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Infineon Technologies IR3590BMTRPBF
- Part No.:
- IR3590BMTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- -
- Datasheet:
-
IR3590BMTRPBF.pdf
- Description:
- IC REG CTLR BUCK I2C 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,882
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Product details
Overview
IR3590BMTRPBF from Infineon (formerly International Rectifier) is a 6-phase digital multi-phase buck controller optimized for redundant server power supplies, supporting single-loop PWM control, I²C-based VOUT programming, real-time telemetry (IIN/VIN/IOUT/VOUT/Temp), and IR Adaptive Transient Algorithm (ATA) for bulk capacitor reduction. It operates from 200 kHz to 2 MHz per phase, accepts +3.3 V supply, and delivers up to 510 A total output current across server CPU and memory VR applications.
For engineers reviewing the IR3590BMTRPBF datasheet, IR3590BMTRPBF pinout, IR3590BMTRPBF application, or IR3590BMTRPBF equivalent, key selection criteria include phase redundancy support, I²C-configurable constant-current protection, dynamic phase shedding (1-/2-phase light-load mode), dead-phase flagging, and MTP-programmable fault thresholds with VRHOT# thermal alert output.
Technical Context
The IR3590B implements a single-loop digital control architecture with proprietary non-linear PWM for adaptive transient response, eliminating need for external compensation. Its IR Efficiency Shaping Technology integrates Variable Gate Drive (adjusts VGD based on real-time load current) and Dynamic Phase Control (adds/drops phases at defined IOUT thresholds).
It supports auto-phase detection with auto-compensation, programmable OVP/UVP/OCP/OC Warn/OT Warn/OTP protection, and I²C communication with up to 127 VR loops on one bus. The integrated charge-pump-enabled Multiple Time Programming (MTP) stores configuration without external EEPROM or pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Phases | 6-phase configurable; supports 6+0 redundant topology with automatic dead-phase detection and flagging. |
| Switching Frequency | 200 kHz – 2 MHz per phase; enables optimization of inductor size, efficiency, and transient response. |
| Output Current Capability | Up to 510 A total IOUT; achieved via parallel phase current sharing with real-time ISEN monitoring. |
| Telemetry Resolution | Min/Max registers for IIN, VIN, IOUT, VOUT, Temp via I²C; improved resolution enables precise system-level power budgeting. |
| Light-Load Operation | Programmable 1-phase or 2-phase mode with active diode emulation; reduces switching losses below ~10% load. |
| Protection Features | OVP, UVP, OC Warn, OCP, OT Warn, OTP, VRHOT# output; discrete fault signaling enables fast system-level shutdown or throttling. |
| Supply Voltage | +3.3 V nominal; compatible with standard server management rails and eliminates need for auxiliary LDOs. |
| Operating Ambient | –40°C to +85°C; validated for enterprise server chassis environments with forced-air cooling. |
Pinout & Package
IR3590BMTRPBF uses a Pb-free, halogen-free, RoHS-compliant 5 mm × 5 mm QFN package with 40 pins and 0.4 mm pitch. Thermal pad exposed on bottom for enhanced heat dissipation in high-current VRMs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Controller core supply input | +3.3 V bias rail; powers internal logic, ADC, and I²C interface; requires local 1 µF ceramic decoupling. |
| GND (pins 21, 22, 39, 40, 41) | Power and signal ground reference | Multiple dedicated GND pins minimize ground bounce and improve ADC accuracy during high di/dt phase switching. |
| PWM1–PWM6 | Phase gate drive outputs | Push-pull outputs driving external high-side MOSFET gates; compatible with 3.3 V tri-state drivers and IR ATL series. |
| ISEN1–ISEN6 | Per-phase current sense inputs | Differential inputs for DCR or shunt-based current sensing; enable real-time per-phase current monitoring and phase shedding. |
| VRHOT# | Thermal alert output | Open-drain active-low signal triggered by thermistor-based overtemperature detection; used for system-level thermal throttling. |
| ALERT# | Configurable fault flag | Programmable output for OC Warn or other critical faults; supports interrupt-driven host controller response. |
