My Inquiry
My Account
Infineon Technologies IR38263MTRPBFAUMA1
- Part No.:
- IR38263MTRPBFAUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 34-PowerVFQFN
- Datasheet:
-
IR38263MTRPBFAUMA1.pdf
- Description:
- IC REG BUCK ADJ 30A 34PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,535
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IR38263MTRPBFAUMA1 from Infineon Technologies is a 30 A single-input synchronous buck regulator with integrated OptiMOS™ MOSFETs, PMBus™/I²C interface, and 3-bit PVID programming. It operates from 5.3–16 V input, delivers 0.5–0.875×PVin output voltage with ±0.5% reference accuracy, and supports programmable switching frequency up to 1.5 MHz for Intel VR13/VR12.5 CPU core power delivery.
For engineers reviewing the IR38263MTRPBFAUMA1 datasheet, IR38263MTRPBFAUMA1 pinout, IR38263MTRPBFAUMA1 application, or IR38263MTRPBFAUMA1 equivalent, key selection criteria include its thermally compensated current limit, true differential remote sensing, dedicated PGood with active-low enable monitoring, and post-package trimmed dead-time for high-efficiency 30 A point-of-load regulation.
Technical Context
This device integrates a PWM controller, dual co-packaged OptiMOS™ MOSFETs (RDS(on) = 2.2 mΩ top / 0.78 mΩ bottom), internal LDO for single-supply operation, and a full PMBus™ command set including voltage margining, sequencing, and fault threshold configuration. Its feedforward-enhanced control loop achieves tight line/load regulation across wide input and load transients.
The IC implements pulse-by-pulse current limiting with hiccup-mode OCP, thermal shutdown at 150°C, and pre-bias startup support. All critical parameters-including VOUT scaling, UVLO thresholds, OVP/OCP trip points, and PGood offset-are digitally configurable via PMBus™ or hardwired PVID pins, enabling system-level security and flexible power management in server VR applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 30 A continuous; supports high-current CPU core rails without external current sense amplifiers. |
| Input Voltage Range | 5.3–16 V; internal LDO enables single-rail operation without auxiliary bias supply. |
| Output Voltage Range | 0.5 V to 0.875×PVin; programmable via 3-bit PVID or PMBus™ for VR13/VR12.5 compliance. |
| Reference Accuracy | ±0.5% at 0–85°C; ensures precise voltage regulation under varying thermal and load conditions. |
| Switching Frequency | 150–1500 kHz; digitally adjustable for EMI optimization and inductor size trade-offs. |
| Thermal Resistance θJA | 11.1 °C/W; validated on 10-layer demo board, enabling 30 A operation at ≤125°C junction temperature. |
| MOSFET RDS(on) | Top: 2.2 mΩ, Bottom: 0.78 mΩ @ 25°C; minimizes conduction loss in high-current POL stages. |
Pinout & Package
IR38263MTRPBFAUMA1 uses a thermally enhanced 5 mm × 7 mm PQFN package with exposed thermal pad (PGND-connected) and 26-pin layout optimized for high-current DC/DC layout. Pin 12 and 25 are PGND; Pin 13 is LGND (single-point quiet ground); Pin 20 supplies digital logic (P1V8); Pins 14–16 implement 3-bit PVID selection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (1) | Main power stage input | Connects to bulk input capacitors; requires low-ESL/ESR decoupling near PGND for stable 30 A switching. |
| Boot (2) | High-side gate driver supply | Requires 0.1 µF capacitor to SW; 1 Ω series resistor mandatory if PVIN > 14 V to limit boot diode stress. |
| Enable (3) | Power-on control with UV monitoring | Active-high with 0.6 V start threshold; monitors Vin integrity before enabling regulation. |
| Vsns (5) | OVP and Power Good sense | Direct connection to local output capacitor; enables accurate overvoltage protection independent of enable state. |
| FB (6) | Error amplifier inverting input | Accepts direct or remote-sense feedback; sets output voltage via resistor divider or RS+/RS− differential pair. |
| PGood (11) | Open-drain status output | Asserts when VOUT is within ±10% of target; remains active during enable-low for safe sequencing. |
