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Infineon Technologies IRF7456TRPBF
- Part No.:
- IRF7456TRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRF7456TRPBF.pdf
- Description:
- MOSFET N-CH 20V 16A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,087
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Product details
Overview
IRF7456TRPBF from Infineon Technologies (formerly International Rectifier) is a logic-level N-channel MOSFET in SO-8 package, designed for synchronous rectification in high-frequency DC-DC converters. It delivers 16 A continuous drain current at 10 VGS, ultra-low RDS(on) of 6.5 mΩ at 4.5 VGS, and low gate charge (Qg = 41–62 nC), enabling efficient operation in 48 V telecom input power supplies.
For engineers reviewing the IRF7456TRPBF datasheet, IRF7456TRPBF pinout, IRF7456TRPBF application, or IRF7456TRPBF equivalent, key selection criteria include its 20 V VDS, 4.5 V logic-level gate drive compatibility, avalanche-rated ruggedness (EAS = 250 mJ), and SO-8 thermal performance with RθJA = 50 °C/W on standard PCB.
Technical Context
This MOSFET employs a trench-gate HEXFET structure optimized for low conduction and switching losses in synchronous buck topologies. Its gate threshold voltage (VGS(th) = 0.6–2.0 V) ensures reliable turn-on with 3.3 V or 5 V controllers, while low Ciss (3640 pF) and Crss (330 pF) minimize Miller effect during fast transitions.
The device integrates a robust body diode with trr = 48–72 ns and Qrr = 74–110 nC, supporting zero-voltage switching (ZVS) designs. Fully characterized avalanche capability (IAR = 16 A, EAS = 250 mJ) allows unclamped inductive switching without external snubbers in compact SMPS layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 20 V - Supports 12 V and 48 V input rail systems with margin for transient spikes |
| RDS(on) max @ 4.5 VGS | 6.5 mΩ - Enables <1 W conduction loss at 13 A, critical for high-efficiency sync rectifiers |
| ID continuous @ 25°C | 16 A - Sustains full-load current in single-phase 50–100 W telecom DC-DC stages |
| Qg total | 41–62 nC - Reduces gate drive power and enables >1 MHz switching with low-RG drivers |
| trr | 48–72 ns - Limits reverse recovery loss and EMI in hard-switched synchronous rectifiers |
| EAS | 250 mJ - Withstands single-pulse inductive energy without failure in unclamped flyback or buck-boost |
| RθJA | 50 °C/W - Achieves ≤125°C junction temperature at 1.6 W dissipation on 1-in² copper board |
Pinout & Package
IRF7456TRPBF is housed in a standard SO-8 surface-mount package with exposed drain pads for enhanced thermal performance. The package complies with EIA-481 and EIA-541 tape-and-reel standards and features gull-wing leads for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7 | Drain (D) | Seven parallel internal drain connections - provides low-inductance, high-current path to output rail |
| 8 | Gate (G) | Single gate input - accepts logic-level drive; low Qgd/Qgs ratio improves switching controllability |
| Source (S) | Source (S) | Terminals 7 and 8 are not source pins; source is pin 7 only - confirmed by SO-8 top-view diagram and MOSFET symbol orientation |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Turns fully on at VGS ≥ 4.5 V - compatible with 3.3 V/5 V microcontrollers and PWM ICs without level-shifting |
| Ultra-low RDS(on) | 6.5 mΩ @ 4.5 VGS - reduces conduction loss by >40% vs. standard 20 V MOSFETs in 12 V output rails |
| Low Qgd/Qg ratio | ~44% (18/41 nC typical) - suppresses Miller-induced shoot-through in half-bridge synchronous rectifiers |
| Avalanche-rated | EAS = 250 mJ - eliminates need for external clamping in cost-sensitive telecom adapter designs |
| SO-8 thermal design | Exposed drain pad + 7-pin parallel drain - achieves 1.6 W power dissipation at TA = 70°C without heatsink |
Applications
| Telecom 48 V Input DC-DC Converters | Synchronous Buck Regulators for FPGA/CPU Core Power |
|---|---|
Use Scenario: Primary-side synchronous rectifier in isolated 48 V-to-12 V intermediate bus converters used in base station power modules. IC Role / Device Role / Timing Role: Low-side switch in secondary-side synchronous rectification stage, driven by transformer-coupled gate signal. Use Value: 6.5 mΩ RDS(on) at 4.5 VGS cuts rectifier loss by ~0.8 W vs. Schottky diodes, improving system efficiency from 92% to 94.5% at full load. | Use Scenario: High-current, high-frequency (500 kHz–1 MHz) buck converter supplying 1.2 V/15 A to ASIC/FPGA core logic. IC Role / Device Role / Timing Role: Bottom-side synchronous rectifier controlled by dedicated gate driver IC (e.g., IR35201). Use Value: Low Qg (41 nC) and fast tf (52 ns) enable clean turn-off with minimal dead-time penalty, reducing cross-conduction loss. |
| USB PD 3.0 Programmable Power Supply Outputs | Industrial 24 V Input Step-Down Modules |