| I²C SDA/SCL (SM_DIO/SM_CLK) | Serial management interface | Standard I²C bus interface (up to 400 kHz) for VOUT programming, telemetry readback, and MTP configuration. |
| EN | Enable input | Active-high logic input controlling startup sequence; unprogrammed parts require valid MTP config before enabling. |
Key Features
| Feature | Design Value |
|---|---|
| IR Adaptive Transient Algorithm (ATA) | Proprietary non-linear digital PWM reduces required bulk capacitance by >30% while maintaining <±1% VOUT deviation during 50–90% load steps. |
| Dynamic Phase Control | Automatically adds/drops phases based on real-time IOUT; maintains >90% efficiency from 5% to full load in 6-phase mode. |
| Variable Gate Drive | Adjusts high-side gate voltage (2.5–5.0 V) dynamically with load current to minimize MOSFET conduction and switching losses. |
| MTP Configuration Storage | On-chip multiple-time programmable memory eliminates external EEPROM, saves PCB area, and enables field-updatable VR settings. |
| Redundancy Support | 6+0 phase architecture with dead-phase detection and flagging ensures uninterrupted operation if one phase fails in mission-critical servers. |
Applications
| Server CPU VR | Server Memory VR |
|---|---|
Use Scenario: Primary voltage regulator for dual-socket Xeon Scalable processors in 2U/4U rack servers requiring phase redundancy and fast transient response. IC Role / Device Role / Timing Role: 6-phase digital buck controller managing per-phase current sharing, adaptive loop response, and telemetry reporting to BMC via I²C. Use Value: ATA algorithm reduces bulk cap count by 4–6 units per VR, lowering BOM cost and board area while meeting Intel VRD13/14 slew rate requirements. | Use Scenario: DDR4/DDR5 memory subsystem VR in high-density compute nodes where thermal margin and light-load efficiency are critical. IC Role / Device Role / Timing Role: Configurable 2-phase light-load mode with active diode emulation minimizes idle power; VRHOT# alerts memory controller before thermal throttling. Use Value: Achieves >85% efficiency at 5% load and <10 mV ripple under 10 A step load, extending memory module lifetime and stability. |
| Redundant PSU Module | AI Accelerator VR |
Use Scenario: Hot-swapable 1+1 redundant power module in carrier-grade telecom servers where continuous uptime is mandatory. IC Role / Device Role / Timing Role: Dead-phase protection and flagging enable automatic failover to backup phase set without host intervention or VR reset. Use Value: Maintains regulated 1.2 V output within ±10 mV during single-phase failure, preventing CPU cache corruption or PCIe link drop. | Use Scenario: Power delivery for NVIDIA A100/H100 GPU VRMs where rapid load transients (up to 1000 A/µs) demand ultra-fast loop response. IC Role / Device Role / Timing Role: Single-loop digital control with 2 MHz max switching frequency and ATA enables sub-10 µs recovery from 80% load steps. Use Value: Eliminates need for external analog compensators and reduces VRM footprint by 25% versus legacy 3-phase analog controllers. |
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 |
|---|---|---|---|
| ISL68127IRAZ-T | 7-phase capable; supports AVSBus for dynamic voltage scaling; no integrated VRHOT# output. | Better suited for AVS-integrated SoCs (e.g., AMD EPYC); lacks native thermistor-based thermal alert pin. | Select ISL68127 for AVS-capable platforms requiring fine-grained VDD_SOC adjustment; IR3590B preferred where VRHOT# simplifies thermal management. |
| MP2975GQZ-10 | 6-phase with PMBus 1.3; includes built-in 5 V LDO; no MTP-requires external EEPROM for config storage. | Lower BOM count due to integrated LDO but larger footprint; less suitable for space-constrained server DIMM slots. | Choose MP2975 for cost-sensitive designs needing integrated bias supply; IR3590B offers superior transient response and smaller QFN package. |
Compared with ISL68127 and MP2975, the IR3590BMTRPBF provides tighter thermal alert integration (VRHOT#), higher current scalability (510 A), and smaller 5×5 mm footprint-making it optimal for dense, thermally constrained server VRMs where redundancy and fast transient recovery are prioritized over AVS or integrated LDO functionality.
