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Infineon Technologies IR38164MTRPBFAUMA1
- Part No.:
- IR38164MTRPBFAUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 24-PowerVFQFN
- Datasheet:
-
IR38164MTRPBFAUMA1.pdf
- Description:
- IC REG BUCK ADJ 30A 24PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,692
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Product details
Overview
IR38164MTRPBFAUMA1 from Infineon is a fully integrated synchronous buck regulator with integrated MOSFET drivers, supporting 30 A continuous output current, Intel SVID v1.7/VR12.5/VR13 compliance, 0.5% reference accuracy, and programmable 500 kHz–1.5 MHz switching frequency. It delivers precise low-voltage power (0.5 V–0.875×PVIN) for CPU non-core rails including VCCIO and VCMP in server and high-end desktop platforms.
For engineers reviewing the IR38164MTRPBFAUMA1 datasheet, IR38164MTRPBFAUMA1 pinout, IR38164MTRPBFAUMA1 application, or IR38164MTRPBFAUMA1 equivalent, this device serves as a single-phase iPOL solution with PMBus™-programmable fault thresholds, true differential remote sensing, thermally compensated current limiting, and dedicated PGOOD with OVP active during disable.
Technical Context
The IR38164 implements a voltage-mode PWM controller with feedforward line regulation and an internal LDO enabling single 16 V input operation. Its SVID interface supports dynamic VID slew rate control, VR13HC set-work-point commands, and all-call addressing for multi-rail coordination.
It integrates dual MOSFET drivers with bootstrap diode, on-die temperature sensing, and a 12-bit ADC for telemetry of Vin, Vout, Iout, and die temperature. Fault protection includes hiccup-mode OCP, UVLO with adjustable threshold, and independent OVP using dedicated Vsns pin with offset DAC calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 30 A continuous; supports high-current CPU non-core rails without external current sense amplifiers. |
| Input Voltage Range | 5.5 V to 16 V PVIN; internal LDO enables single-supply operation without auxiliary bias rail. |
| Output Voltage Range | 0.5 V to 0.875×PVIN; covers VCCIO, VCMP, and other sub-1V Intel VR rails with SVID-programmable margining. |
| Reference Accuracy | ±0.5% over -40°C to +125°C; ensures tight output regulation across industrial temperature range. |
| Switching Frequency | 500 kHz to 1.5 MHz via PMBus™; allows optimization of size vs. efficiency in dense point-of-load designs. |
| Interface Protocol | SVID v1.7, I²C, PMBus™ v1.2; enables full telemetry, sequencing, fault logging, and dynamic voltage scaling in server BIOS. |
| Thermal Shutdown | Active at Tj > 150°C ±5°C with thermal derating curve; protects against sustained overload in enclosed systems. |
Pinout & Package
Package: 5 mm × 7 mm PQFN, 40-pin, exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN | Main power input for high-side FET | Connects to bulk input capacitors; requires low-ESL/ESR decoupling near PGND for stable high-frequency operation. |
| BOOT | Bootstrap supply for high-side gate driver | Requires 0.1 µF capacitor to SW; series 1 Ω resistor mandatory if PVIN > 14 V to limit boot diode stress. |
| ENABLE | Logic-level enable with voltage monitoring | Asserts internal startup sequence; monitors input voltage for UVLO and initiates soft-start when valid. |
| ADDR | PMBus™ address offset configuration | Resistor-to-LGND sets 4-bit address offset; supports up to 16 unique addresses on shared bus. |
| Vsns | Dedicated OVP and PGOOD sensing node | True differential remote sense input; remains active for overvoltage protection even when ENABLE is low. |
| FB | Inverting error amplifier input | Connected to output filter; used for closed-loop regulation; separate from Vsns to avoid sensing path conflicts. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MOSFET drivers + bootstrap diode | Eliminates external high-side gate drive components and discrete bootstrap diode, reducing BOM count and layout area. |
| True differential remote voltage sensing | Compensates for PCB trace IR drop between regulator and load, ensuring accurate load-point regulation under dynamic current steps. |
| Thermally compensated pulse-by-pulse current limit | Adjusts OCP threshold dynamically with junction temperature to maintain consistent current protection across operating range. |
| PMBus™-configurable fault thresholds | Allows system-level tuning of input UVLO, output OVP/OCP, and thermal shutdown limits without hardware changes. |
| Enhanced pre-bias start-up | Enables safe turn-on into pre-biased output without reverse current flow or output voltage overshoot. |
Applications
| VCCIO Power Rail | VCMP Power Rail |
|---|---|
Use Scenario: Supplies I/O voltage for Intel CPUs in VR13HC platforms requiring SVID-controlled sequencing and margining. IC Role / Device Role / Timing Role: Single-phase iPOL regulator providing tightly regulated 0.95 V ±1% with dynamic VID updates and telemetry reporting. Use Value: Enables BIOS-level voltage margining and real-time current monitoring for platform validation and reliability testing. | Use Scenario: Powers cache/memory controller voltage domain in high-end desktop and server CPUs. IC Role / Device Role / Timing Role: SVID-compliant buck converter delivering 1.05 V at up to 30 A with fast transient response and hiccup-mode OCP. Use Value: Supports rapid voltage transitions during turbo boost states while maintaining output stability under 10 A/µs load steps. |
