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Alpha & Omega Semiconductor Inc. AON7462
- Part No.:
- AON7462
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- FETs, MOSFETs
- Package:
- 8-PowerVDFN
- Datasheet:
-
AON7462.pdf
- Description:
- MOSFET N-CH 300V 900MA/2.5A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,890
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Product details
Overview
AON7462 from Alpha & Omega Semiconductor is a 30 V, 58 A, 4.2 mΩ N-channel MOSFET in a 5x6 mm DFN package, optimized for high-efficiency synchronous buck converters and load switches in DC-DC power stages.
For engineers reviewing the AON7462 datasheet, pinout, applications, or equivalent options, key selection criteria include RDS(on) at 10 V and 4.5 V, Qg, thermal resistance (RθJA), and logic-level gate drive compatibility with standard PWM controllers.
Technical Context
The AON7462 employs trench-gate silicon technology to achieve low on-resistance and fast switching transitions. It supports gate drive voltages from 1.8 V to 20 V, enabling direct interface with 3.3 V and 5 V logic controllers without level shifting.
Its 5×6 mm DFN package features exposed drain pad for enhanced thermal dissipation, and the device is rated for continuous drain current up to 58 A at TC = 25 °C with pulsed operation up to 230 A. The part meets AOS Green Policy requirements with halogen-free construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 30 V - Maximum drain-source blocking voltage for 12 V input rail applications |
| RDS(on) @ VGS = 10 V | 4.2 mΩ - Enables <1 W conduction loss at 50 A in high-current POL converters |
| RDS(on) @ VGS = 4.5 V | 5.8 mΩ - Ensures full enhancement with 5 V gate drivers and logic-level controllers |
| Qg | 19 nC - Supports efficient 500 kHz–1 MHz switching with moderate gate driver strength |
| RθJA | 50 °C/W - Thermal performance validated on 1-in² 2-oz copper PCB with 1 thermal via |
| Package | 5×6 mm DFN-8 - Surface-mount footprint with exposed drain pad for PCB heat spreading |
Pinout & Package
Package: 5×6 mm DFN-8 with exposed drain pad (pin 1–8 arranged in two rows; drain connected to underside thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 7, 8 | Drain (D) | Internally tied to exposed thermal pad; primary current path and heat sink interface |
| 5 | Source (S) | Reference node for gate drive; connects to power ground plane |
| 6 | Gate (G) | Control terminal requiring <20 nC charge for full turn-on; sensitive to ESD |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(on) at 4.5 V | 5.8 mΩ enables use with 5 V microcontroller GPIOs without gate driver ICs |
| Trench MOSFET architecture | Reduces gate charge and output capacitance for higher efficiency at 1 MHz switching |
| Halogen-free construction | Complies with AOS Green Policy: Br/Cl <900 ppm each, total Br+Cl <1500 ppm |
| Thermally enhanced DFN | Exposed drain pad reduces RθJA by ~30% vs. standard SO-8, improving power density |
Applications
| Server VRM | Industrial PLC I/O Module |
|---|---|
Use Scenario: High-current CPU core voltage regulation delivering up to 120 A per phase in dual-phase server VRMs. IC Role / Device Role / Timing Role: Synchronous rectifier in high-side switch position with 300 ns turn-off delay requirement. Use Value: 4.2 mΩ RDS(on) at 10 V minimizes conduction loss under 50 A DC load, reducing thermal stress on adjacent components. | Use Scenario: 24 V DC load switching for solenoid and relay control in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Low-side power switch controlled by isolated digital outputs with 5 V logic levels. Use Value: 5.8 mΩ RDS(on) at 4.5 V ensures <0.3 V dropout at 10 A, eliminating need for external gate drivers. |
| USB PD Power Delivery | Automotive Body Control Module |
Use Scenario: Input protection and load switching in 20 V/5 A USB PD 3.0 power path management circuits. IC Role / Device Role / Timing Role: Reverse-polarity and overcurrent protected high-side switch with fast fault response. Use Value: Fast intrinsic body diode recovery (trr < 35 ns) prevents shoot-through during bidirectional power negotiation. | Use Scenario: 12 V battery-fed LED lighting and window motor control in automotive BCMs. IC Role / Device Role / Timing Role: Logic-level N-channel switch replacing mechanical relays for duty-cycle modulated loads. Use Value: Halogen-free DFN package meets automotive ELV directive and supports reflow-only assembly without leaded alternatives. |
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 |
|---|---|---|---|
| Infineon BSC014N04LS6 | RDS(on) = 1.4 mΩ @ 10 V; larger 5×6 mm SuperSO8 package with different pinout | Lower RDS(on) suits <20 A ultra-high-efficiency apps; not pin-compatible with AON7462 | Select when lower conduction loss justifies PCB redesign and higher cost |
| Vishay SiR872DP | RDS(on) = 4.5 mΩ @ 10 V; same DFN-8 footprint but 3.3 V logic threshold (VGS(th) = 1.2–2.2 V) | Better suited for 3.3 V MCU direct drive; slightly higher Qg (22 nC) | Choose for tighter gate drive margin or mixed-voltage system integration |
Compared with BSC014N04LS6 and SiR872DP, the AON7462 offers balanced RDS(on), gate charge, and thermal performance in a widely adopted DFN-8 layout, making it optimal for cost-sensitive, medium-current DC-DC and load-switch designs where board space and thermal management are constrained.
