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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies IRLR2705TRL

Name: IRLR2705TRL
Brand: Infineon Technologies
SKU: IRLR2705TRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRLR2705TRL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: IRLR2705TRL.pdf

Description:: MOSFET N-CH 55V 28A DPAK

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Product details

Overview

IRLR2705TRL from Infineon Technologies (formerly International Rectifier) is a logic-level N-channel Power MOSFET in TO-252AA (D-Pak) package, rated for 55 V V_DS, 28 A continuous drain current at T_C = 25°C, and 0.040 Ω R_DS(on) at V_GS = 10 V. It features ultra-low on-resistance, fast switching, full avalanche rating, and surface-mount compatibility - widely used in DC-DC converters, motor drivers, and load-switching circuits.

For engineers reviewing the IRLR2705TRL datasheet, IRLR2705TRL pinout, IRLR2705TRL application, or IRLR2705TRL equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1.0–2.0 V), thermal resistance (R_θJC = 2.2 °C/W), avalanche energy rating (E_AS = 110 mJ), and D-Pak mounting suitability for high-current PCB layouts.

Technical Context

This fifth-generation HEXFET device uses advanced silicon processing to minimize R_DS(on) per die area while maintaining ruggedness under repetitive avalanche stress. Its gate threshold voltage (1.0–2.0 V) enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting circuitry.

Switching performance is characterized by 8.9 ns turn-on delay, 100 ns rise time, and 21 ns turn-off delay under standard test conditions (V_DD = 28 V, I_D = 16 A, R_G = 6.5 Ω). The integrated body diode exhibits t_rr = 76–110 ns and Q_rr = 190–290 nC, supporting synchronous rectification in buck topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - maximum blocking voltage before avalanche onset; suitable for 48 V bus and automotive 36 V nominal systems
R_DS(on) @ V_GS = 10 V	0.040 Ω - conduction loss of ≤15.7 W at 28 A, enabling high-efficiency power stages
I_D @ T_C = 25°C	28 A - continuous current capability with heatsink; derates to 20 A at 100°C case temperature
E_AS	110 mJ - single-pulse avalanche energy; supports unclamped inductive switching in relay/motor control
Q_g	25 nC - total gate charge; determines driver strength requirement for <100 ns switching transitions
t_r/t_f	100/29 ns - fast edge rates reduce switching losses but require careful layout to suppress EMI
R_θJC	2.2 °C/W - junction-to-case thermal resistance; enables >30 W power dissipation with modest heatsinking

Pinout & Package

IRLR2705TRL is housed in a TO-252AA (D-Pak) surface-mount package with exposed drain pad for thermal and electrical connection. Pin assignments are standardized per JEDEC outline: Gate (Pin 1), Drain (Pins 2 & 4), Source (Pin 3).

Pin/Terminal	Circuit Role	Design Meaning
1 - Gate	Control terminal	Logic-level input (V_GS(th) = 1.0–2.0 V); requires low-impedance drive to minimize switching losses
2 & 4 - Drain	High-side power path	Internally connected to exposed copper pad; must be routed to high-current net and thermally coupled to PCB copper
3 - Source	Reference node	Common return for gate drive and load current; critical for stable gate voltage referencing in high-dI/dt operation

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS ≥ 4.0 V, eliminating need for gate driver ICs in 3.3 V/5 V MCU-based designs
Fully avalanche-rated	Guaranteed single-pulse E_AS = 110 mJ and repetitive E_AR = 6.8 mJ - supports robust operation in inductive load switching
Ultra-low R_DS(on)	0.040 Ω @ 10 V ensures <1 W conduction loss at 5 A, reducing thermal design burden in compact power modules
Fast switching	25 nC Q_g and 100 ns t_r enable efficient operation up to 500 kHz in SMPS applications
TO-252AA surface mount	JEDEC-compliant D-Pak footprint allows automated assembly and high thermal conductivity via PCB copper pour under drain pad

Applications

DC-DC Buck Converter

Brushed DC Motor Driver

Use Scenario: High-efficiency 12 V to 3.3 V point-of-load conversion in industrial controllers.

IC Role / Device Role: Synchronous high-side switch in buck topology, paired with external low-side MOSFET or integrated controller.

Use Value: 0.040 Ω R_DS(on) reduces conduction loss by >40% vs. legacy 0.07 Ω devices, improving thermal margin at 10 A output.

Use Scenario: H-bridge drive for 24 V brushed motors in automated gate actuators.

IC Role / Device Role: High-side quadrant switch enabling bidirectional current control with logic-level MCU GPIO.

Use Value: 1.0–2.0 V V_GS(th) allows direct PWM control from STM32 or PIC without gate driver, simplifying BOM and layout.

Automotive Load Switch

LED Constant-Current Driver

Use Scenario: Smart fuse replacement for 12 V accessory circuits (e.g., HVAC blower, seat heaters).