| SCL/SDA/SAlert# (17–19) | PMBus™ interface signals | 400 kHz I²C-compatible bus; supports address selection via ADDR pin resistor and fault alert reporting. |
| VIDSEL0–2 (14–16) | PVID code inputs | 3-bit parallel interface for static output voltage selection; pulled to VCC via 4.99 kΩ resistors. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated OptiMOS™ MOSFETs | Co-packaged 2.2 mΩ/0.78 mΩ FETs eliminate external driver design and reduce PCB area by >30% vs discrete solutions. |
| True Differential Remote Sensing | RS+/RS− inputs reject PCB trace IR drop, enabling ±0.5% output accuracy at the load under 30 A dynamic load steps. |
| Programmable Fault Thresholds | PMBus™-configurable OVP, OCP, UVLO, and thermal shutdown thresholds allow system-specific safety margins without hardware changes. |
| Enhanced Pre-Bias Start-up | Supports controlled ramp-up into pre-charged output rails-critical for multi-rail server platforms with staggered power sequencing. |
| Post-Package Trimmed Dead-Time | Factory-calibrated rising-edge dead-time minimizes shoot-through loss while maintaining robustness across process/voltage/temperature corners. |
Applications
| Intel® VR13 CPU Core Power | Server Memory Subsystem VR |
|---|---|
|
Use Scenario: Primary voltage regulator for Intel Xeon® processors requiring VR13-compliant transient response and telemetry. IC Role / Device Role / Timing Role: Fully integrated buck converter with PMBus™ telemetry, delivering 0.8–1.3 V at up to 30 A with <100 ns load-step response. Use Value: Eliminates need for external current sense, phase management IC, or discrete MOSFET drivers-reducing BOM count by 7+ components per rail. |
Use Scenario: Point-of-load regulator for DDR4/DDR5 memory VDD/VDDQ rails in high-density storage servers. IC Role / Device Role / Timing Role: Synchronous buck regulator with remote sensing and programmable soft-start to meet JEDEC memory voltage tolerance and slew rate requirements. Use Value: Achieves ±0.5% output accuracy at the DIMM connector under 20 A load transients, improving memory signal integrity and timing margin. |
| Telecom Baseband Processor VR | High-End Desktop GPU Auxiliary Rail |
|
Use Scenario: Secondary power rail for FPGA-based baseband processing units in 5G radio units with strict thermal envelope. IC Role / Device Role / Timing Role: Thermally optimized 30 A buck regulator with θJA = 11.1 °C/W and hiccup-mode OCP for unattended field operation. Use Value: Maintains full 30 A output at 85°C ambient without forced airflow-enabling fanless telecom chassis designs. |
Use Scenario: Dedicated GPU core voltage rail in enthusiast desktop motherboards supporting PCIe Gen5 graphics cards. IC Role / Device Role / Timing Role: High-bandwidth buck regulator with 1.5 MHz switching and feedforward compensation for fast GPU load-step response. Use Value: Reduces output voltage droop to <15 mV during 25 A/µs GPU load transients, preventing GPU throttling during gaming workloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8772GQ-Z (Monolithic Power) | 30 A rated, but lacks PVID interface and true differential remote sensing; only single-ended FB. | Targeted at cost-sensitive industrial PoL where PMBus™ telemetry is optional and load regulation <±1% is acceptable. | Select MP8772GQ-Z only if VR13 compliance, differential sensing, or programmable fault thresholds are not required. |
| TPS53689T (Texas Instruments) | 35 A rating, supports D-CAP3 control and CSD (current-summing detection), but no integrated LDO-requires external 5 V bias. | Optimized for multi-phase CPU VRs with phase interleaving; lacks single-rail 16 V operation capability of IR38263. | Choose TPS53689T when designing scalable multi-phase VRs with external phase controllers and existing 5 V bias infrastructure. |
Compared with MP8772GQ-Z and TPS53689T, IR38263MTRPBFAUMA1 uniquely combines single-supply 16 V operation, PVID + PMBus™ dual-programmability, and true differential remote sensing-making it the only solution qualified for Intel VR13-compliant single-phase CPU core rails with full telemetry and safety configurability.
