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Infineon Technologies IPB03N03LAG
- Part No.:
- IPB03N03LAG
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
IPB03N03LAG.pdf
- Description:
- N-CHANNEL POWER MOSFET
- Quantity:
- Payment:
- Shipping:
Inventory:703
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Product details
Overview
IPB03N03LAG from Infineon Technologies is an N-channel logic-level OptiMOS®2 power MOSFET in PG-TO263-3-2 package, rated for 25 V VDS, 2.7 mΩ RDS(on) (max) at VGS = 10 V, and 80 A continuous drain current at TC = 100 °C. It features dv/dt ruggedness, 175 °C operation, and is optimized for high-frequency DC/DC converters in server VRMs and POL modules.
For engineers reviewing the IPB03N03LAG datasheet, IPB03N03LAG pinout, IPB03N03LAG application, or IPB03N03LAG equivalent, key selection criteria include its low gate charge × RDS(on) figure-of-merit (FOM), thermal resistance of 1 K/W (junction-to-case), and robust avalanche energy rating of 960 mJ - critical for synchronous buck high-side switching reliability.
Technical Context
This device employs a trench-based silicon process delivering enhanced switching efficiency via low Qg (43–57 nC) and ultra-low RDS(on). Its gate threshold voltage (1.2–2.0 V typ.) enables direct drive from 3.3 V or 5 V logic controllers without level-shifting.
The integrated body diode supports synchronous rectification with low VSD (0.96–1.2 V at 80 A, 25 °C) and fast reverse recovery (Qrr = 20 nC), while dv/dt rating of 6 kV/µs ensures noise immunity in hard-switched topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 25 V - maximum blocking voltage for 12 V input rail systems |
| RDS(on) max | 2.7 mΩ at VGS = 10 V - enables <1 W conduction loss at 80 A |
| ID cont. | 80 A at TC = 100 °C - supports high-current point-of-load stages |
| Qg | 43–57 nC - reduces gate driver power and switching losses in MHz-range converters |
| EAS | 960 mJ - withstands single-pulse inductive energy without failure |
| RthJC | 1 K/W - allows efficient heatsinking to external copper planes on PCB |
| Tj max | 175 °C - supports operation in thermally constrained server and telecom environments |
Pinout & Package
IPB03N03LAG uses the PG-TO263-3-2 surface-mount package (also known as D²PAK), with exposed drain pad for thermal and electrical connection. The three terminals are arranged in standard TO263 layout: Pin 1 = Gate, Pin 2 = Drain (tab), Pin 3 = Source.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Gate) | Control electrode | Accepts logic-level gate drive (3.3 V/5 V); low Ciss (5.3–7.0 nF) minimizes Miller effect |
| Pin 2 (Drain) | Main current path output | Exposed copper tab - electrically and thermally connected to internal die drain; requires soldered PCB copper area ≥6 cm² |
| Pin 3 (Source) | Reference node for gate drive | Provides return path for load current and gate loop; low-inductance routing essential for EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | VGS(th) = 1.2–2.0 V - eliminates need for gate driver IC in 3.3 V microcontroller-controlled POL designs |
| Low FOM (Qg × RDS(on)) | ~120 nC·mΩ - improves efficiency in 300 kHz–1 MHz synchronous buck converters |
| dv/dt ruggedness | 6 kV/µs - prevents false turn-on during high-slew-rate switching transients |
| Enhanced thermal performance | RthJC = 1 K/W - enables >100 W power dissipation with minimal case temperature rise |
Applications
| Server Voltage Regulator Modules | Telecom DC/DC Converters |
|---|---|
Use Scenario: High-current, multi-phase buck converter supplying CPU core voltage in 1U rack servers. IC Role / Device Role / Timing Role: High-side synchronous MOSFET in 500 kHz–1 MHz phase-leg, switched by digital PWM controller. Use Value: Low RDS(on) and Qg reduce conduction and switching losses, enabling >92% efficiency at 100 A output. | Use Scenario: Intermediate bus converter (48 V to 12 V) in 5G base station power subsystem. IC Role / Device Role / Timing Role: Primary-side switch in hard-switched forward or active-clamp forward topology. Use Value: 175 °C rating and 960 mJ EAS ensure reliability under transient overload and line surges. |
| Industrial Motor Drive Inverters | Automotive ADAS Power Supplies |
Use Scenario: Low-voltage (24 V) inverter stage driving BLDC fans or pumps in factory automation equipment. IC Role / Device Role / Timing Role: Half-bridge high-side switch controlled via isolated gate driver. Use Value: dv/dt immunity prevents shoot-through during fast commutation in noisy industrial EMI environments. | Use Scenario: Compact 12 V input, 3.3 V/5 V output power supply for radar sensor ECUs in automotive ADAS systems. IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side of isolated flyback or forward converter. Use Value: Low VSD (0.96 V) and Qrr (20 nC) minimize reverse recovery loss and improve light-load efficiency. |