| Telecom Point-of-Load | Datacom ASIC Core Supply |
Use Scenario: Provides isolated 0.8 V rail for FPGA I/O banks in telecom line cards with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with programmable 1.2 MHz switching and integrated thermal shutdown. Use Value: Achieves >92% peak efficiency at 12 V input/0.8 V@20 A, reducing board-level heat density in fanless enclosures. | Use Scenario: Delivers 0.75 V to high-performance datacom ASICs requiring precise voltage tracking and fault logging. IC Role / Device Role / Timing Role: PMBus™-managed regulator with real-time telemetry of die temperature and output current via integrated ADC. Use Value: Enables predictive thermal management and automated fault diagnostics in carrier-grade network equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SVID-compliant single-phase buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL91302BHRZ-T7A | 2-phase interleaved design; higher integration (dual output); no SVID support; uses I²C only. | Targeted at mobile SoC power delivery; lacks VR12.5/VR13 protocol stack and dedicated Vsns OVP path. | Select only for non-Intel platforms requiring dual-output capability and lower quiescent current. |
| TPS53679RSMT | Supports SVID v1.7 and VR13; 40 A rating; requires external MOSFETs; larger footprint (7 mm × 7 mm). | Used in core CPU VRs with higher current demand; lacks integrated drivers and bootstrap diode. | Choose when >30 A output or discrete FET selection for thermal partitioning is required. |
Compared with ISL91302BHRZ-T7A and TPS53679RSMT, the IR38164MTRPBFAUMA1 uniquely combines SVID compliance, integrated drivers, true differential Vsns, and compact 5 mm × 7 mm PQFN-making it optimal for space-constrained, Intel-compatible non-core VRs where component count and layout simplicity are critical.
Availability
IR38164MTRPBFAUMA1 is available at Aetrix Electronics and suitable for server motherboard power delivery, high-end desktop CPU I/O rails, telecom point-of-load conversion, and datacom ASIC supply applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for IR38164MTRPBFAUMA1 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 OptiMOS™ MOSFETs and intelligent power solutions.
The IR38164 belongs to Infineon's iPOL family of integrated POL regulators, designed specifically for Intel SVID-compliant, single-phase CPU non-core power rails in servers and high-performance computing platforms.
FAQ
What input voltage range does the IR38164MTRPBFAUMA1 support?
The IR38164MTRPBFAUMA1 operates from 5.5 V to 16 V on its PVIN pin. Its internal LDO allows full functionality-including gate driving and logic-using only this single input rail, eliminating the need for a separate 5 V or 3.3 V bias supply in most implementations.
Does the IR38164MTRPBFAUMA1 support remote voltage sensing?
Yes-it features true differential remote sensing via dedicated Vsns and RS+/RS− pins. This path is independent of the FB loop and remains active for overvoltage protection and PGOOD generation even when the ENABLE pin is deasserted.
How is the PMBus™ address configured on the IR38164MTRPBFAUMA1?
The ADDR pin accepts a resistor to LGND to set a 4-bit address offset. Combined with the base address (default 0x60), this allows up to 16 unique addresses (0x60–0x6F) on a shared PMBus™ bus, supporting multi-rail coordination without address conflict.
What protection features are implemented in hardware versus firmware?
Hardware protections include thermal shutdown (150°C), input UVLO (adjustable via VIN_UV_DAC), output OVP (via Vsns offset DAC), and hiccup-mode OCP with thermally compensated current limit. Firmware-configurable features include PMBus™-set fault thresholds, soft-start time, and dynamic VID slew rate-all enforced by on-chip logic without host intervention.
IR38164MTRPBFAUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 24-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:
- 500kHz ~ 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-PQFN (5x7)
IR38164MTRPBFAUMA1 FAQ
1.How can I place an order for IR38164MTRPBFAUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IR38164MTRPBFAUMA1 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 IR38164MTRPBFAUMA1 reliable?
The price and inventory of IR38164MTRPBFAUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR38164MTRPBFAUMA1 is usually 5 days.
3.What payment methods are accepted for IR38164MTRPBFAUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR38164MTRPBFAUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR38164MTRPBFAUMA1?
IR38164MTRPBFAUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR38164MTRPBFAUMA1 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 IR38164MTRPBFAUMA1?
For technical support, including IR38164MTRPBFAUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR38164MTRPBFAUMA1 requirements.
6.How does Aetrix verify that IR38164MTRPBFAUMA1 is sourced from the original manufacturer or authorized distributors?
All IR38164MTRPBFAUMA1 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 IR38164MTRPBFAUMA1 meets industry standards.
7.What is the process for return or replacement of IR38164MTRPBFAUMA1?
All IR38164MTRPBFAUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IR38164MTRPBFAUMA1, 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 IR38164MTRPBFAUMA1 part is unused and in its original packaging.
Return procedure for IR38164MTRPBFAUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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