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Infineon Technologies IRL3502STRLPBF
- Part No.:
- IRL3502STRLPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
IRL3502STRLPBF.pdf
- Description:
- MOSFET N-CH 20V 110A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,418
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Product details
Overview
IRL3502STRLPBF from Infineon Technologies is a 20 V, 110 A, 3.3 mΩ logic-level N-channel MOSFET in D2PAK (TO-263) package, optimized for high-current DC-DC converters and synchronous rectification where low RDS(on) at 4.5 V gate drive enables efficient operation in 3.3 V/5 V control systems.
For engineers reviewing the IRL3502STRLPBF datasheet, IRL3502STRLPBF pinout, IRL3502STRLPBF application, or IRL3502STRLPBF equivalent, key selection criteria include its 4.5 V threshold compatibility, 110 A continuous drain current at TC = 100 °C, and 3.3 mΩ on-resistance - critical for minimizing conduction loss in high-efficiency power stages.
Technical Context
This MOSFET employs planar stripe silicon technology with optimized channel geometry to achieve ultra-low on-resistance while maintaining robust avalanche capability (EAS = 64 mJ at ID = 29 A). Its logic-level gate drive allows direct interfacing with microcontrollers and PWM controllers without level-shifting circuitry.
The device features a fully rated 150 °C junction temperature, integrated body diode with 100 ns reverse recovery time (trr), and gate charge (Qg) of 71 nC at VGS = 10 V - enabling fast switching with moderate gate driver strength requirements in hard-switched topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 20 V - Maximum blocking voltage suitable for 12 V input bus applications with margin. |
| RDS(on) @ VGS = 4.5 V | 3.3 mΩ - Enables <1 W conduction loss at 50 A, critical for high-current point-of-load converters. |
| ID (continuous) @ TC = 100 °C | 110 A - Supports high-power motor drives and server VRMs without external heatsinking beyond PCB copper. |
| Qg @ VGS = 10 V | 71 nC - Determines gate driver power requirement; compatible with standard 1–2 A peak drivers. |
| trr | 100 ns - Limits reverse recovery loss during synchronous rectification in buck converters. |
| EAS | 64 mJ - Withstands single-pulse inductive energy in motor control and relay driving without failure. |
Pinout & Package
IRL3502STRLPBF is housed in a surface-mount D2PAK (TO-263) package with exposed drain pad for thermal enhancement. The package measures 15.42 × 10.90 × 4.72 mm and is lead-free per RoHS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Source terminal (S) | Low-side reference node; tied to ground or return path in high-side switch configurations. |
| Pin 2 (Gate) | Control input (G) | Logic-level compatible; requires ≤4.5 V to fully enhance; gate capacitance impacts switching speed. |
| Pin 3 (Drain) | Power output (D) | Connected to load or input rail; electrically tied to large copper area for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) at 4.5 V | 3.3 mΩ enables >95% efficiency in 12 V → 1 V/100 A VRMs without gate boosting. |
| 100% avalanche rated | 64 mJ single-pulse EAS supports reliable operation in inductive load switching without snubbers. |
| Fast body diode | 100 ns trr reduces cross-conduction loss and EMI in synchronous rectifier designs. |
| Lead-free and RoHS compliant | Meets IPC/JEDEC J-STD-020 reflow profile; qualified for industrial temperature range (−55 °C to +150 °C). |
Applications
| Server VRM | Industrial Motor Drive |
|---|---|
Use Scenario: High-current, multi-phase buck converter supplying CPU core voltage (0.8–1.2 V) at up to 200 A. IC Role / Device Role / Timing Role: Synchronous rectifier MOSFET in low-side position, switched at 300–1000 kHz. Use Value: 3.3 mΩ RDS(on) limits conduction loss to <1.7 W at 100 A, reducing thermal stress on PCB and enabling compact layout. | Use Scenario: Half-bridge inverter stage for 24 V BLDC motor control in factory automation. IC Role / Device Role / Timing Role: Low-side switch handling 60 A peak phase current with 20 kHz PWM. Use Value: 110 A rating at TC = 100 °C ensures margin under sustained load; 100 ns trr minimizes shoot-through risk during dead-time transitions. |
| Telecom DC-DC Module | Automotive Body Control Unit |
Use Scenario: Isolated 48 V → 12 V intermediate bus converter in 5G base station power system. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier operating at 250 kHz with zero-voltage switching assist. Use Value: Low Qg (71 nC) reduces gate drive loss; 20 V VDS provides safety margin over 12 V nominal output. | Use Scenario: High-side load switch for LED headlamp control in 12 V automotive architecture. IC Role / Device Role / Timing Role: Logic-level controlled power switch with integrated protection against load dump transients. Use Value: 4.5 V gate threshold allows direct MCU GPIO drive; 150 °C TJ rating supports under-hood placement near engine bay. |
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 | RDS(on) = 4.5 mΩ @ 4.5 V; lower ID (90 A @ TC = 100 °C); same D2PAK package. | Suitable for lower-current (<80 A) applications where slightly higher conduction loss is acceptable. | Select when cost sensitivity outweighs marginal efficiency gain from IRL3502STRLPBF's lower RDS(on). |
| STL220N3LLH6 | RDS(on) = 2.8 mΩ @ 4.5 V; higher Qg (105 nC); same VDS and package; trench MOSFET architecture. | Better conduction loss but demands stronger gate driver; preferred in fixed-frequency, low-duty-cycle apps. | Choose when maximizing efficiency at light-to-moderate loads justifies added gate drive complexity. |
Compared with IRL3713PBF and STL220N3LLH6, IRL3502STRLPBF delivers optimal balance of low RDS(on), manageable Qg, and proven ruggedness - making it ideal for high-reliability, high-current industrial and telecom power stages.
