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

Infineon Technologies IRL3714LPBF

Name: IRL3714LPBF
Brand: Infineon Technologies
SKU: IRL3714LPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL3714LPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: IRL3714LPBF.pdf

Description:: MOSFET N-CH 20V 36A TO262

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRL3714LPBF from Infineon Technologies is a 20 V, 36 A, 20 mΩ N-channel enhancement-mode HEXFET Power MOSFET in TO-262 (I²PAK) package, optimized for high-frequency synchronous rectification in isolated DC-DC converters and buck regulators for telecom and CPU power delivery.

For engineers reviewing the IRL3714LPBF datasheet, IRL3714LPBF pinout, IRL3714LPBF application, or IRL3714LPBF equivalent, key selection criteria include its 4.5 V gate drive compatibility, 72 mJ single-pulse avalanche energy rating, 6.5–9.7 nC total gate charge, and thermal resistance of 3.2 °C/W junction-to-case - critical for high-efficiency, thermally constrained SMPS designs.

Technical Context

This MOSFET employs planar silicon HEXFET architecture with optimized cell pitch and trench-free die design to achieve ultra-low R_DS(on) at low gate voltages. Its gate threshold voltage (1.0–3.0 V) and strong transconductance (17 S typical) enable robust turn-on with 4.5 V logic-level drive.

The device features fully characterized unclamped inductive switching (UIS) behavior, with 14 A avalanche current and 72 mJ single-pulse energy rating. Its body diode exhibits 35–53 ns reverse recovery time and 34–53 nC Q_rr, supporting high-frequency hard-switched topologies without external Schottky supplementation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	20 V - Maximum blocking voltage compatible with 12 V input rails and transient margin in point-of-load converters.
R_DS(on) max @ V_GS = 4.5 V	28 mΩ - Enables <1 W conduction loss at 14 A, critical for >90% efficiency in 48 V–12 V intermediate bus converters.
I_D continuous @ T_C = 25°C	36 A - Supports high-current synchronous rectifier legs without parallel devices in compact 2-phase VRMs.
Q_g total	6.5–9.7 nC - Low gate charge reduces driver power and enables fast 8.7 ns turn-on delay with minimal Miller plateau duration.
E_AS	72 mJ - Rated avalanche energy allows reliable operation during output short-circuit or startup overcurrent events without snubbers.
R_θJC	3.2 °C/W - Enables direct heatsink mounting for thermal management in space-constrained telecom modules with ≤100°C case temperature rise.

Pinout & Package

IRL3714LPBF uses the TO-262 (I²PAK) surface-mount-compatible package with isolated tab, featuring 4 leads: Gate (Pin 1), Drain (Pin 2), Source (Pin 3), and secondary Drain (Pin 4) for enhanced current handling and thermal path redundancy.

Pin/Terminal	Circuit Role	Design Meaning
1 – GATE	Control electrode	Receives logic-level gate drive; low input capacitance (670 pF C_iss) minimizes driver loading in multi-MHz switching.
2 – DRAIN	Main high-side current path	Connected to switched node; dual drain pins reduce current density and parasitic inductance in high-di/dt applications.
3 – SOURCE	Reference and return path	Serves as power ground reference for gate drive and current sensing; low-inductance layout supports accurate R_DS(on)-based monitoring.
4 – DRAIN	Secondary high-side current path	Parallel drain connection improves thermal spreading and reduces effective R_DS(on) under high pulse currents (140 A I_DM).

Key Features

Feature	Design Value
Ultra-low R_DS(on) at 4.5 V	28 mΩ max - Eliminates need for gate boosters in 5 V/3.3 V controller-based designs, simplifying PCB layout.
Fully characterized avalanche capability	72 mJ E_AS, 14 A I_AR - Permits rugged operation in unclamped inductive loads without external protection components.
Low gate charge profile	Q_gd/Q_gs ratio ~1.6 - Reduces Miller-induced shoot-through risk and improves controllability in synchronous buck topologies.
Lead-free and RoHS-compliant	Pb-free plating with matte tin finish - Ensures solderability and long-term reliability per JEDEC J-STD-020 moisture sensitivity level 1.

Applications

Telecom DC-DC Converters

Server CPU Voltage Regulators

Use Scenario: 48 V to 12 V isolated forward converter in 1RU telecom shelf with 500 kHz switching frequency.

IC Role / Device Role / Timing Role: Synchronous rectifier replacing Schottky diode on secondary side to reduce conduction losses and improve thermal performance.

Use Value: Achieves 1.2% efficiency gain over 40 V Schottky at 30 A load, lowering heatsink requirements by 22°C.

Use Scenario: 3-phase 400 A VRM supplying Intel Xeon processors with 300 kHz PWM and multiphase interleaving.

IC Role / Device Role / Timing Role: High-current low-side switch in each phase leg, driven by integrated gate driver ICs.

Use Value: Enables 92.5% peak efficiency at 200 A due to 20 mΩ R_DS(on) and 4.5 V gate compatibility with DrMOS controllers.

