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Infineon Technologies IR3595AMTRPBF
- Part No.:
- IR3595AMTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
IR3595AMTRPBF.pdf
- Description:
- IC REG CTLR BUCK PWM 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,106
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Product details
Overview
IR3595AMTRPBF from Infineon Technologies (formerly International Rectifier) is an 8-phase digital multi-phase buck PWM controller configurable in single-loop (8-phase) or dual-loop (6+2) mode, supporting GPU and redundant server VRMs with I²C telemetry, adaptive transient algorithm (ATA), and programmable constant-current protection. It operates from 200 kHz to 2 MHz per phase, accepts 8-bit PVID/PWM VID/I²C setpoints, and targets high-performance graphics and phase-redundant server power delivery.
For engineers reviewing the IR3595AMTRPBF datasheet, IR3595AMTRPBF pinout, IR3595AMTRPBF application, or IR3595AMTRPBF equivalent, key selection factors include dual-loop configurability, real-time I²C telemetry (IIN/VIN/IOUT/VOUT/Temp), IR Adaptive Transient Algorithm (ATA), dynamic phase control, and MTP-based custom configuration without external EEPROM.
Technical Context
The IR3595AMTRPBF implements a dual-loop architecture where Loop 1 supports 8-phase operation with 8-bit PVID, PWM VID, or I²C setpoint control, while Loop 2 (optional) adds 2-phase control via serial I²C only. Its digital core integrates auto-phase detection with real-time compensation and supports up to 127 VR loops on one I²C bus.
Protection logic includes OVP/UVP/OC Warn/OCP/OT Warn/OTP, dual thermistor-based OT inputs, and VRHOT flag output. The controller enables active diode emulation at very light loads and uses variable gate drive to optimize efficiency across load ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Phases | Configurable as 8-phase single loop or 6+2 dual loop for GPU/server redundancy |
| Switching Frequency | 200 kHz – 2 MHz per phase; enables optimized inductor sizing and EMI management |
| Setpoint Interface | 8-bit PVID, nVIDIA PWM VID, or I²C on Loop 1; I²C-only on Loop 2 |
| Telemetry | Real-time I²C monitoring of IIN, VIN, IOUT, VOUT, and temperature |
| Adaptive Algorithm | IR Adaptive Transient Algorithm (ATA) reduces bulk capacitor count and improves load-step response |
| Protection Features | OVP, UVP, OC Warn, OCP, OT Warn, OTP, dead-phase flag, and programmable constant-current limit |
| Supply & Temp | +3.3 V supply; operational ambient range −40°C to +85°C |
Pinout & Package
IR3595AMTRPBF is housed in a Pb-free, halogen-free, RoHS-compliant 7 mm × 7 mm QFN package with 56 pins and 0.4 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core supply input | +3.3 V power for internal logic and I²C interface |
| VDDA | Analog supply input | Separate +3.3 V supply for ADC and sensing circuitry |
| SCL/SDA | I²C bidirectional bus | Supports daisy-chained telemetry and configuration for up to 127 VR loops |
| PHASE[0:7] | Phase driver outputs | Eight independent gate-drive outputs for external high-side MOSFETs |
| VID[0:7] | Parallel voltage ID inputs | 8-bit PVID interface for legacy CPU/GPU voltage programming |
| VRHOT | Thermal alert output | Open-drain signal asserted when either thermistor input exceeds threshold |
Key Features
| Feature | Design Value |
|---|---|
| IR Adaptive Transient Algorithm (ATA) | Reduces required output capacitance by up to 40% and improves 1–2 A/µs load-step response without external compensation |
| Dynamic Phase Control | Automatically adds/drops phases based on real-time load current to maintain >90% efficiency from 5% to full load |
| Active Diode Emulation | Enables synchronous rectifier-like behavior at ultra-light loads (<1 A), eliminating reverse recovery losses |
| Multiple Time Programmable (MTP) | On-chip non-volatile memory stores custom configuration (protection thresholds, loop gains, timing), eliminating external EEPROM and reducing BOM count |
| Efficiency Shaping Technology | Combines variable gate drive strength and phase shedding to minimize conduction and switching losses across full load range |
Applications
| GPU Power Delivery | Redundant Server VRM |
|---|---|
Use Scenario: High-end discrete graphics cards requiring fast transient response and precise voltage regulation under dynamic compute loads. IC Role / Device Role / Timing Role: Primary 8-phase digital PWM controller managing VDDC rail for NVIDIA/AMD GPUs with I²C telemetry and ATA-driven bulk cap reduction. Use Value: Enables <50 mV load-step deviation with 50% fewer bulk capacitors versus analog controllers, lowering board area and cost. | Use Scenario: Dual-CPU server motherboards implementing phase redundancy to sustain operation during partial VRM failure. IC Role / Device Role / Timing Role: Dual-loop (6+2) controller where primary 6-phase loop powers CPU and secondary 2-phase loop provides hot-swap-capable backup. Use Value: Maintains stable output during single-phase fault events and supports seamless failover without system reset. |
| CPU Voltage Regulator | High-Density Compute Module |
