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

Infineon Technologies IR38063MBC01TRP

Name: IR38063MBC01TRP
Brand: Infineon Technologies
SKU: IR38063MBC01TRP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR38063MBC01TRP

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 34-PowerVFQFN

Datasheet:: IR38063MBC01TRP.pdf

Description:: IC REG BUCK ADJ 25A IQFN-34-900

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IR38063MBC01TRP from Infineon Technologies is a 25 A synchronous buck DC/DC regulator with integrated MOSFETs, PMBus/I²C interface, and internal LDO enabling single 21 V input operation. It delivers 0.5–0.875×PV_IN output voltage with 0.5% reference accuracy, supports up to 1.5 MHz switching frequency, and operates across –40°C to +125°C junction temperature in a 5 mm × 7 mm PQFN package. Used in Broadcom SAS34xx–SAS37xx storage controller power rails.

For engineers reviewing the IR38063MBC01TRP datasheet, IR38063MBC01TRP pinout, IR38063MBC01TRP application, or IR38063MBC01TRP equivalent, key selection considerations include its dual-mode (analog/digital) configuration, thermally compensated current limit, remote differential sensing, dedicated OVP/PGood protection active during disable, and 66 PMBus commands for telemetry and fault management.

Technical Context

The IR38063 implements a digitally enhanced PWM controller with internal high-side (2.7–5.6 mΩ) and low-side (1.11–2.05 mΩ) MOSFETs, supporting both analog mode (Rt/Sync resistor-set frequency) and digital mode (PMBus-configurable parameters). Its block diagram integrates a remote sense amplifier, error amplifier with COMP pin for loop compensation, and dedicated voltage monitoring on EN/FCCM and Vsns pins.

It features true differential remote sensing (RS+/RS−), pre-bias soft-start, smooth external synchronization capability, and independent PGood generation tied to Vsns - remaining functional even when EN is low. The internal LDO powers the control logic from Vin (5.5–21 V), eliminating need for external bias supply.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	25 A continuous - supports high-current point-of-load rails for SAS host bus adapters and storage controllers.
Input Voltage Range	1.2–21 V PV_IN; 5.5–21 V Vin - enables single-rail operation without auxiliary bias supply via internal LDO.
Output Voltage Range	0.5 V to 0.875×PV_IN - programmable for sub-1 V core supplies with tight regulation at low V_OUT.
Reference Accuracy	±0.5% at 25°C, ±1.0% over –40°C to +125°C - ensures stable output under thermal stress in server environments.
Switching Frequency	225–1650 kHz - adjustable via Rt resistor or PMBus; supports high-density layout with small magnetics.
PMBus Interface	400 kHz Fast Mode I²C-compatible - provides 66 commands for real-time telemetry, sequencing, fault logging, and configuration storage.
Junction Temp Range	–40°C to +125°C - qualified for industrial and enterprise storage applications with sustained thermal load.

Pinout & Package

IR38063MBC01TRP uses a thermally enhanced 5 mm × 7 mm PQFN package with exposed thermal pad (PGND-connected), 26-pin layout, and internally connected pins 23 and 26. Package complies with RoHS and supports reflow soldering per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
PVIN	Main power stage input	Bypassed directly to PGND; accepts 1.2–21 V; requires local 4×22 µF + 0.1 µF decoupling.
Boot	High-side gate driver supply	Connected via 0.1 µF capacitor to SW; series resistor recommended for PV_IN > 16 V.
Track_EN#	Tracking enable control	Pulled low to activate tracking; otherwise biased to P1V8 (100 kΩ) or LGND (750 kΩ) to disable.
Vsns	OVP and PGood sense input	Dedicated overvoltage monitoring path; remains active even when EN = low.
FB	Error amplifier inverting input	Connected to output or remote sense divider; sets regulated V_OUT with ±0.5% reference accuracy.
RT/Sync	Frequency setting / sync input	Resistor-to-GND sets f_SW in analog mode; accepts external clock in digital mode.
EN/FCCM	Enable / forced CCM mode	Active-high enable; <3.1 V forces continuous conduction mode in analog operation.
SALERT#/TMON	Alert output / analog temp monitor	Open-drain SMBALERT#; outputs voltage proportional to T_J in analog-only use.
SDA/IMON	Data I/O / analog current monitor	Provides output current telemetry as analog voltage when PMBus disabled.
SCL/OCSet	Clock input / analog OCP set	Configures overcurrent threshold via resistor divider in analog mode (e.g., 4.7 kΩ).

Key Features

Feature	Design Value
Integrated Power Stage	Low R_DS(on) top (2.7–5.6 mΩ) and bottom (1.11–2.05 mΩ) MOSFETs eliminate external FETs and bootstrap diode.
Dual-Mode Operation	Runs unconfigured as analog regulator or fully programmed via PMBus - no firmware required for basic function.
True Differential Remote Sensing	RS+/RS− inputs measure load voltage at point-of-use, compensating for PCB IR drop in high-current SAS systems.
Thermally Compensated OCL	Current limit adjusts with junction temperature to maintain safe SOA across full operating range.
Pre-Bias Soft-Start	Enables safe startup into pre-charged output capacitors - critical for hot-swap and multi-rail sequencing in storage controllers.

Applications

Broadcom SAS Host Bus Adapters

Enterprise SSD Power Management

Use Scenario: Power delivery for Broadcom SAS34xx–SAS37xx controller ICs requiring tightly regulated 0.6–0.85 V core supplies at up to 25 A.

IC Role / Device Role / Timing Role: Primary point-of-load regulator with PMBus telemetry for thermal and current monitoring in RAID/HBA subsystems.