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 | RDS(on) = 3.0 mΩ (max), Qg = 60 nC, RthJC = 1.2 K/W | Higher conduction loss at >60 A; less suitable for >800 kHz switching | Prefer IPB03N03LAG where lower FOM and tighter RDS(on) tolerance are required |
| STL220N3LLH6 | RDS(on) = 2.5 mΩ (max), Qg = 52 nC, Tj max = 175 °C, but no dv/dt rating specified | Lacks documented dv/dt ruggedness - risk of spurious turn-on in noisy industrial settings | Select IPB03N03LAG when system-level EMI immunity is mandatory |
Compared with IRL3803PbF and STL220N3LLH6, IPB03N03LAG delivers superior FOM, guaranteed dv/dt rating, and tighter RDS(on) distribution - making it optimal for high-reliability, high-frequency synchronous buck designs where thermal margin and switching noise immunity are critical.
Availability
IPB03N03LAG is available at Aetrix Electronics and suitable for server VRMs, telecom DC/DC converters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for IPB03N03LAG 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 leadership in silicon and wide-bandgap power devices.
IPB03N03LAG belongs to the OptiMOS®2 family - engineered specifically for high-efficiency, high-frequency DC/DC conversion in computing and communications infrastructure.
FAQ
What is the maximum recommended gate-source voltage for reliable operation?
The absolute maximum VGS is ±20 V per datasheet. For long-term reliability, gate drive should be limited to +10 V to +15 V with transient clamping. Exceeding +15 V increases gate oxide stress and accelerates wear-out, especially at elevated junction temperatures above 125 °C.
Can IPB03N03LAG be used as a synchronous rectifier in a flyback converter?
Yes - its low VSD (0.96 V typ. at 80 A) and fast reverse recovery (Qrr = 20 nC) make it suitable for secondary-side synchronous rectification. However, proper gate timing control is required to avoid cross-conduction; a dedicated SR controller or transformer-coupled gate drive is recommended.
Is the PG-TO263-3-2 package lead-free and RoHS compliant?
Yes - IPB03N03LAG uses Pb-free lead plating and complies with RoHS Directive 2011/65/EU. The package meets JEDEC qualification standards for target applications and supports reflow soldering per IPC/JEDEC J-STD-020.
How does thermal resistance change with PCB copper area?
RthJA drops from 62 K/W (minimal footprint) to 40 K/W with 6 cm² of 70 µm-thick copper on FR4. This 35% improvement directly lowers steady-state Tj; for example, at 80 A and 2.7 mΩ, junction temperature decreases by ~18 °C when using the full 6 cm² cooling area.
IPB03N03LAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OptiMOS™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Bulk
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 25 V
- Current - Continuous Drain (Id) @ 25°C:
- 80A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 2.7mOhm @ 55A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 100µA
- Gate Charge (Qg) (Max) @ Vgs:
- 57 nC @ 5 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 7027 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 150W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO263-3-2
IPB03N03LAG FAQ
1.How can I place an order for IPB03N03LAG through Aetrix?
Please submit a Request for Quotation (RFQ) for IPB03N03LAG 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 IPB03N03LAG reliable?
The price and inventory of IPB03N03LAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPB03N03LAG is usually 5 days.
3.What payment methods are accepted for IPB03N03LAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPB03N03LAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IPB03N03LAG?
IPB03N03LAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IPB03N03LAG 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 IPB03N03LAG?
For technical support, including IPB03N03LAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPB03N03LAG requirements.
6.How does Aetrix verify that IPB03N03LAG is sourced from the original manufacturer or authorized distributors?
All IPB03N03LAG 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 IPB03N03LAG meets industry standards.
7.What is the process for return or replacement of IPB03N03LAG?
All IPB03N03LAG units undergo pre-shipment inspection (PSI). If there is an issue with IPB03N03LAG, 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 IPB03N03LAG part is unused and in its original packaging.
Return procedure for IPB03N03LAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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