Choose your country or region.

EnglishFrançaispolskiSlovenija한국의DeutschSvenskaSlovenskáMagyarországItaliaहिंदीрусскийTiếng ViệtSuomiespañolKongeriketPortuguêsภาษาไทยБългарски езикromânescČeštinaGaeilgeעִבְרִיתالعربيةPilipinoDanskMelayuIndonesiaHrvatskaفارسیNederlandTürk diliΕλλάδαRepublika e ShqipërisëአማርኛAzərbaycanEesti VabariikEuskeraБеларусьíslenskaBosnaAfrikaansIsiXhosaisiZuluCambodiaსაქართველოҚазақшаAyitiHausaКыргыз тилиGalegoCatalàCorsaKurdîLatviešuພາສາລາວlietuviųLëtzebuergeschmalaɡasʲМакедонскиMaoriМонголулсবাংলা ভাষারမြန်မာनेपालीپښتوChicheŵaCрпскиSesothoසිංහලKiswahiliТоҷикӣاردوУкраїнаO'zbekગુજરાતીಕನ್ನಡkannaḍaதமிழ் மொழி繁体中文
Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators > IR3899MTRPBF
Infineon Technologies
1x-PowerVQFN.jpg ImageView larger image
Image may be representation.
See specs for product details.

IR3899MTRPBF

In Stock 33100 pcs Reference Price(In US Dollars)
1+
$2.8815
Manufacturer Part Number:
IR3899MTRPBF
Manufacturer / Brand
Infineon Technologies
Part of Description:
IC REG BUCK ADJUSTABLE 9A 16PQFN
Datasheets:
IR3899MTRPBF(1).pdfIR3899MTRPBF(2).pdfIR3899MTRPBF(3).pdfIR3899MTRPBF(4).pdfIR3899MTRPBF(5).pdfIR3899MTRPBF(6).pdfIR3899MTRPBF(7).pdfIR3899MTRPBF(8).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 33100 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

Inquiry Online

Please complete all required fields with your contact information.Click "SUBMIT REQUEST" we will contact you shortly by email. Or Email us: Info@IC-Components.com
Part Number
Manufacturer
Require Quantity
Target Price(USD)
Company Name
Contact Name
E-mail
Phone
Message
Please enter Verify Code and click "Submit"
Part Number IR3899MTRPBF
Manufacturer / Brand Infineon Technologies
Stock Quantity 33100 pcs Stock
Category Integrated Circuits (ICs) > Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
Description IC REG BUCK ADJUSTABLE 9A 16PQFN
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ IR3899MTRPBF Datasheets IR3899MTRPBF Details PDF
IR3899MTRPBF Details PDF for FR.pdf
IR3899MTRPBF Details PDF for IT.pdf
IR3899MTRPBF Details PDF for ES.pdf
IR3899MTRPBF Details PDF for DE.pdf
IR3899MTRPBF Details PDF for KR.pdf
Voltage - Output (Min/Fixed) 0.5V
Voltage - Output (Max) 18.06V
Voltage - Input (Min) 1V
Voltage - Input (Max) 21V
Topology Buck
Synchronous Rectifier Yes
Supplier Device Package 16-PQFN (4x5)
Series SupIRBuck®
Package / Case 16-PowerVQFN
Package Tape & Reel (TR)
Output Type Adjustable
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TJ)
Number of Outputs 1
Mounting Type Surface Mount
Function Step-Down
Frequency - Switching 300kHz ~ 1.5MHz
Current - Output 9A
Base Product Number IR3899

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: PayPal@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


IR3899MTRPBF Product Details:

The IR3899MTRPBF is a high-performance buck switching regulator integrated circuit (IC) designed by International Rectifier (Infineon Technologies). As a member of the SupIRBuck series, this PMIC (Power Management Integrated Circuit) device is classified as a DC-DC Switching Regulator, specifically a Positive Adjustable Voltage Regulator.

The key features of this product include:

Functionality: The IR3899MTRPBF is a buck converter that can provide a regulated positive output voltage from an input voltage ranging from 1V to 21V. It is capable of delivering up to 9 Amps of output current, making it suitable for a wide range of power-hungry applications.

Design Challenges Addressed: This IC addresses the need for efficient, compact, and thermally-robust power conversion solutions in space-constrained and high-power density designs. Its adjustable output voltage range of 0.5V to 18.06V allows for flexibility in meeting diverse system requirements.

Specifications: The device operates over a wide temperature range of -40°C to 125°C (junction temperature), ensuring reliable performance in demanding environments. It features a switching frequency range of 300kHz to 1.5MHz, enabling designers to optimize the solution for their specific application needs.

Advantages: The IR3899MTRPBF's key advantages include high efficiency, small footprint, and the incorporation of a synchronous rectifier for improved power conversion efficiency. The use of a QFN (Quad Flat No-lead) package further contributes to its compact size and thermal performance.

Compatibility and Applications: This IC is RoHS-compliant and suitable for use in a variety of applications, such as industrial equipment, network infrastructure, telecommunications, and consumer electronics, where efficient and adjustable power conversion is required.