Availability
IR38263MTRPBFAUMA1 is available at Aetrix Electronics and suitable for Intel VR13 CPU core power, server memory subsystem VRs, and telecom baseband processor power delivery requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for IR38263MTRPBFAUMA1 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 German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in silicon and silicon carbide power devices.
IR38263 belongs to the OptiMOS™ IPOL family-designed specifically for high-efficiency, high-current point-of-load regulation in datacenter and telecom infrastructure where digital telemetry, thermal robustness, and VR13/VR12.5 compliance are mandatory.
FAQ
What is the maximum allowable PVIN voltage for reliable operation?
The absolute maximum PVIN rating is 25 V, but recommended operating range is 5.3–16 V. Exceeding 16 V requires a 1 Ω resistor in series with the boot capacitor to prevent overstress of the internal high-side driver. Operation above 16 V voids the guaranteed performance specifications and may trigger thermal shutdown under full load.
Can IR38263MTRPBFAUMA1 operate without an external PMBus™ host controller?
Yes-it supports standalone operation using the 3-bit PVID interface (pins VIDSEL0–2) to select one of eight pre-programmed output voltages. All fault protections, remote sensing, and PGood functionality remain fully active without PMBus™ communication, making it suitable for fixed-voltage applications with minimal firmware overhead.
How does the remote sense amplifier handle PCB trace resistance between IC and load?
The RS+/RS− inputs form a true differential pair referenced to LGND, rejecting common-mode noise and voltage drop across PCB traces. When connected directly to the load's VDD and GND planes, it compensates for up to 50 mΩ of total trace resistance-ensuring ±0.5% output accuracy at the point of load under 30 A DC and transient conditions.
Is the thermal shutdown threshold adjustable via PMBus™?
No-the thermal shutdown threshold is fixed at 150°C junction temperature and cannot be modified. However, the PMBus™-configurable OT_Fault threshold allows setting a lower warning temperature (e.g., 115°C) to trigger SMBALERT# before shutdown, enabling system-level thermal management and graceful throttling.
IR38263MTRPBFAUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- 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):
- 1.5V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 14V
- Current - Output:
- 30A
- Frequency - Switching:
- 150kHz ~ 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-PQFN (5x7)
IR38263MTRPBFAUMA1 FAQ
1.How can I place an order for IR38263MTRPBFAUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IR38263MTRPBFAUMA1 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 IR38263MTRPBFAUMA1 reliable?
The price and inventory of IR38263MTRPBFAUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR38263MTRPBFAUMA1 is usually 5 days.
3.What payment methods are accepted for IR38263MTRPBFAUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR38263MTRPBFAUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR38263MTRPBFAUMA1?
IR38263MTRPBFAUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR38263MTRPBFAUMA1 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 IR38263MTRPBFAUMA1?
For technical support, including IR38263MTRPBFAUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR38263MTRPBFAUMA1 requirements.
6.How does Aetrix verify that IR38263MTRPBFAUMA1 is sourced from the original manufacturer or authorized distributors?
All IR38263MTRPBFAUMA1 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 IR38263MTRPBFAUMA1 meets industry standards.
7.What is the process for return or replacement of IR38263MTRPBFAUMA1?
All IR38263MTRPBFAUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IR38263MTRPBFAUMA1, 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 IR38263MTRPBFAUMA1 part is unused and in its original packaging.
Return procedure for IR38263MTRPBFAUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IR38263MTRPBFAUMA1 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
