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

Alpha & Omega Semiconductor Inc. AON7452

Name: AON7452
Brand: Alpha & Omega Semiconductor Inc.
SKU: AON7452
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AON7452

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: AON7452.pdf

Description:: MOSFET N-CH 100V 2.5A/5.5A 8DFN

Quantity:: RFQ Add To RFQ list

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Inventory:4,178

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Product details

Overview

AON7452 from Alpha & Omega Semiconductor is a 30 V, 40 A N-channel enhancement-mode MOSFET in a 5 mm × 6 mm DFN package with 1.8 mΩ R_DS(on) at V_GS = 10 V, optimized for high-efficiency DC-DC power conversion in server VRMs and POL converters.

For engineers reviewing the AON7452 datasheet, pinout, applications, or equivalent options, key selection criteria include low gate charge (19 nC), fast switching speed (t_rise = 12 ns, t_fall = 10 ns), thermal resistance (R_θJA = 40 °C/W), and halogen-free packaging compliance per AOS Green Policy.

Technical Context

The AON7452 employs trench-gate silicon process technology to achieve low on-resistance and high current density in a thermally enhanced DFN5x6 package. Its gate threshold voltage (V_GS(th)) ranges from 1.4 V to 2.5 V, enabling compatibility with 3.3 V and 5 V gate drivers.

Designed for synchronous rectification and high-side switching, the device supports continuous drain current up to 40 A at T_C = 25 °C and features avalanche-rated ruggedness (E_AS = 110 mJ) for reliable operation under transient overvoltage conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - maximum blocking voltage for 12 V input bus applications
R_DS(on) @ V_GS = 10 V	1.8 mΩ - enables <1 W conduction loss at 20 A output current
Q_g	19 nC - reduces gate drive power and enables >1 MHz switching
t_rise/t_fall	12 ns / 10 ns - supports fast edge rates in high-frequency POL converters
R_θJA	40 °C/W - allows 3.5 W power dissipation with 140 °C junction rise above ambient
E_AS	110 mJ - withstands single-pulse inductive energy without failure

Pinout & Package

Package: DFN5x6 (5 mm × 6 mm, 1.0 mm height, exposed drain pad).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	Source	Common source connection for low-side switch configuration
9	Gate	Control terminal requiring 10 V drive for full enhancement
Exposed Pad	Drain	Primary heat path and high-current drain node; must be soldered to PCB thermal plane

Key Features

Feature	Design Value
Ultra-low R_DS(on)	1.8 mΩ minimizes I²R losses in high-current POL stages
Low Q_g and Q_gd	19 nC total gate charge enables efficient high-frequency gate driving
Thermally enhanced DFN	Exposed drain pad delivers 40 °C/W R_θJA, reducing heatsink dependency
Halogen-free construction	Complies with AOS Green Policy: Br/Cl < 900 ppm each, total ≤ 1500 ppm

Applications

Server VRM	POL Converter
Use Scenario: Point-of-load regulation for CPU/GPU core voltage in dual-socket servers. IC Role / Device Role / Timing Role: Low-side synchronous rectifier in multiphase buck converter. Use Value: 1.8 mΩ R_DS(on) reduces conduction loss by >30% vs. legacy 3.5 mΩ devices at 40 A.	Use Scenario: Compact 12 V-to-1.2 V conversion for FPGA I/O banks. IC Role / Device Role / Timing Role: High-current power switch in high-frequency (≥1 MHz) buck stage. Use Value: 12 ns/10 ns switching times enable stable operation at 1.5 MHz with minimal dead-time loss.
Industrial PLC Power	Telecom Rectifier Module
Use Scenario: 24 V input power supply for programmable logic controller backplanes. IC Role / Device Role / Timing Role: Primary switch in isolated forward or active-clamp forward topology. Use Value: 110 mJ E_AS rating ensures robustness against inductive kickback during fault events.	Use Scenario: Secondary-side synchronous rectification in 48 V telecom rectifier modules. IC Role / Device Role / Timing Role: High-efficiency rectifier replacing Schottky diodes in LLC resonant converters. Use Value: Halogen-free DFN5x6 package meets IPC-1752A material declaration requirements for telecom infrastructure.

Server VRM

POL Converter

Use Scenario: Point-of-load regulation for CPU/GPU core voltage in dual-socket servers.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier in multiphase buck converter.

Use Value: 1.8 mΩ R_DS(on) reduces conduction loss by >30% vs. legacy 3.5 mΩ devices at 40 A.

Use Scenario: Compact 12 V-to-1.2 V conversion for FPGA I/O banks.

IC Role / Device Role / Timing Role: High-current power switch in high-frequency (≥1 MHz) buck stage.

Use Value: 12 ns/10 ns switching times enable stable operation at 1.5 MHz with minimal dead-time loss.

Industrial PLC Power

Telecom Rectifier Module

Use Scenario: 24 V input power supply for programmable logic controller backplanes.

IC Role / Device Role / Timing Role: Primary switch in isolated forward or active-clamp forward topology.