Equivalent Models: While there may be alternative PMIC solutions available from other manufacturers, the IR3899MTRPBF is a unique product within Infineon's SupIRBuck series. It offers a combination of features and performance specifications that may not be directly matched by other vendors' offerings, making it a well-suited choice for designers seeking a high-quality, feature-rich buck regulator IC.

IR3899MTRPBF Image
IR3899MTRPBF (1)

IR3899MTRPBF Key Technical Attributes

Manufacturer Part Number: IR3899MTRPBF

Manufacturer: International Rectifier (Infineon Technologies)

Main Category: Integrated Circuits (ICs)

IR3899MTRPBF Packing Size

Packaging Material: 16-PQFN (4x5)

Thermal Characteristics: Operating Temperature -40°C ~ 125°C (TJ)

Electrical Properties: Output Voltage Max 18.06V, Input Voltage Max 21V

IR3899MTRPBF Application

Designed primarily for the PMIC - Voltage Regulators - DC DC Switching Regulators market

IR3899MTRPBF Features

The IR3899MTRPBF is a Buck Switching Regulator IC that can adjust outputs positively, ranging from a minimum of 0.5V to a maximum output of 18.06V. It supports an output current of 9A and works within an input voltage spectrum of 1V to 21V. It offers versatility through adjustable voltage outputs, coupled with a high efficiency due to its synchronous rectifier. The frequency of switching ranges between 300kHz and 1.5MHz, suitable for various applications requiring different energy demands and efficiencies.

IR3899MTRPBF Quality and Safety Features

This product is RoHS compliant, ensuring that it meets the latest environmental standards for electronic equipment. It also has a Moisture Sensitivity Level (MSL) of 2, indicating it can withstand exposure to moisture for up to a year under normal environmental conditions.

IR3899MTRPBF Compatibility

The unit's surface mount design (16-PowerVQFN) and dimensional compatibility (16-PQFN size 4x5) are appropriate for compact circuit applications, making it compatible with numerous modern electronic assemblies and devices.

IR3899MTRPBF Datasheet PDF

For the most accurate and detailed information, customers are encouraged to download the datasheet PDF from our website, which provides comprehensive data on the IR3899MTRPBF.

Quality Distributor

IC-Components is a premium distributor for Infineon Technologies products, specializing in delivering only the highest quality components like the IR3899MTRPBF. For detailed specifications and the best customer support, obtain a quote directly from our website and ensure you are purchasing quality electronic components for your needs.