Use Value: Enables real-time health reporting and dynamic margining via 66 PMBus commands, improving system reliability in datacenter storage arrays.

Use Scenario: High-efficiency, low-noise power rail for NVMe SSD controller and NAND flash interface logic in enterprise SSD modules.

IC Role / Device Role / Timing Role: Synchronous buck converter with remote sensing and pre-bias start-up supporting hot-plug SSD insertion.

Use Value: Maintains stable V_OUT under transient load steps while providing analog current/voltage/temperature telemetry without PMBus overhead.

Distributed Server Point-of-Load

Telecom Baseband Processing

Use Scenario: Compact, thermally robust POL solution for FPGA or ASIC core rails in 1U/2U rack servers where board space and airflow are constrained.

IC Role / Device Role / Timing Role: Digitally configurable buck regulator with integrated MOSFETs and 5×7 mm footprint minimizing PCB area.

Use Value: Reduces BOM count by integrating power stage and LDO, while PMBus support simplifies system-level power sequencing and fault diagnostics.

Use Scenario: Powering baseband processors and SerDes interfaces in distributed unit (DU) and active antenna unit (AAU) equipment with strict EMI and thermal requirements.

IC Role / Device Role / Timing Role: High-frequency (up to 1.5 MHz) buck regulator supporting fast transient response and low output ripple.

Use Value: Achieves >90% efficiency at 25 A with minimal external components, reducing heat density and easing thermal design in sealed telecom enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP8772GQ-Z (Monolithic Power)	20 A rated, 2.7–16 V input, no PMBus, only analog interface; lacks remote sensing and thermal compensation.	Targeted at cost-sensitive embedded systems without telemetry needs; not suitable for SAS3x-series compliance or PMBus-based system management.	Select when digital control, telemetry, or differential sensing are unnecessary and lower current rating is acceptable.
TPS546D24RQFT (Texas Instruments)	40 A rated, 3–18 V input, full PMBus 1.3 compliance, integrated telemetry ADC, but larger 6×6 mm QFN package.	Designed for higher-current AI accelerators and networking ASICs; supports more advanced sequencing and black-box fault logging.	Choose when >25 A output, deeper PMBus feature set, or higher integration of telemetry functions is required.

Compared with MP8772GQ-Z and TPS546D24RQFT, the IR38063MBC01TRP uniquely balances 25 A capability, 5×7 mm footprint, full PMBus configurability, and analog fallback - making it optimal for Broadcom SAS platform integration where space, telemetry, and proven compatibility are jointly critical.

Availability

IR38063MBC01TRP is available at Aetrix Electronics and suitable for enterprise storage controllers, telecom baseband units, and distributed server point-of-load applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for IR38063MBC01TRP 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 high-efficiency power conversion and silicon carbide solutions.

The SupIRBuck™ product line delivers fully integrated, digitally configurable DC/DC regulators targeting high-current, low-voltage point-of-load applications in datacenter, networking, and storage infrastructure where space, thermal performance, and system-level telemetry are critical.

FAQ

Does IR38063MBC01TRP require external MOSFETs?

No. IR38063MBC01TRP integrates both high-side and low-side power MOSFETs, along with the bootstrap diode and PWM controller, in a single 5 mm × 7 mm PQFN package. This eliminates the need for external power switches, gate drivers, or discrete bootstrap components - reducing total solution size and design complexity for 25 A POL applications.

Can IR38063MBC01TRP operate without PMBus communication?

Yes. IR38063MBC01TRP defaults to analog mode at power-up and functions as a standard synchronous buck regulator using RT/Sync resistor programming and analog feedback. All telemetry (current, voltage, temperature) is accessible as analog voltages on SDA/IMON, SALERT#/TMON, and Vsns pins - no PMBus interface required for basic operation.

What is the purpose of the Track_EN# pin?

The Track_EN# pin enables or disables output voltage tracking functionality. When pulled low, it activates tracking mode for coordinated power-up/down sequencing with other regulators. For non-tracking use, it must be biased - either to P1V8 via 100 kΩ (preferred) or to LGND via 750 kΩ - to ensure predictable startup behavior and avoid floating-input instability.

How does IR38063MBC01TRP handle overcurrent protection?

IR38063MBC01TRP implements thermally compensated overcurrent limiting with configurable responses (latch-off, hiccup, or current foldback) via PMBus command or analog resistor on SCL/OCSet. The current sense is derived from MOSFET R_DS(on) and adjusted in real time based on junction temperature, ensuring consistent SOA protection across –40°C to +125°C without external current-sense resistors.

IR38063MBC01TRP 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

IR38063MBC01TRP FAQ

1.How can I place an order for IR38063MBC01TRP through Aetrix?

Please submit a Request for Quotation (RFQ) for IR38063MBC01TRP 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 IR38063MBC01TRP reliable?

The price and inventory of IR38063MBC01TRP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR38063MBC01TRP is usually 5 days.

3.What payment methods are accepted for IR38063MBC01TRP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR38063MBC01TRP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR38063MBC01TRP?

IR38063MBC01TRP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR38063MBC01TRP 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 IR38063MBC01TRP?

For technical support, including IR38063MBC01TRP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR38063MBC01TRP requirements.

6.How does Aetrix verify that IR38063MBC01TRP is sourced from the original manufacturer or authorized distributors?

All IR38063MBC01TRP 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 IR38063MBC01TRP meets industry standards.

7.What is the process for return or replacement of IR38063MBC01TRP?

All IR38063MBC01TRP units undergo pre-shipment inspection (PSI). If there is an issue with IR38063MBC01TRP, 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 IR38063MBC01TRP part is unused and in its original packaging.

Return procedure for IR38063MBC01TRP:

1.Submit a request within 90 days.

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

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