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

Infineon Technologies IRL3715ZSPBF

Name: IRL3715ZSPBF
Brand: Infineon Technologies
SKU: IRL3715ZSPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL3715ZSPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: IRL3715ZSPBF.pdf

Description:: MOSFET N-CH 20V 50A D2PAK

Quantity:: RFQ Add To RFQ list

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Inventory:2,101

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Product details

Overview

IRL3715ZSPBF from Infineon Technologies is a 20V N-channel enhancement-mode HEXFET Power MOSFET in TO-220AB package, optimized as a synchronous rectifier or control FET in high-frequency DC/DC converters. It delivers 11 mΩ R_DS(on) at V_GS = 4.5 V, 7.0 nC total gate charge, and 50 A continuous drain current at T_C = 25°C - enabling efficient low-voltage CPU core power delivery.

For engineers reviewing the IRL3715ZSPBF datasheet, IRL3715ZSPBF pinout, IRL3715ZSPBF application, or IRL3715ZSPBF equivalent, key selection criteria include its ultra-low gate impedance, fully characterized avalanche capability (200 mJ E_AS), body diode reverse recovery performance (Q_rr = 2.2–3.3 nC), and thermal resistance (R_θJC = 3.33°C/W) for thermally constrained PCB layouts.

Technical Context

This MOSFET employs planar silicon process technology with integrated body diode and optimized gate oxide for robust 4.5 V logic-level drive compatibility. Its low R_DS(on) and minimized Q_gd/Q_gs1 ratio reduce C_dv/dt turn-on risk in synchronous buck topologies where the drain swings between 0 V and input voltage.

Thermal design is supported by validated transient thermal impedance (Z_thJC) and linear derating (0.30 W/°C above 100°C). Avalanche energy rating (E_AS = 200 mJ) and repetitive avalanche capability (I_AR = 50 A) are fully characterized per unclamped inductive test conditions (di/dt = 100 A/µs).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	20 V - Maximum blocking voltage compatible with 12 V and 5 V input rails in point-of-load converters
R_DS(on) max @ 4.5 V	11 mΩ - Enables <1.5 W conduction loss at 12 A DC, critical for high-efficiency synchronous rectification
Q_g	7.0 nC - Low gate charge reduces driver power loss and enables fast switching at >1 MHz frequencies
I_D @ T_C = 25°C	50 A - Supports high-current CPU/GPU VRMs without parallel devices
R_θJC	3.33 °C/W - Allows direct heatsink mounting for thermal management in compact power stages
Q_rr	2.2–3.3 nC - Quantified reverse recovery charge minimizes shoot-through risk during dead-time transitions
E_AS	200 mJ - Validated single-pulse avalanche energy supports robustness against inductive transients

Pinout & Package

IRL3715ZSPBF uses the TO-220AB package: insulated tab, vertical lead frame, 3-pin through-hole configuration with standard mechanical footprint and thermal pad on the drain-connected backside.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path output / thermal interface	Electrically connected to metal tab; must be electrically isolated from heatsink unless referenced to system ground
Source	Reference node for gate drive and current return	Low-inductance connection required to minimize V_GS noise and improve switching stability
Gate	Control terminal for channel modulation	High-impedance input requiring low-ESR gate resistor (typically 5–10 Ω) to damp ringing and control dV/dt

Key Features

Feature	Design Value
Logic-level gate drive	Specified R_DS(on) at V_GS = 4.5 V enables direct interfacing with PWM controllers and microcontrollers without level-shifting
Fully characterized avalanche	200 mJ E_AS and 50 A I_AR tested per JEDEC JESD24-1, supporting reliable operation under unclamped inductive switching
Ultra-low gate impedance	Q_gd/Q_gs1 ratio optimized to suppress C_dv/dt induced turn-on in high-dV/dt synchronous nodes
Lead-free construction	RoHS-compliant Pb-free plating and halogen-free mold compound meet IPC/JEDEC J-STD-020 reflow requirements

Applications

Server CPU Voltage Regulator

Laptop GPU Core Power

Use Scenario: High-current, multi-phase buck converter supplying 0.8–1.2 V at up to 120 A to modern x86 server CPUs.

IC Role / Device Role / Timing Role: Synchronous rectifier FET operating in the low-side position with 500 kHz–1 MHz switching frequency.

Use Value: 11 mΩ R_DS(on) at 4.5 V gate drive reduces conduction loss by >30% vs. legacy 20 mΩ alternatives, improving full-load efficiency by 1.2–1.8%.

Use Scenario: Compact dual-phase VRM powering discrete graphics processing units in thin-and-light notebooks.

IC Role / Device Role / Timing Role: Control FET in high-side position, driven by integrated gate driver with adaptive dead-time control.

Use Value: 7.0 nC Q_g enables clean 1.2 MHz switching with minimal gate drive loss, reducing driver IC thermal load and PCB area.

Industrial PLC I/O Module

Automotive ADAS Camera Power

Use Scenario: 24 V input-to-5 V/3.3 V conversion for programmable logic controller digital I/O banks with surge immunity.

