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Infineon Technologies IR38063MTRPBF
- Part No.:
- IR38063MTRPBF
- Manufacturer:
- Infineon Technologies
- Package:
- 34-PowerVFQFN
- Datasheet:
-
IR38063MTRPBF.pdf
- Description:
- IC REG BUCK ADJ 25A IQFN-34-900
- Quantity:
- Payment:
- Shipping:
Inventory:9,715
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Product details
Overview
IR38063MTRPBF from Infineon Technologies (formerly International Rectifier) is a synchronous buck DC-DC converter with integrated high- and low-side MOSFETs, PMBus/I²C interface, and digital configurability for output voltage, soft-start, protection thresholds, and switching frequency. It delivers up to 25 A at 1.2 V from a 12 V input in a 5 mm × 7 mm PQFN package, targeting point-of-load regulation in server VRMs, telecom power supplies, and FPGA/ASIC core rails.
For engineers reviewing the IR38063MTRPBF datasheet, IR38063MTRPBF pinout, IR38063MTRPBF application, or IR38063MTRPBF equivalent, key selection criteria include its 600 kHz fixed switching frequency, true differential remote sensing, pre-bias startup capability, temperature-compensated overcurrent protection via RDS(on) sensing, and internal 1.8 V LDO for digital logic supply.
Technical Context
The IR38063 implements a digitally enhanced voltage-mode control architecture with feed-forward line regulation and external frequency synchronization support. Its PMBus v1.2 compliance enables real-time telemetry (VOUT, IOUT, TDIE, VIN) and programmable fault responses including hiccup-mode short-circuit recovery.
Protection functions are hardware-asserted and independent of digital communication: input UVLO (4.5 V typ), input OVP (14.5 V typ), output OVP (1.26 V typ), and thermal shutdown (>150 °C). The device supports both FCCM and PFM modes via the En/FCCM pin and uses internal current-sense amplification for accurate IMON reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 25 A continuous - supports high-density CPU/GPU core rail applications without external current sharing. |
| Input Voltage Range | 4.5 V to 14 V - compatible with standard 12 V intermediate bus architectures and accommodates transient overshoot. |
| Output Voltage Range | 0.5 V to 3.3 V (programmable via PMBus) - covers DDR, SoC, and FPGA core supply requirements with 0.5% accuracy. |
| Switching Frequency | 600 kHz fixed - balances efficiency, size, and EMI; supports external sync for multi-phase coherence. |
| Package | 5 mm × 7 mm PQFN-26 - thermally optimized for PCB copper pour integration and >3 W dissipation at 25 A. |
| Remote Sensing | True differential (RS+, RS−) - eliminates PCB trace IR drop errors for sub-10 mV regulation accuracy at load. |
| Protections | UVLO, OVP (input/output), OCP (RDS(on)-based), thermal shutdown, and Power Good assertion - autonomous fault handling without host intervention. |
Pinout & Package
IR38063MTRPBF is housed in a thermally enhanced 26-pin PQFN package (5 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (EP) on underside for direct PCB thermal coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vin | Primary input supply | Accepts 4.5–14 V; powers internal LDOs and gate drivers; no external Vcc required. |
| SW | Power switch node | Connects to external inductor; carries full switching current and high dv/dt. |
| PGnd | Power ground return | Separate low-impedance path for high-current switching loop; must be tied to EP and input/output capacitors. |
| LGnd | Analog ground reference | Isolated ground for feedback, sensing, and digital circuits; connected to PGnd at single point. |
| FB | Feedback input | High-impedance node for resistor-divider programming; used only in local-sense configuration. |
| RS+, RS− | Differential remote sense inputs | Measure load voltage directly at point-of-load; enable <10 mV regulation error under dynamic load. |
| SCL/OCSet | I²C clock / Overcurrent threshold set | Configurable as PMBus SCL or analog OC trip level adjustment via external resistor. |
| SDA/IMON | I²C data / Current monitor output | Provides bidirectional PMBus communication or analog IMON voltage proportional to load current. |
| PGood | Power-good status signal | Open-drain output asserting high when Vout is within ±5% of target and no faults detected. |
| En/FCCM | Enable / Fixed-frequency mode control | Active-high enable; pull high for FCCM, low for PFM; overrides PMBus command during startup. |