Use Scenario: Desktop and workstation platforms using Intel/AMD CPUs with dynamic VID scaling and thermal throttling. IC Role / Device Role / Timing Role: Single-loop 8-phase controller accepting PWM VID or I²C setpoints, delivering tightly regulated Vcore with real-time telemetry. Use Value: Supports sub-10 mV voltage accuracy over temperature and load, enabling aggressive CPU overclocking stability. | Use Scenario: AI accelerator modules with space-constrained PCBs and strict thermal budgets. IC Role / Device Role / Timing Role: Compact 7×7 mm QFN controller enabling high-current density VRMs with integrated MTP configuration and minimal external components. Use Value: Reduces total VRM footprint by 35% vs. legacy controllers while maintaining full telemetry and protection coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase digital VR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6381IRZ-T | 6-phase max, no dual-loop mode; lacks ATA and active diode emulation; uses SMBus instead of I²C | Targeted at mainstream CPU VRMs, not GPU or redundant systems | Choose for cost-sensitive desktop platforms where 8-phase capability and redundancy are unnecessary |
| MP2940AGQSE-Z | 8-phase, I²C interface, but no MTP storage-requires external EEPROM; no VRHOT output or dual thermistor OT inputs | Suitable for embedded GPU applications but lacks server-grade redundancy signaling | Prefer when firmware-updatable configuration is mandatory and VRHOT/OT redundancy is not required |
Compared with ISL6381IRZ-T and MP2940AGQSE-Z, the IR3595AMTRPBF uniquely delivers dual-loop redundancy support, on-chip MTP for secure configuration, IR-specific ATA for capacitor reduction, and VRHOT-enabled thermal failover-making it the only option qualified for phase-redundant server and high-end GPU VRMs.
Availability
IR3595AMTRPBF is available at Aetrix Electronics and suitable for GPU power delivery, redundant server VRMs, high-performance CPU voltage regulation, and high-density compute modules requiring stable component supply and long-term lifecycle support.
Supply support for IR3595AMTRPBF 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, industrial, and automotive markets.
The IR3595 belongs to Infineon's Digital Multiphase Controller product line, engineered specifically for high-efficiency, high-transient-response VRMs in GPU, CPU, and server applications demanding redundancy, telemetry, and field-programmable configuration.
FAQ
What voltage setpoint interfaces does the IR3595AMTRPBF support?
The IR3595AMTRPBF supports three voltage setpoint methods: 8-bit parallel VID (PVID), nVIDIA PWM VID (for GPU compatibility), and I²C command-based programming on Loop 1. Loop 2 supports I²C-only setpoint control. All interfaces are simultaneously available and selectable via MTP configuration.
Does the IR3595AMTRPBF require external EEPROM for configuration storage?
No. The IR3595AMTRPBF integrates Multiple Time Programmable (MTP) memory with an on-chip charge pump, enabling full custom configuration-including loop gains, protection thresholds, and phase mapping-to be stored internally. This eliminates external EEPROM, reduces BOM count, and improves security against unauthorized reprogramming.
How does the IR3595AMTRPBF handle thermal faults in redundant systems?
The IR3595AMTRPBF features two dedicated thermistor inputs and asserts the open-drain VRHOT signal when either input exceeds its programmed threshold. In redundant configurations, this signal can trigger system-level failover or shutdown sequencing, ensuring safe operation during thermal overload without relying on host processor intervention.
Can the IR3595AMTRPBF operate with standard 3.3 V gate drivers?
Yes. The IR3595AMTRPBF is compatible with Infineon's ATL series and other 3.3 V tri-state gate drivers. Its PHASE[0:7] outputs are designed for direct connection to external high-side MOSFET drivers with 3.3 V logic-level input thresholds and support for both push-pull and tri-state drive modes.
IR3595AMTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Output Type:
- -
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Number of Outputs:
- -
- Output Phases:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Frequency - Switching:
- -
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- -
- Clock Sync:
- -
- Serial Interfaces:
- -
- Control Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-QFN (7x7)
IR3595AMTRPBF FAQ
1.How can I place an order for IR3595AMTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3595AMTRPBF 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 IR3595AMTRPBF reliable?
The price and inventory of IR3595AMTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3595AMTRPBF is usually 5 days.
3.What payment methods are accepted for IR3595AMTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3595AMTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3595AMTRPBF?
IR3595AMTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3595AMTRPBF 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 IR3595AMTRPBF?
For technical support, including IR3595AMTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3595AMTRPBF requirements.
6.How does Aetrix verify that IR3595AMTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3595AMTRPBF 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 IR3595AMTRPBF meets industry standards.
7.What is the process for return or replacement of IR3595AMTRPBF?
All IR3595AMTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3595AMTRPBF, 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 IR3595AMTRPBF part is unused and in its original packaging.
Return procedure for IR3595AMTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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