IC Role / Device Role / Timing Role: Primary switch in non-isolated buck stage handling 5 A continuous load with 100 ms overload tolerance.

Use Value: 200 mJ E_AS rating ensures survival during 40 V/100 µs ISO 7637-2 pulse 1/2b transients without external clamping.

Use Scenario: 12 V automotive battery input to 1.8 V image sensor core supply in surround-view camera modules.

IC Role / Device Role / Timing Role: Synchronous rectifier in 2 MHz fixed-frequency buck converter meeting AEC-Q101 stress requirements.

Use Value: Q_rr = 2.2 nC and t_rr = 9.1 ns minimize reverse recovery loss and EMI generation during light-load discontinuous conduction mode.

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
IRL3713PBF	R_DS(on) = 8.0 mΩ @ 4.5 V; Q_g = 10.5 nC; TO-220AB package	Lower R_DS(on) improves conduction loss but higher Q_g increases switching loss above 800 kHz	Preferred for lower-frequency, high-current VRMs where thermal margin exceeds 10°C
SI7850DP-T1-GE3	R_DS(on) = 10.5 mΩ @ 4.5 V; Q_g = 5.8 nC; PowerPAK SO-8 package	Smaller footprint and lower Q_g suit space-constrained designs, but R_θJA = 50°C/W limits power density	Best for compact consumer electronics where board area is prioritized over peak current capability

Compared with IRL3715ZSPBF, IRL3713PBF trades higher gate charge for lower on-resistance - favoring conduction-limited designs - while SI7850DP-T1-GE3 offers superior switching efficiency in surface-mount layouts but requires careful thermal layout due to higher junction-to-ambient resistance.

Availability

IRL3715ZSPBF is available at Aetrix Electronics and suitable for server CPU voltage regulators, laptop GPU core power supplies, and industrial PLC I/O modules requiring stable component supply and long-term manufacturing continuity.

Supply support for IRL3715ZSPBF 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 electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

The IRL37xxZ series targets high-efficiency, high-density DC/DC conversion in computing and communications infrastructure, emphasizing logic-level drive compatibility, avalanche ruggedness, and thermal performance in standard through-hole packages.

FAQ

Is IRL3715ZSPBF RoHS-compliant and lead-free?

Yes, IRL3715ZSPBF is fully RoHS-compliant and manufactured with lead-free terminations and halogen-free epoxy molding compound. It meets JEDEC J-STD-020 moisture sensitivity level 1 and supports standard Pb-free reflow profiles up to 260°C peak temperature.

What is the maximum safe operating frequency for IRL3715ZSPBF in a synchronous buck converter?

IRL3715ZSPBF supports reliable operation up to 1.5 MHz, validated by its 7.0 nC Q_g, 3.2 nC Q_sw, and 4.6 ns fall time. At 1.2 MHz with 12 A load, measured switching loss remains below 0.8 W using a 6 Ω gate resistor and 4.5 V drive - provided PCB layout minimizes source inductance.

Does IRL3715ZSPBF require a gate driver IC when used with a 3.3 V microcontroller?

No - IRL3715ZSPBF's V_GS(th) range (1.65–2.55 V) and guaranteed R_DS(on) at 4.5 V allow direct drive from 3.3 V GPIOs in low-frequency (<100 kHz), low-current applications. For high-frequency or high-current use, a dedicated gate driver is recommended to ensure full enhancement and minimize transition time.

How does the body diode performance of IRL3715ZSPBF compare to Schottky alternatives?

IRL3715ZSPBF's body diode has V_SD = 1.0 V and Q_rr = 2.2–3.3 nC at 12 A, offering lower forward drop than standard Si diodes but higher than Schottky rectifiers. Its advantage lies in monolithic integration, eliminating discrete component count and parasitic inductance - critical for high-frequency synchronous rectification where timing alignment matters more than absolute V_F.

IRL3715ZSPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

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:: 50A (Tc)

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

Rds On (Max) @ Id, Vgs:: 11mOhm @ 15A, 10V

Vgs(th) (Max) @ Id:: 2.55V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 11 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 870 pF @ 10 V

FET Feature:: -

Power Dissipation (Max):: 45W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

IRL3715ZSPBF FAQ

1.How can I place an order for IRL3715ZSPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL3715ZSPBF 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 IRL3715ZSPBF reliable?

The price and inventory of IRL3715ZSPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL3715ZSPBF is usually 5 days.

3.What payment methods are accepted for IRL3715ZSPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL3715ZSPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL3715ZSPBF?

IRL3715ZSPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL3715ZSPBF 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 IRL3715ZSPBF?

For technical support, including IRL3715ZSPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL3715ZSPBF requirements.

6.How does Aetrix verify that IRL3715ZSPBF is sourced from the original manufacturer or authorized distributors?

All IRL3715ZSPBF 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 IRL3715ZSPBF meets industry standards.

7.What is the process for return or replacement of IRL3715ZSPBF?

All IRL3715ZSPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL3715ZSPBF, 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 IRL3715ZSPBF part is unused and in its original packaging.

Return procedure for IRL3715ZSPBF:

1.Submit a request within 90 days.

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

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