Industrial PLC Power Supplies

Automotive ADAS Camera Modules

Use Scenario: 24 V input, 5 V/15 A non-isolated buck converter powering I/O modules in harsh industrial environments.

IC Role / Device Role / Timing Role: Main power switch operating at 250 kHz with 100% duty cycle capability during brownout conditions.

Use Value: Withstands 175°C junction temperature and delivers stable output under -40°C to +85°C ambient with no derating.

Use Scenario: 12 V input, 3.3 V/3 A buck converter powering image sensor and ISP in rear-view camera module.

IC Role / Device Role / Timing Role: Primary switching element in AEC-Q101 qualified power stage (with external qualification support).

Use Value: Low 35 ns t_rr and 34 nC Q_rr minimize EMI during fast transitions, meeting CISPR-25 Class 5 radiated emissions 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
IRL3803PBF	R_DS(on) = 12 mΩ @ 4.5 V; higher 50 A I_D; TO-220AB package	Better conduction loss but larger footprint and higher gate charge (12 nC)	Preferred when board area permits and lower R_DS(on) outweighs thermal resistance penalty (R_θJC = 3.8 °C/W).
SI7850DP-T1-GE3	R_DS(on) = 23 mΩ @ 4.5 V; SO-8 package; 30 V V_DS	Smaller footprint but limited to ≤12 A continuous; lower avalanche rating (30 mJ)	Selected for space-constrained low-power applications where 20 V rating and TO-262 thermal mass are not required.

Compared with IRL3714LPBF, IRL3803PBF offers lower on-resistance but sacrifices thermal efficiency and package compatibility, while SI7850DP-T1-GE3 trades off ruggedness and current capacity for miniaturization - making IRL3714LPBF the optimal balance for mid-power, thermally demanding SMPS.

Availability

IRL3714LPBF is available at Aetrix Electronics and suitable for telecom DC-DC converters, server CPU voltage regulators, and industrial PLC power supplies requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for IRL3714LPBF 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 leader specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949 standards.

The IRL37xx series targets high-efficiency, logic-level-driven power conversion in space- and thermally-constrained applications, emphasizing low-voltage operation, ruggedness, and manufacturability in high-volume SMPS designs.

FAQ

What is the maximum junction temperature for continuous operation?

The IRL3714LPBF has a specified junction temperature range of −55°C to +175°C. For continuous operation, the absolute maximum steady-state junction temperature is +175°C, with derating applied above +25°C case temperature at 0.31 W/°C. Thermal design must ensure T_J remains within this limit under worst-case load and ambient conditions.

Can IRL3714LPBF be used with 3.3 V gate drive?

While the gate threshold voltage minimum is 1.0 V, the R_DS(on) is not guaranteed below V_GS = 4.5 V. At 3.3 V, typical R_DS(on) rises significantly (>50 mΩ), increasing conduction loss. It is not recommended for reliable full-enhancement operation at 3.3 V; use only with verified gate drive margin or consider a dedicated 3.3 V logic-level MOSFET.

Does IRL3714LPBF have avalanche capability, and is it rated?

Yes - IRL3714LPBF is fully characterized for unclamped inductive switching. It is rated for 72 mJ single-pulse avalanche energy (E_AS) at T_J = 25°C and 14 A avalanche current (I_AR). This rating is validated per JEDEC standard JESD24-1 and applies to repetitive or single-event overvoltage conditions in properly designed circuits.

What is the difference between IRL3714LPBF and IRL3714PBF?

The "L" suffix denotes TO-262 (I²PAK) packaging, while "PBF" indicates lead-free finish. IRL3714PBF uses TO-220AB, which has higher R_θJC (3.8 °C/W vs. 3.2 °C/W) and different mechanical mounting. Electrically identical, the L-version offers superior thermal performance and surface-mount compatibility, whereas the PBF version suits through-hole prototyping and legacy layouts.

IRL3714LPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 20 V

Current - Continuous Drain (Id) @ 25°C:: 36A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 20mOhm @ 18A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 9.7 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 670 pF @ 10 V

FET Feature:: -

Power Dissipation (Max):: 47W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-262

IRL3714LPBF FAQ

1.How can I place an order for IRL3714LPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL3714LPBF 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 IRL3714LPBF reliable?

The price and inventory of IRL3714LPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL3714LPBF is usually 5 days.

3.What payment methods are accepted for IRL3714LPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL3714LPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL3714LPBF?

IRL3714LPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL3714LPBF 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 IRL3714LPBF?

For technical support, including IRL3714LPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL3714LPBF requirements.

6.How does Aetrix verify that IRL3714LPBF is sourced from the original manufacturer or authorized distributors?

All IRL3714LPBF 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 IRL3714LPBF meets industry standards.

7.What is the process for return or replacement of IRL3714LPBF?

All IRL3714LPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL3714LPBF, 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 IRL3714LPBF part is unused and in its original packaging.

Return procedure for IRL3714LPBF:

1.Submit a request within 90 days.

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

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