| Rt/Sync | Frequency setting / Sync input | Resistor-programmed fSW or accepts external clock for phase alignment in multi-rail systems. |
| Vp | Power-good pull-up | Internal 100 kΩ pull-up to P1V8; used to bias Track_En for tracking operation. |
| Track_En | Tracking enable | Enables voltage tracking with master rail when pulled to P1V8; requires 0 Ω resistor for activation. |
| ADDR | PMBus address select | Three-state pin (VIN, GND, or open) sets one of eight unique PMBus addresses for multi-device buses. |
| P1V8 | Internal 1.8 V LDO output | Supplies internal digital core; can power external logic or serve as reference for Track_En. |
| NC1, NC2 | No-connect terminals | Unbonded pins; must remain unconnected per datasheet to avoid latch-up or parametric shift. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual MOSFETs | Low RDS(on) high-side (5.5 mΩ) and low-side (2.2 mΩ) FETs eliminate external driver and layout complexity. |
| PMBus v1.2 compliance | Full support for READ_VOUT, READ_IOUT, READ_TEMPERATURE, OPERATION, and ON_OFF_CONFIG commands with CRC. |
| Pre-bias startup | Safe turn-on into precharged output (down to 0.35 V) without reverse current or output collapse. |
| Feed-forward line regulation | Dynamic compensation of input voltage transients improves load-step response by >30% vs. standard voltage-mode control. |
| Thermal-compensated OCP | Current limit adjusts with die temperature to maintain consistent trip point across −40 °C to +125 °C ambient. |
| True differential remote sensing | Independent RS+ and RS− inputs reject common-mode noise and eliminate PCB trace resistance error. |
Applications
| Server CPU Core Rail | Telecom Baseband Processor |
|---|---|
|
Use Scenario: Regulating 1.2 V @ 25 A for high-performance x86 CPU cores in 1U rack servers with strict thermal and transient response requirements. IC Role / Device Role / Timing Role: Primary point-of-load (POL) regulator with PMBus telemetry for dynamic voltage scaling and health monitoring. Use Value: 600 kHz switching enables compact 0.215 µH inductor; remote sensing maintains ±5 mV regulation at 25 A load step (10–90% in 1 µs). |
Use Scenario: Powering multi-core baseband processors in 5G macrocell radios requiring fast load transient response and thermal margining. IC Role / Device Role / Timing Role: Digitally configurable POL converter synchronized to system clock for EMI reduction and phase interleaving. Use Value: Pre-bias startup allows hot-swap insertion; hiccup-mode OCP prevents thermal runaway during antenna mismatch events. |
| FPGA I/O Bank Supply | Industrial PLC FPGA Core |
|
Use Scenario: Delivering 1.8 V @ 15 A to FPGA I/O banks with tight voltage tolerance (±2%) and simultaneous switching noise immunity. IC Role / Device Role / Timing Role: Secondary POL regulator with differential remote sensing to compensate for backplane voltage drop. Use Value: True differential sensing rejects common-mode noise from adjacent high-speed SerDes lanes; <10 µV RMS ripple ensures signal integrity. |
Use Scenario: Providing 0.85 V @ 20 A to industrial-grade FPGA cores operating in extended temperature environments (−40 °C to +85 °C). IC Role / Device Role / Timing Role: Robust POL controller with thermal-compensated OCP and wide-input range for unregulated 12 V DC distribution. Use Value: Internal LDOs eliminate need for auxiliary supplies; 150 °C thermal shutdown protects against enclosure overheating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53689RTAT | 600 kHz, 30 A, 4.5–16 V input; PMBus v1.3; includes D-CAP3 control but no pre-bias startup. | Lacks pre-bias capability and true differential remote sensing; uses single-ended VSENSE. | Select when higher current headroom and latest PMBus features outweigh need for pre-bias or precision remote sensing. |
| MP8765GL-Z | 500 kHz, 25 A, 4.5–16 V input; I²C-only (non-PMBus); no telemetry, no thermal OCP compensation. | No digital telemetry or temperature-adaptive protection; limited configurability and fault logging. | Choose for cost-sensitive industrial applications where basic regulation suffices and host telemetry is unnecessary. |
Compared with TPS53689RTAT and MP8765GL-Z, IR38063MTRPBF uniquely combines pre-bias startup, true differential remote sensing, and temperature-compensated OCP in a 5×7 mm footprint-making it optimal for high-reliability, digitally managed POL systems where output accuracy and fault resilience are critical.
