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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Infineon Technologies IR38265MTRPBFAUMA1

Name: IR38265MTRPBFAUMA1
Brand: Infineon Technologies
SKU: IR38265MTRPBFAUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR38265MTRPBFAUMA1

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 34-PowerVFQFN

Datasheet:: IR38265MTRPBFAUMA1.pdf

Description:: IC REG BUCK ADJ 30A 34PQFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IR38265MTRPBFAUMA1 from Infineon Technologies is a 30A single-input synchronous buck DC-DC converter with integrated OptiMOS™ power stages, PVID interface, and full PMBus/I²C programmability. It delivers 0.5V–0.875×PV_IN output voltage with ±0.5% reference accuracy, supports 150 kHz–1.5 MHz switching frequency, and operates from 5.3V–16V input using internal LDO biasing - enabling single-rail 16V system operation in Intel VR13/VR12.5 CPU voltage regulation.

For engineers reviewing the IR38265MTRPBFAUMA1 datasheet, IR38265MTRPBFAUMA1 pinout, IR38265MTRPBFAUMA1 application, or IR38265MTRPBFAUMA1 equivalent, key selection criteria include its thermally compensated current limit, true differential remote sensing, I²C-configurable fault thresholds (OVP/OCP/UVLO/thermal), and post-package trimmed dead-time for high-efficiency, high-current point-of-load conversion in server and telecom power delivery.

Technical Context

The IR38265 implements a voltage-mode PWM controller with feedforward line regulation and an integrated dual-MOSFET power stage optimized for low-duty-cycle, high-current operation. Its on-die error amplifier features 100–120 dB DC gain, 20–40 MHz GBWP, and rail-to-rail output swing (100 mV–4.3 V), supporting stable loop compensation across wide load and input transients.

It integrates dedicated analog sensing paths for input voltage, output voltage, output current, and die temperature - digitized via on-chip ADC and reported over I²C. Fault response includes hiccup-mode OCP, programmable UVEN threshold (0.35–0.65 V), and independent PGOOD logic that remains active even when ENABLE is deasserted.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	30 A continuous - supports high-current CPU core/non-core rails without external current sharing.
Input Voltage Range	5.3 V–16 V with internal LDO - eliminates need for auxiliary bias supply in 12 V/15 V bus systems.
Output Voltage Range	0.5 V–0.875×PV_IN - enables adaptive scaling for VR13/VR12.5 compliance down to sub-0.6 V.
Reference Accuracy	±0.5% at 0°C–85°C - ensures tight output regulation under nominal thermal conditions.
Switching Frequency	150 kHz–1.5 MHz, I²C-programmable - allows optimization of size (inductor/capacitor) vs. efficiency vs. EMI.
R_DS(on) Top/Bottom	2.2 mΩ / 0.78 mΩ @ 25°C - minimizes conduction loss and thermal rise at 30 A load.
Junction Temp Range	−40°C to +125°C - qualified for industrial and server-grade thermal environments.

Pinout & Package

IR38265MTRPBFAUMA1 is housed in a thermally enhanced 5 mm × 7 mm PQFN package with exposed thermal pad (PGND-connected) and 26-pin layout optimized for high-current power delivery and signal integrity.

Pin/Terminal	Circuit Role	Design Meaning
PVIN	Main power input for high-side MOSFET	Bypassed directly to PGND; supports up to 16 V with 25 V absolute max rating.
BOOT	High-side gate driver bootstrap supply	Requires 0.1 µF capacitor to SW; 1 Ω series resistor mandatory if PVIN > 14 V.
ENABLE	Global enable with voltage monitoring	UVLO thresholds: 0.35–0.65 V; leakage < 1 µA ensures low standby power.
Vsns / RS+ / RS−	Differential remote sense inputs	Enables true Kelvin sensing at load; isolates feedback from PCB IR drop.
VIDSEL0–2	3-bit parallel VID select lines	Directly map to internal voltage registers; pulled to VCC via 4.99 kΩ resistors.
SDA / SCL	I²C bidirectional data/clock	Supports Fast Mode (400 kHz) and PMBus commands for sequencing, margining, and telemetry.
PGOOD	Open-drain power-good status	Active-high after valid output; remains functional even when ENABLE = low.

Key Features

Feature	Design Value
Integrated OptiMOS™ Power Stage	Co-packaged top/bottom MOSFETs with R_DS(on) of 2.2 mΩ / 0.78 mΩ reduce board area and parasitic losses.
True Differential Remote Sensing	RS+/RS− inputs reject common-mode noise and PCB voltage drop, ensuring accurate load regulation.
I²C-Configurable Fault Thresholds	OVP, OCP, UVLO, and thermal shutdown thresholds are digitally adjustable - enabling system-specific safety margins.
Enhanced Pre-Bias Start-up	Allows safe startup into pre-biased output without reverse current or overshoot - critical for multi-rail sequencing.
Post-Package Trimmed Dead-Time	Minimizes shoot-through risk while maximizing efficiency; calibrated per unit during final test.

Applications

Intel® VR13 CPU Core Rail

Server Non-Core VR (VCCIO/VCCSA)

Use Scenario: Regulating CPU core voltage in dual-socket Xeon Scalable platforms with dynamic VID updates.

IC Role / Device Role / Timing Role: Primary point-of-load regulator executing VR13 protocol via PVID and I²C telemetry.

Use Value: ±0.5% reference accuracy and feedforward regulation maintain < ±10 mV load transient deviation at 30 A step.