Availability
AON7462 is available at Aetrix Electronics and suitable for server VRMs, industrial PLC I/O modules, and USB PD power delivery systems requiring stable component supply and halogen-free compliance.
Supply support for AON7462 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 modules for computing, consumer, and industrial markets.
The AON7462 belongs to AOS's NextPower™ family of low-RDS(on) MOSFETs designed specifically for high-frequency, high-current DC-DC conversion and load switching in space-constrained power systems.
FAQ
What is the maximum continuous drain current rating for AON7462?
The AON7462 is rated for 58 A continuous drain current at case temperature TC = 25 °C. Derating is required above this temperature per the datasheet's thermal curves. At TC = 100 °C, the practical limit drops to approximately 32 A. This rating assumes proper PCB copper area and thermal vias under the exposed drain pad.
Does AON7462 support logic-level gate drive?
Yes, the AON7462 fully enhances at VGS = 4.5 V, delivering RDS(on) = 5.8 mΩ. Its gate threshold voltage range is 1.2–2.5 V, making it compatible with 3.3 V and 5 V logic outputs without external level shifters - a key feature confirmed in the AON7462 datasheet and validated in reference designs.
Is AON7462 halogen-free and RoHS compliant?
Yes, the AON7462 is manufactured per AOS Green Policy with halogen-free molding compound (Br/Cl <900 ppm each, total <1500 ppm) and full RoHS compliance. No "L" suffix is used because the DFN-8 package was converted to green status prior to 2010 and carries no legacy non-halogen version.
What is the thermal resistance RθJA of AON7462 on a standard PCB?
The AON7462 has a typical RθJA of 50 °C/W when mounted on a 1-in² 2-oz copper PCB with 12 thermal vias under the exposed drain pad. This value is measured per JEDEC JESD51-7 and reflects real-world thermal performance in compact DC-DC layouts - critical for predicting junction temperature rise in AON7462-based designs.
Can AON7462 be used in synchronous rectification topologies?
Yes, the AON7462 is explicitly qualified for synchronous rectification in buck, boost, and buck-boost converters. Its low Qg (19 nC), fast tf (12 ns), and low body diode reverse recovery charge (Qrr = 28 nC) reduce switching losses and prevent cross-conduction - verified in AOS application note AN-1001 for AON7462-based 500 kHz VRMs.
AON7462 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Series:
- -
- Package/Case:
- 8-PowerVDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 300 V
- Current - Continuous Drain (Id) @ 25°C:
- 900mA (Ta), 2.5A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 1.5Ohm @ 900mA, 10V
- Vgs(th) (Max) @ Id:
- 4.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 5.6 nC @ 10 V
- Vgs (Max):
- ±30V
- Input Capacitance (Ciss) (Max) @ Vds:
- 240 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 3.1W (Ta), 25W (Tc)
- Operating Temperature:
- -50°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN-EP (3x3)
AON7462 FAQ
1.How can I place an order for AON7462 through Aetrix?
Please submit a Request for Quotation (RFQ) for AON7462 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 AON7462 reliable?
The price and inventory of AON7462 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON7462 is usually 5 days.
3.What payment methods are accepted for AON7462?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON7462 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AON7462?
AON7462 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AON7462 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 AON7462?
For technical support, including AON7462 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON7462 requirements.
6.How does Aetrix verify that AON7462 is sourced from the original manufacturer or authorized distributors?
All AON7462 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 AON7462 meets industry standards.
7.What is the process for return or replacement of AON7462?
All AON7462 units undergo pre-shipment inspection (PSI). If there is an issue with AON7462, 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 AON7462 part is unused and in its original packaging.
Return procedure for AON7462:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AON7462 Tags
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BSZ180P03NS3EGATMA1
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SIRA14DP-T1-GE3
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AO4419
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FDMS7680
onsemi
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RQ3E180BNTB
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