Frequently Asked Questions

What are the key design considerations when integrating the IR3899MTRPBF into a high-current, space-constrained PCB layout?
When designing with the IR3899MTRPBF, prioritize a low-inductance power loop by placing input/output capacitors as close as possible to the VIN, SW, and VOUT pins. Use a solid ground plane beneath the 16-PowerVQFN package and ensure adequate thermal vias under the exposed pad to dissipate heat efficiently. Due to its 9A output capability and 300kHz–1.5MHz switching frequency range, careful attention must be paid to minimize parasitic inductance and EMI—especially if operating near sensitive analog circuits. The IR3899MTRPBF’s synchronous buck topology reduces conduction losses but demands strict adherence to recommended layout guidelines in the datasheet to avoid instability or excessive ringing.
Can the IR3899MTRPBF operate reliably in industrial environments with ambient temperatures exceeding 85°C?
Yes, the IR3899MTRPBF is rated for a junction temperature (TJ) of up to 125°C and supports an operating ambient range well beyond 85°C when properly heatsinked. However, derating of output current may be necessary at elevated temperatures due to increased RDS(on) of the internal FETs. Ensure sufficient airflow or thermal interface to the PCB, and validate thermal performance under worst-case load and input voltage conditions. For long-term reliability in harsh industrial settings, confirm that solder joints and surrounding components meet MSL 2 handling requirements to prevent moisture-related failures during reflow.
Is the IR3899MTRPBF suitable for replacing a non-synchronous buck regulator in a legacy 5V-to-1.2V, 6A application?
The IR3899MTRPBF is an excellent drop-in upgrade for non-synchronous buck regulators in such applications, offering higher efficiency due to its integrated synchronous rectifier. Its adjustable output (0.5V minimum) supports 1.2V rails, and its 9A current rating provides headroom over the 6A requirement. However, verify that the existing input capacitor network can handle the higher peak currents and that the feedback resistor network is recalculated for the new reference voltage (typically 0.5V). Also, ensure the control loop compensation is compatible—the IR3899MTRPBF uses voltage-mode control with external compensation, which may require redesign compared to fixed-frequency PWM controllers.
What input voltage transients or noise levels can the IR3899MTRPBF tolerate without requiring additional protection circuitry?
The IR3899MTRPBF accepts input voltages from 1V to 21V, but sustained operation near the 21V maximum should include input transient suppression if the source is unregulated (e.g., automotive or industrial power buses). While the device includes built-in overvoltage and undervoltage lockout (UVLO), voltage spikes exceeding 21V—even briefly—can damage the IC. For noisy environments, add a low-ESR ceramic input capacitor within 5mm of the VIN pin and consider a small LC filter or TVS diode if transients exceed 25V. The IR3899MTRPBF’s robustness improves with proper input filtering, especially when operating at high switching frequencies.
How does the IR3899MTRPBF compare to the Texas Instruments TPS54360 for a 12V-to-3.3V, 8A point-of-load conversion?
The IR3899MTRPBF offers advantages over the TPS54360 in this scenario: it integrates both high- and low-side MOSFETs (eliminating external FET selection), supports higher output current (9A vs. 3.5A), and operates across a wider switching frequency range (300kHz–1.5MHz vs. fixed 500kHz). However, the TPS54360 provides enable/shutdown control and power-good signaling, which the IR3899MTRPBF lacks. If your design requires minimal external components and high efficiency at 8A, the IR3899MTRPBF is superior. But if system-level power sequencing or fault monitoring is critical, consider adding external circuitry or evaluating alternatives with more supervisory features.
Can the IR3899MTRPBF be used in battery-powered systems where input voltage drops below 3V?
Yes, the IR3899MTRPBF supports input voltages as low as 1V, making it suitable for battery-powered applications such as Li-ion (down to ~2.7V under load) or multi-cell alkaline systems. Its ability to regulate down to 0.5V output enables efficient step-down conversion even as battery voltage sags. However, efficiency may decrease at very low input voltages due to higher conduction losses in the internal switches. Optimize the switching frequency (lower frequencies reduce gate drive losses) and ensure the inductor value is chosen to maintain continuous conduction mode (CCM) under light loads. The IR3899MTRPBF’s wide input range makes it ideal for energy harvesting or portable devices requiring extended runtime.
What compensation network design approach is recommended for stabilizing the IR3899MTRPBF in a 5V-to-1.0V, 7A application with a 10μH inductor?
For the IR3899MTRPBF in a 5V-to-1.0V, 7A configuration using a 10μH inductor, use type-II compensation with the COMP pin. Start with the values suggested in the datasheet’s “Typical Application” circuit for similar output voltages, then adjust based on measured loop response. The crossover frequency should be set below 1/10th of the switching frequency (e.g., <150kHz if operating at 1.5MHz). Use a network analyzer or injection transformer to verify phase margin (>45°) and gain margin (>10dB). Avoid overcompensating, as excessive phase lag can cause instability during load transients. The IR3899MTRPBF’s internal error amplifier simplifies compensation compared to current-mode controllers, but empirical validation is still essential for mission-critical loads.
Are there known compatibility issues when migrating from the IR3898MTRPBF to the IR3899MTRPBF in an existing SupIRBuck design?
The IR3899MTRPBF is a functional upgrade to the IR3898MTRPBF, offering higher output current (9A vs. 6A) and improved efficiency, but pin-to-pin compatibility is not guaranteed. While both share the 16-PowerVQFN package and similar control architecture, differences in internal gate drive strength, soft-start timing, and compensation network requirements may affect stability. Re-evaluate the feedback and compensation networks, and verify thermal performance under full load. Additionally, confirm that the existing inductor can handle the higher RMS and peak currents. In most cases, the IR3899MTRPBF can replace the IR3898MTRPBF with minor layout and component adjustments, but bench validation under dynamic load conditions is strongly recommended.
What output voltage accuracy can be expected from the IR3899MTRPBF under varying line, load, and temperature conditions?
The IR3899MTRPBF provides ±1.5% reference voltage accuracy (±2.5% over full temperature range), resulting in tight output regulation when using precision feedback resistors. In practice, total output accuracy depends on resistor tolerance (use 1% or better metal-film types), PCB trace resistance, and thermal gradients. For applications requiring ±1% or better regulation (e.g., FPGA core voltages), include Kelvin sensing on the feedback path and minimize copper resistance between the output capacitor and FB pin. The IR3899MTRPBF’s voltage-mode control inherently offers good line regulation, but load regulation is influenced by inductor DCR and PCB layout—optimize trace widths and use low-DCR inductors for best results.
Is external slope compensation required when operating the IR3899MTRPBF at duty cycles above 50%?
No, the IR3899MTRPBF does not require external slope compensation even at duty cycles above 50% because it uses voltage-mode control with internal ramp generation, which inherently avoids subharmonic oscillation. This simplifies design compared to peak-current-mode controllers that need added ramp signals at high duty cycles. However, ensure the selected inductor value provides sufficient ripple current (typically 20–40% of full load) to maintain stable feedback dynamics. The IR3899MTRPBF remains stable across its full input/output range (up to 21V input and down to 0.5V output), making it suitable for high step-down ratio applications without additional compensation circuitry.

Recent Reviews

Leave Comment
Hello, you have not logged in, please log in
User Login

Forgot password?

No account yet? Register now

Tips
Please speak legally
Your email will be hidden
Please complete all required fields ( denoted with* )
Mark
5.0

You May Also Be Interested In:


IR3899MTRPBF

IR3899MTRPBF

Infineon Technologies

IC REG BUCK ADJUSTABLE 9A 16PQFN

In Stock: 33100

SUBMIT RFQ