Use Scenario: Powering memory I/O and system agent rails requiring independent sequencing and margining.

IC Role / Device Role / Timing Role: Secondary VR with autonomous fault handling and PMBus-based health reporting.

Use Value: I²C-configurable OCP thresholds prevent false trips during burst-mode DDR4/DDR5 traffic.

Telecom Baseband Processor VR

Enterprise SSD Controller Power

Use Scenario: Supplying 0.8 V @ 25 A to FPGA-based baseband processors in 5G radio units.

IC Role / Device Role / Timing Role: High-efficiency buck converter with thermal shutdown and remote sensing for compact heatsinkless design.

Use Value: 125°C junction rating and θ_JA = 11.1°C/W enable operation in sealed, fanless enclosures.

Use Scenario: Delivering tightly regulated 1.1 V to NVMe controller ASICs with fast transient response.

IC Role / Device Role / Timing Role: Low-noise, high-bandwidth POL regulator with programmable PGOOD delay and soft-start.

Use Value: 35 ns minimum pulse width and 20 V/µs slew rate support < 1 µs load-step recovery time.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current, I²C-programmable buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ISL9122AIRTZ-T7A	20 A rated; no integrated MOSFETs - requires external power stage; supports only I²C (no PVID).	Limited to lower-current SoC rails; lacks VR13-compliant VID decoding and differential remote sense.	Select when board space permits discrete FETs and VR13 compatibility is not required.
MP8770GQ-Z	30 A rated; no PMBus/I²C telemetry - only basic enable/fault pins; fixed 500 kHz–2.2 MHz frequency.	Suitable for cost-sensitive industrial rails but cannot report real-time current/temp or support margining.	Select when telemetry, sequencing, and digital fault tuning are unnecessary.

Compared with ISL9122AIRTZ-T7A and MP8770GQ-Z, IR38265MTRPBFAUMA1 uniquely combines VR13 PVID decoding, full PMBus telemetry, and co-packaged OptiMOS™ FETs - delivering higher integration, tighter regulation, and system-level security for mission-critical server and telecom POL designs.

Availability

IR38265MTRPBFAUMA1 is available at Aetrix Electronics and suitable for Intel VR13 CPU voltage regulation, server non-core power delivery, and telecom baseband processor applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for IR38265MTRPBFAUMA1 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 MCUs, and RF solutions, with leadership in silicon carbide and advanced MOSFET technologies.

The IR38265 belongs to Infineon's OPTIMOS™ IPOL family - engineered specifically for high-efficiency, digitally controllable point-of-load conversion in next-generation server, desktop, and communications infrastructure where VR13/VR12.5 compliance and telemetry-driven power management are essential.

FAQ

What is the maximum allowable PVIN voltage for reliable operation?

The absolute maximum PVIN rating is 25 V, but recommended operating range is 1.5 V–16 V. Exceeding 16 V violates the Recommended Operating Conditions and risks violating the BOOT-to-SW voltage limit (6.5 V AC peak). For PVIN > 14 V, a 1 Ω resistor must be placed in series with the BOOT capacitor to limit inrush current and prevent overstress.

How does the IR38265 handle startup into a pre-biased output?

The IR38265 implements enhanced pre-bias start-up logic that monitors VOUT before enabling the high-side switch. It delays gate drive until the output voltage falls below the target setpoint, preventing reverse current flow and output overshoot. This behavior is hardware-automated and requires no external configuration or I²C command.

Can the PGOOD signal remain active when ENABLE is deasserted?

Yes. The PGOOD circuitry is powered independently from the main control logic and remains fully operational even when ENABLE is low. It continues to monitor output voltage against programmable OVP/UVP thresholds and asserts open-drain PGOOD only when VOUT is within the valid window - providing fail-safe power-status indication during standby or sequencing phases.

What is the purpose of the ADDR pin, and how is it configured?

The ADDR pin sets the LSB of the 7-bit I²C address by connecting a resistor to LGND. A 10 kΩ resistor yields address 0x60; 100 kΩ yields 0x61; open circuit yields 0x62. The device supports up to 16 unique addresses via external resistor selection, enabling multiple IR38265s on the same I²C bus without address conflict.

IR38265MTRPBFAUMA1 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)

IR38265MTRPBFAUMA1 FAQ

1.How can I place an order for IR38265MTRPBFAUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IR38265MTRPBFAUMA1 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 IR38265MTRPBFAUMA1 reliable?

The price and inventory of IR38265MTRPBFAUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR38265MTRPBFAUMA1 is usually 5 days.

3.What payment methods are accepted for IR38265MTRPBFAUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR38265MTRPBFAUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR38265MTRPBFAUMA1?

IR38265MTRPBFAUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR38265MTRPBFAUMA1 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 IR38265MTRPBFAUMA1?

For technical support, including IR38265MTRPBFAUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR38265MTRPBFAUMA1 requirements.

6.How does Aetrix verify that IR38265MTRPBFAUMA1 is sourced from the original manufacturer or authorized distributors?

All IR38265MTRPBFAUMA1 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 IR38265MTRPBFAUMA1 meets industry standards.

7.What is the process for return or replacement of IR38265MTRPBFAUMA1?

All IR38265MTRPBFAUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IR38265MTRPBFAUMA1, 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 IR38265MTRPBFAUMA1 part is unused and in its original packaging.

Return procedure for IR38265MTRPBFAUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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