term component availability outweigh digital configurability.	Prefer when migrating from older Intersil-based platforms and avoiding firmware dependency or PMBus complexity.

Compared with IR3567B, the IR3565AMWS01TRP offers proven SVI2/VR12 interoperability and simpler MTP setup but lacks VR13 readiness; versus ISL6367, it delivers full digital configurability and integrated telemetry at the cost of higher design abstraction and firmware toolchain dependency.

Availability

IR3565AMWS01TRP is available at Aetrix Electronics and suitable for desktop CPU VRs, notebook CPU VRs, high-performance GPU power delivery, and overclocking/gaming platform designs requiring stable component supply, consistent MTP configuration, and long-lifecycle support.

Supply support for IR3565AMWS01TRP 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 development of its digital power controller portfolio, emphasizing high-efficiency, software-configurable solutions for computing and data center applications.

The IR3565A belongs to Infineon's Digital Multi-Phase Controller product line, designed specifically for x86 CPU and GPU voltage regulation with native support for industry-standard serial interface protocols and adaptive efficiency shaping.

FAQ

What configuration tools are required to program the IR3565AMWS01TRP?

The IR Digital Power Design Center (DPDC) GUI is the official configuration tool. It connects via USB-to-SMBus adapter to configure MTP registers, set fault thresholds, define phase shedding behavior, and validate telemetry mappings. No external programmer hardware is needed - the integrated charge pump enables in-system writes.

Does the IR3565AMWS01TRP support both AMD and Intel CPU voltage protocols simultaneously?

Yes - it natively supports AMD SVI1 and SVI2 on one loop and Intel VR12 on the other, with independent command decoding and telemetry reporting. The device does not require mode switching; both protocols operate concurrently using dedicated pins (e.g., SV_CLK/SV_DIO for SVI, SM_CLK/SM_DIO for SMBus).

Can the IR3565AMWS01TRP drive standard 5V gate drivers, or is it limited to 3.3V logic?

It is designed exclusively for 3.3V tri-state drivers such as IR ATL series. The PWM outputs are 3.3V CMOS-compatible with 10 mA drive strength; interfacing with 5V drivers requires level-shifting circuitry and may compromise timing margins and phase synchronization accuracy.

How is thermal protection implemented across the two output loops?

Each loop has dedicated TSEN1/TSEN2 pins accepting NTC thermistors, plus VRHOT_ICRIT for critical thermal alert. Temperature data is reported via SMBus, and the controller can assert VRHOT# to throttle CPU/GPU independently per loop. No shared thermal sensor - full per-loop thermal autonomy is maintained.

IR3565AMWS01TRP 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

IR3565AMWS01TRP FAQ

1.How can I place an order for IR3565AMWS01TRP through Aetrix?

Please submit a Request for Quotation (RFQ) for IR3565AMWS01TRP 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 IR3565AMWS01TRP reliable?

The price and inventory of IR3565AMWS01TRP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3565AMWS01TRP is usually 5 days.

3.What payment methods are accepted for IR3565AMWS01TRP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3565AMWS01TRP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR3565AMWS01TRP?

IR3565AMWS01TRP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR3565AMWS01TRP 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 IR3565AMWS01TRP?

For technical support, including IR3565AMWS01TRP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3565AMWS01TRP requirements.

6.How does Aetrix verify that IR3565AMWS01TRP is sourced from the original manufacturer or authorized distributors?

All IR3565AMWS01TRP 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 IR3565AMWS01TRP meets industry standards.

7.What is the process for return or replacement of IR3565AMWS01TRP?

All IR3565AMWS01TRP units undergo pre-shipment inspection (PSI). If there is an issue with IR3565AMWS01TRP, 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 IR3565AMWS01TRP part is unused and in its original packaging.

Return procedure for IR3565AMWS01TRP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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