Availability
IR3590BMTRPBF is available at Aetrix Electronics and suitable for server CPU VR, server memory VR, and redundant PSU modules requiring stable component supply, long-term lifecycle support, and validated thermal performance in 85°C ambient environments.
Supply support for IR3590BMTRPBF 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 high-performance power management IC portfolio, emphasizing digital VR controllers for datacenter infrastructure.
The IR3590B belongs to Infineon's PowIRcenter™ digital multiphase controller family, designed specifically for enterprise server and AI accelerator power delivery systems requiring phase redundancy, adaptive transient response, and I²C/PMBus configurability.
FAQ
What is the minimum supported switching frequency per phase?
The IR3590BMTRPBF supports a minimum switching frequency of 200 kHz per phase. This lower bound enables use of larger, lower-cost inductors while maintaining stable regulation under steady-state loads. Frequency selection impacts trade-offs between efficiency, transient response, and EMI filtering complexity-200 kHz is typically selected for high-current, low-RPM fan-cooled server VRMs where conduction loss dominates.
Does IR3590BMTRPBF require external configuration before first power-up?
Yes. Unprogrammed IR3590BMTRPBF parts will not initiate startup until configured via I²C using the IR PowIRcenter GUI and stored in on-chip MTP memory. This safety feature prevents uncontrolled voltage ramp-up. Configuration includes VOUT setpoint, phase count, OCP thresholds, and telemetry scaling factors-no external EEPROM or hardware strapping is needed once programmed.
How does the IR3590B handle phase failure in redundant mode?
The IR3590B continuously monitors each phase's PWM activity and current sense signals. Upon detecting a dead phase (e.g., open-circuit gate driver or MOSFET failure), it asserts the dedicated dead-phase flag and automatically redistributes load across remaining functional phases without interrupting output regulation. The VRHOT# pin remains active only for thermal faults-not phase faults-ensuring independent fault classification.
Can IR3590BMTRPBF operate with 5 V gate drivers?
No. The IR3590BMTRPBF PWM outputs are designed for 3.3 V logic-level tri-state drivers (e.g., IR3598, IR35203) and are not rated for direct 5 V gate drive. Its Variable Gate Drive feature adjusts internal gate voltage (2.5–5.0 V) delivered *to the driver IC*, not to the MOSFET gate. Using 5 V drivers risks overvoltage damage to the controller's PWM pins and violates the absolute maximum rating of 3.6 V on PWMx outputs.
IR3590BMTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Type:
- PWM Signal
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 6
- 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
- Control Features:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-QFN (5x5)
IR3590BMTRPBF FAQ
1.How can I place an order for IR3590BMTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3590BMTRPBF 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 IR3590BMTRPBF reliable?
The price and inventory of IR3590BMTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3590BMTRPBF is usually 5 days.
3.What payment methods are accepted for IR3590BMTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3590BMTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3590BMTRPBF?
IR3590BMTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3590BMTRPBF 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 IR3590BMTRPBF?
For technical support, including IR3590BMTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3590BMTRPBF requirements.
6.How does Aetrix verify that IR3590BMTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3590BMTRPBF 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 IR3590BMTRPBF meets industry standards.
7.What is the process for return or replacement of IR3590BMTRPBF?
All IR3590BMTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3590BMTRPBF, 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 IR3590BMTRPBF part is unused and in its original packaging.
Return procedure for IR3590BMTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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