Availability
IRL3502STRLPBF is available at Aetrix Electronics and suitable for server VRMs, industrial motor drives, telecom DC-DC modules, and automotive body control units requiring stable component supply across extended production lifecycles.
Supply support for IRL3502STRLPBF 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 ISO 14001.
The IRL3502 belongs to Infineon's HEXFET® logic-level MOSFET product line, engineered specifically for high-efficiency, high-current DC-DC conversion and synchronous rectification in space-constrained, thermally demanding environments.
FAQ
What is the maximum continuous drain current for IRL3502STRLPBF at 100 °C case temperature?
The IRL3502STRLPBF supports 110 A continuous drain current when the case temperature is maintained at 100 °C, as specified in the datasheet under DC conditions with adequate PCB copper thermal relief. This rating assumes the device is mounted on a 1-inch² 2-oz copper pad with thermal vias to internal layers.
Does IRL3502STRLPBF require a gate resistor for typical switching applications?
A gate resistor is recommended to dampen ringing and control dV/dt, especially at switching frequencies above 100 kHz. Typical values range from 2.2 Ω to 10 Ω depending on driver strength and layout parasitics; omission may cause overshoot or shoot-through in half-bridge configurations.
Can IRL3502STRLPBF be used in parallel configurations?
Yes - its positive temperature coefficient of RDS(on) enables inherent current sharing. For stable parallel operation, match gate drive loop inductance and use individual gate resistors; ensure symmetrical PCB layout and thermal coupling to avoid thermal runaway.
Is the body diode of IRL3502STRLPBF suitable for freewheeling in synchronous rectifier designs?
Yes - the body diode has a reverse recovery time (trr) of 100 ns and soft recovery characteristics, making it suitable for synchronous rectification in buck and flyback converters up to 500 kHz. However, external Schottky diodes may still be preferred in ultra-high-frequency or zero-voltage-switching designs.
IRL3502STRLPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 110A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 7V
- Rds On (Max) @ Id, Vgs:
- 7mOhm @ 64A, 7V
- Vgs(th) (Max) @ Id:
- 700mV @ 250µA (Min)
- Gate Charge (Qg) (Max) @ Vgs:
- 110 nC @ 4.5 V
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 4700 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 140W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
IRL3502STRLPBF FAQ
1.How can I place an order for IRL3502STRLPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRL3502STRLPBF 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 IRL3502STRLPBF reliable?
The price and inventory of IRL3502STRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL3502STRLPBF is usually 5 days.
3.What payment methods are accepted for IRL3502STRLPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL3502STRLPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRL3502STRLPBF?
IRL3502STRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRL3502STRLPBF 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 IRL3502STRLPBF?
For technical support, including IRL3502STRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL3502STRLPBF requirements.
6.How does Aetrix verify that IRL3502STRLPBF is sourced from the original manufacturer or authorized distributors?
All IRL3502STRLPBF 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 IRL3502STRLPBF meets industry standards.
7.What is the process for return or replacement of IRL3502STRLPBF?
All IRL3502STRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL3502STRLPBF, 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 IRL3502STRLPBF part is unused and in its original packaging.
Return procedure for IRL3502STRLPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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