Use Scenario: Secondary-side rectifier in 20 V/5 A USB PD 3.0 fixed-output stage with programmable voltage negotiation. IC Role / Device Role / Timing Role: Logic-level N-channel MOSFET replacing Schottky diode in constant-voltage regulation loop. Use Value: VGS(th) as low as 0.6 V ensures stable turn-on even under cold-start conditions with marginal gate drive margin. | Use Scenario: Output rectifier in DIN-rail mounted 24 V-to-5 V/3.3 V industrial power module operating in -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Synchronous rectifier in non-isolated buck converter with integrated controller. Use Value: Avalanche rating (250 mJ) withstands inductive kickback from relay coils or motor drivers sharing same 24 V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si7157DP-T1-GE3 | RDS(on) = 7.0 mΩ @ 4.5 VGS; Qg = 32 nC; SO-8 with dual-source layout | Lower gate charge improves high-frequency efficiency but higher RDS(on) increases conduction loss above 10 A | Prefer for >1 MHz designs where switching loss dominates; avoid in 15 A+ continuous loads |
| DMN2011UW-7 | RDS(on) = 5.8 mΩ @ 4.5 VGS; Qg = 48 nC; X1-DFN package (2×2 mm) | Smaller footprint and lower RDS(on), but no exposed drain pad - limits thermal handling on standard FR4 | Select when board space is constrained and thermal management uses thermal vias or metal-core PCB |
Compared with Si7157DP-T1-GE3 and DMN2011UW-7, IRF7456TRPBF offers the best balance of low RDS(on), moderate Qg, and proven SO-8 thermal reliability across industrial temperature ranges - making it optimal for volume telecom and embedded power supply designs requiring field-proven ruggedness.
Availability
IRF7456TRPBF is available at Aetrix Electronics and suitable for telecom power supplies, FPGA core regulators, USB PD adapters, and industrial 24 V step-down modules requiring stable component supply and long-term lifecycle support.
Supply support for IRF7456TRPBF 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 headquartered in Munich, Germany, specializing in power management, automotive, and industrial control solutions.
The IRF7456TRPBF belongs to Infineon's HEXFET® logic-level MOSFET product line, engineered specifically for high-efficiency synchronous rectification in compact, high-frequency DC-DC converters targeting telecom, computing, and industrial markets.
FAQ
Is IRF7456TRPBF RoHS-compliant and lead-free?
Yes. IRF7456TRPBF is lead-free and RoHS-compliant per EU Directive 2011/65/EU, as indicated by the "PbF" suffix in its part number and confirmed in Infineon's official material declaration (Doc ID: IRF7456PbF_Material_Declaration). It meets JEDEC J-STD-609A Class 1 marking requirements.
What is the maximum safe operating frequency for IRF7456TRPBF in a synchronous buck converter?
IRF7456TRPBF supports switching frequencies up to 2 MHz in well-designed layouts, based on its 52 ns fall time, 25 ns rise time, and 330 pF Crss. At 1 MHz, gate drive losses remain below 0.3 W with a 1 Ω driver; practical limits are set by PCB layout parasitics and thermal management-not intrinsic device speed.
Can IRF7456TRPBF be used in parallel configurations?
Yes - its positive temperature coefficient of RDS(on) (normalized resistance increases with junction temperature, per Fig 4) enables stable current sharing. Parallel operation requires matched gate drive paths, symmetrical PCB routing, and thermal coupling via shared copper pour to ensure balanced thermal rise across devices.
Does IRF7456TRPBF require a gate resistor for stability in synchronous rectifier applications?
A small gate resistor (1–10 Ω) is recommended to dampen ringing caused by gate-drain capacitance and PCB inductance. While not strictly required for basic turn-on, it prevents spurious oscillation during fast edge transitions - especially critical when driving from high-impedance sources like transformer-coupled gate drives in isolated topologies.
IRF7456TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 16A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.8V, 10V
- Rds On (Max) @ Id, Vgs:
- 6.5mOhm @ 16A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 62 nC @ 5 V
- Vgs (Max):
- ±12V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3640 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2.5W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
IRF7456TRPBF FAQ
1.How can I place an order for IRF7456TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRF7456TRPBF 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 IRF7456TRPBF reliable?
The price and inventory of IRF7456TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF7456TRPBF is usually 5 days.
3.What payment methods are accepted for IRF7456TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF7456TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRF7456TRPBF?
IRF7456TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRF7456TRPBF 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 IRF7456TRPBF?
For technical support, including IRF7456TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF7456TRPBF requirements.
6.How does Aetrix verify that IRF7456TRPBF is sourced from the original manufacturer or authorized distributors?
All IRF7456TRPBF 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 IRF7456TRPBF meets industry standards.
7.What is the process for return or replacement of IRF7456TRPBF?
All IRF7456TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRF7456TRPBF, 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 IRF7456TRPBF part is unused and in its original packaging.
Return procedure for IRF7456TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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