Availability
IR38063MTRPBF is available at Aetrix Electronics and suitable for server CPU core rails, telecom baseband processors, and FPGA I/O bank supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for IR38063MTRPBF 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and industrial control ICs with emphasis on energy efficiency and system reliability.
The IR38063 belongs to Infineon's SupIRBuck™ family of integrated POL regulators, designed specifically for high-current, digitally controlled point-of-load applications in datacenter, networking, and high-end computing infrastructure.
FAQ
What is the recommended input capacitor configuration for IR38063MTRPBF at 25 A output?
Per the IRDC38063-P1V2 evaluation board design, use four 22 µF 1206 ceramic capacitors (X5R, 25 V) in parallel with one optional 330 µF electrolytic capacitor. This configuration minimizes input ripple (<50 mVpp) and provides sufficient charge reservoir for 25 A load steps while maintaining stability across temperature and aging.
Does IR38063MTRPBF support output voltage margining via PMBus?
Yes. The device supports PMBus commands READ_VOUT, VOUT_COMMAND, and MARGIN_HIGH/MARGIN_LOW to adjust output voltage ±5% around nominal setting. Margining is implemented digitally with 0.5% accuracy and does not require external DACs or resistors.
Can IR38063MTRPBF operate without an external clock or PMBus host?
Yes. It operates autonomously with default settings: 1.2 V output, 600 kHz switching, and enabled protections. All configuration pins (ADDR, Rt/Sync, Track_En) have internal pull-ups/downs, allowing standalone use with no PMBus connection required.
What thermal management guidelines apply to the PQFN-26 package?
The exposed thermal pad must be soldered to ≥4 cm² of 2 oz copper on inner layer 2 with ≥8 thermal vias (0.3 mm diameter, 0.6 mm pitch) connecting to solid ground planes. Junction-to-board thermal resistance is 2.5 °C/W; derating begins above 115 °C case temperature at 25 A.
IR38063MTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SupIRBuck®
- Package/Case:
- 34-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.2V
- Voltage - Input (Max):
- 21V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 18.38V
- Current - Output:
- 25A
- Frequency - Switching:
- 400kHz ~ 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-IQFN-34-900
IR38063MTRPBF FAQ
1.How can I place an order for IR38063MTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR38063MTRPBF 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 IR38063MTRPBF reliable?
The price and inventory of IR38063MTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR38063MTRPBF is usually 5 days.
3.What payment methods are accepted for IR38063MTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR38063MTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR38063MTRPBF?
IR38063MTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR38063MTRPBF 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 IR38063MTRPBF?
For technical support, including IR38063MTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR38063MTRPBF requirements.
6.How does Aetrix verify that IR38063MTRPBF is sourced from the original manufacturer or authorized distributors?
All IR38063MTRPBF 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 IR38063MTRPBF meets industry standards.
7.What is the process for return or replacement of IR38063MTRPBF?
All IR38063MTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR38063MTRPBF, 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 IR38063MTRPBF part is unused and in its original packaging.
Return procedure for IR38063MTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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