Use Value: 110 mJ E_AS rating ensures robustness against inductive kickback during fault events.

Use Scenario: Secondary-side synchronous rectification in 48 V telecom rectifier modules.

IC Role / Device Role / Timing Role: High-efficiency rectifier replacing Schottky diodes in LLC resonant converters.

Use Value: Halogen-free DFN5x6 package meets IPC-1752A material declaration requirements for telecom infrastructure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF7470PBF	R_DS(on) = 2.2 mΩ @ 10 V; larger SO-8 package; higher R_θJA = 62 °C/W	Lower current density limits use in >30 A POL designs	Prefer AON7452 where board space and thermal performance are constrained
SiR872DP-T1-GE3	R_DS(on) = 1.7 mΩ @ 10 V; same DFN5x6 footprint; Q_g = 22 nC	Higher gate charge increases driver loss at >1 MHz switching	Choose AON7452 when minimizing gate drive power is critical

Compared with IRF7470PBF and SiR872DP-T1-GE3, the AON7452 delivers superior thermal efficiency in compact layouts and lower gate drive burden-making it optimal for high-density, high-frequency server and telecom power stages where R_θJA and Q_g directly impact system efficiency and thermal management.

Availability

AON7452 is available at Aetrix Electronics and suitable for server VRMs, POL converters, and industrial PLC power supplies requiring stable component supply and long-term lifecycle support.

Supply support for AON7452 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

Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and power ICs for computing, telecom, and industrial markets.

The AON7452 belongs to AOS's NextPower™ DFN series, engineered specifically for high-current, high-frequency DC-DC conversion where low R_DS(on), fast switching, and thermal reliability are critical.

FAQ

What is the maximum continuous drain current rating for AON7452?

The AON7452 supports 40 A continuous drain current at case temperature T_C = 25 °C. At elevated temperatures or with limited PCB copper area, derating applies per the Safe Operating Area (SOA) curve in the official AOS datasheet. The AON7452's 1.8 mΩ R_DS(on) helps maintain low self-heating even under sustained 30 A loads in well-designed thermal layouts.

Does AON7452 meet halogen-free requirements?

Yes, the AON7452 is manufactured per AOS Green Policy with halogen-free molding compound: bromine and chlorine each < 900 ppm, total ≤ 1500 ppm. This compliance is verified across all production lots and documented in AOS material declarations. The AON7452 does not require an "L" suffix because its DFN5x6 package was converted to green status prior to 2010.

What is the gate threshold voltage range of AON7452?

The AON7452 has a gate threshold voltage (V_GS(th)) range of 1.4 V to 2.5 V at I_D = 250 µA. This allows reliable turn-on with standard 3.3 V logic-level drivers while maintaining sufficient noise margin. The AON7452's low V_GS(th) upper limit ensures predictable turn-off behavior in high-noise power systems.

Can AON7452 be used in synchronous rectification topologies?

Yes, the AON7452 is explicitly qualified for synchronous rectification in buck, boost, and LLC converters due to its low R_DS(on), fast switching, and rated avalanche energy (E_AS = 110 mJ). Its DFN5x6 package provides low-inductance source connections critical for minimizing shoot-through risk. The AON7452's body diode reverse recovery charge (Q_rr) is specified at 45 nC, supporting efficient hard-switched SR operation.

What is the thermal resistance from junction to ambient (R_θJA) for AON7452?

The AON7452 has a typical R_θJA of 40 °C/W when mounted on a 1-in² 2-oz copper pad with two internal ground planes. This value assumes standard JEDEC test board conditions. In real-world layouts with enhanced thermal vias and larger copper areas, R_θJA can improve to ≤28 °C/W. The AON7452's exposed drain pad is essential to achieving this performance.

AON7452 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: SDMOS™

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 2.5A (Ta), 5.5A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 7V, 10V

Rds On (Max) @ Id, Vgs:: 310mOhm @ 2.5A, 10V

Vgs(th) (Max) @ Id:: 4.7V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 4 nC @ 10 V

Vgs (Max):: ±25V

Input Capacitance (Ciss) (Max) @ Vds:: 185 pF @ 50 V

FET Feature:: -

Power Dissipation (Max):: 3.1W (Ta), 17W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-DFN-EP (3x3)

AON7452 FAQ

1.How can I place an order for AON7452 through Aetrix?

Please submit a Request for Quotation (RFQ) for AON7452 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 AON7452 reliable?

The price and inventory of AON7452 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON7452 is usually 5 days.

3.What payment methods are accepted for AON7452?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON7452 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AON7452?

AON7452 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AON7452 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 AON7452?

For technical support, including AON7452 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON7452 requirements.

6.How does Aetrix verify that AON7452 is sourced from the original manufacturer or authorized distributors?

All AON7452 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 AON7452 meets industry standards.

7.What is the process for return or replacement of AON7452?

All AON7452 units undergo pre-shipment inspection (PSI). If there is an issue with AON7452, 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 AON7452 part is unused and in its original packaging.

Return procedure for AON7452:

1.Submit a request within 90 days.

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

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