IC Role / Device Role: Protected high-side switch with overcurrent and thermal foldback via external sense resistor.

Use Value: 110 mJ E_AS withstands inrush currents during cold-crank (≤6 V battery dips), preventing false trip or failure.

Use Scenario: Dimmable LED string driver in commercial signage using constant-current buck architecture.

IC Role / Device Role: Low-loss series pass element modulated via analog/PWM gate control.

Use Value: 2.2 °C/W R_θJC enables stable 2 A LED current with minimal heatsink, meeting IP65 enclosure thermal limits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRLZ44N	R_DS(on) = 0.028 Ω @ 10 V; higher Q_g = 34 nC; same V_DS = 55 V	Better conduction loss but slower switching; less suitable for >250 kHz operation	Prefer when thermal budget is tighter than switching speed requirements
STP55NF06L	R_DS(on) = 0.018 Ω @ 10 V; V_DS = 60 V; TO-220 package (not surface-mount)	Lower R_DS(on) but through-hole only; no D-Pak thermal pad for PCB heat spreading	Select only if board redesign for through-hole is acceptable and lower conduction loss is critical

Compared with IRLR2705TRL, IRLZ44N offers lower conduction loss but demands stronger gate drive, while STP55NF06L trades surface-mount convenience for superior R_DS(on) - making IRLR2705TRL the optimal balance of logic-level drive, thermal performance, and manufacturability in space-constrained designs.

Availability

IRLR2705TRL is available at Aetrix Electronics and suitable for DC-DC converters, motor drivers, and automotive load-switching applications requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.

Supply support for IRLR2705TRL 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 global semiconductor leader specializing in power management, sensor, and automotive ICs, with deep expertise in silicon-based power devices and system-level solutions.

The IRLR2705TRL belongs to Infineon's legacy HEXFET® Power MOSFET family - engineered for high-current, logic-level switching in industrial power supplies, motor controls, and automotive subsystems where reliability and thermal efficiency are critical.

FAQ

Is IRLR2705TRL suitable for 3.3 V microcontroller gate drive?

Yes. With a gate threshold voltage range of 1.0–2.0 V and guaranteed enhancement at V_GS ≥ 4.0 V, the IRLR2705TRL fully turns on using standard 3.3 V GPIO outputs. However, for lowest R_DS(on) and fastest switching, a 5 V gate drive is recommended to achieve 0.040 Ω and minimize Q_g-related delays.

What is the maximum continuous current at 85°C case temperature?

Per the linear derating curve, the maximum continuous drain current at T_C = 85°C is approximately 23.5 A. This is calculated from the 28 A rating at 25°C and the 0.45 W/°C derating factor, considering power dissipation limits and thermal resistance constraints under real PCB mounting conditions.

Does IRLR2705TRL include an integrated body diode, and what are its recovery characteristics?

Yes, it integrates a p-n junction body diode with V_SD = 1.3 V at I_S = 17 A and T_J = 25°C. Its reverse recovery time is 76–110 ns, and Q_rr is 190–290 nC under di/dt = 100 A/µs - suitable for non-synchronous flyback or freewheeling in low-frequency motor drives, but not recommended for high-frequency synchronous rectification without external optimization.

Can IRLR2705TRL be used in parallel configurations for higher current handling?

Yes, but with strict layout and gate drive matching. The positive R_DS(on) temperature coefficient promotes current sharing, yet mismatched gate loop inductance or trace resistance can cause imbalance. Use identical gate resistors, Kelvin-source routing, and symmetrical PCB copper pours to ensure balanced thermal and current distribution across paralleled devices.

IRLR2705TRL Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 28A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 40mOhm @ 17A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 25 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 880 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 68W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252AA (DPAK)

IRLR2705TRL FAQ

1.How can I place an order for IRLR2705TRL through Aetrix?

Please submit a Request for Quotation (RFQ) for IRLR2705TRL 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 IRLR2705TRL reliable?

The price and inventory of IRLR2705TRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLR2705TRL is usually 5 days.

3.What payment methods are accepted for IRLR2705TRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLR2705TRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRLR2705TRL?

IRLR2705TRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRLR2705TRL 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 IRLR2705TRL?

For technical support, including IRLR2705TRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLR2705TRL requirements.

6.How does Aetrix verify that IRLR2705TRL is sourced from the original manufacturer or authorized distributors?

All IRLR2705TRL 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 IRLR2705TRL meets industry standards.

7.What is the process for return or replacement of IRLR2705TRL?

All IRLR2705TRL units undergo pre-shipment inspection (PSI). If there is an issue with IRLR2705TRL, 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 IRLR2705TRL part is unused and in its original packaging.

Return procedure for IRLR2705TRL:

1.Submit a request within 90 days.

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

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