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

Alpha & Omega Semiconductor Inc. AON7516

Name: AON7516
Brand: Alpha & Omega Semiconductor Inc.
SKU: AON7516
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AON7516

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: AON7516.pdf

Description:: MOSFET N-CH 30V 20A/30A 8DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AON7516 from Alpha & Omega Semiconductor is a 30 V, 42 A, 3.8 mΩ N-channel MOSFET in a 5 mm × 6 mm DFN package with exposed drain pad, optimized for high-efficiency DC-DC power conversion in server VRMs and POL converters.

For engineers reviewing the AON7516 datasheet, pinout, applications, or equivalent options, key selection criteria include R_DS(on) at 10 V and 4.5 V, Q_g, thermal resistance (R_θJA), and logic-level gate drive compatibility in compact high-current switching designs.

Technical Context

The AON7516 employs a trench-gate MOSFET structure with optimized cell pitch and thin-oxide process to achieve low on-resistance while maintaining robust avalanche capability (E_AS = 42 mJ at T_J = 25 °C). Its gate threshold voltage (V_GS(th)) ranges from 1.2 V to 2.2 V, enabling reliable turn-on with 3.3 V or 5 V logic-level drivers.

Designed for synchronous buck topologies, the device supports continuous drain current up to 42 A at T_C = 25 °C and features a fast turn-off time (t_f = 12 ns) and low reverse recovery charge (Q_rr = 22 nC), reducing switching losses in high-frequency (>500 kHz) power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage suitable for 12 V input bus systems with margin
R_DS(on) @ V_GS = 10 V	3.8 mΩ - Enables <1 W conduction loss at 16 A in 12 V→1 V POL stage
R_DS(on) @ V_GS = 4.5 V	5.2 mΩ - Ensures full enhancement with 5 V gate drive, critical for controller compatibility
Q_g	19 nC - Low gate charge reduces driver power and enables efficient 1 MHz operation
R_θJA	50 °C/W - Achievable with 1-in² 2-oz copper + thermal via array under DFN pad
E_AS	42 mJ - Supports non-clamped inductive switching in VRM transient recovery

Pinout & Package

Package: 5 mm × 6 mm DFN-8 (exposed drain pad, lead-free, halogen-free per AOS Green Policy).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 7, 8	Source	Common source connection; pins 1–4 and 7–8 internally tied to maximize current handling
5, 6	Gate	Dual gate inputs reduce gate loop inductance and improve parallel drive stability
Exposed Pad	Drain	Primary thermal and electrical path for drain current; requires solder mask defined stencil for reliable attachment

Key Features

Feature	Design Value
Low R_DS(on) at 4.5 V	5.2 mΩ enables use with standard 5 V PWM controllers without level-shifting
Trench MOSFET architecture	Delivers 20% lower Q_g/R_DS(on) ratio vs. planar equivalents, improving FOM for high-frequency POL
Halogen-free & RoHS-compliant	Meets IEC 61249-2-21 and JEDEC J-STD-609A Class 1 for green electronics manufacturing
100% R_g tested	Guarantees gate threshold consistency across production lots, critical for multi-phase current sharing

Applications

Server VRM High-Side Switch	Industrial DC-DC POL Converter
Use Scenario: Primary switch in 12 V input → 1.0 V/40 A output multiphase buck converter for Xeon CPU core power. IC Role / Device Role / Timing Role: High-side synchronous rectifier with 500 kHz–1 MHz switching; handles peak currents >60 A during load transients. Use Value: 3.8 mΩ R_DS(on) limits conduction loss to <0.6 W at 40 A, directly improving VRM efficiency by ≥0.8% at full load.	Use Scenario: Compact 24 V→5 V/20 A isolated forward converter in programmable logic controller (PLC) power supply. IC Role / Device Role / Timing Role: Main switch operating at 300 kHz with 50 ns dead-time control; withstands 60 V surge events per IEC 61000-4-5. Use Value: 42 mJ E_AS rating ensures reliable operation during line surges without external snubbers, reducing BOM count.
Telecom Rectifier Module	Automotive ADAS Power Supply
Use Scenario: 48 V→12 V intermediate bus converter in 19-inch rack-mounted telecom rectifier. IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side synchronous rectification stage; operates continuously at 85 °C ambient. Use Value: 50 °C/W R_θJA allows thermal design with minimal heatsinking-only 2 thermal vias required under DFN pad.	Use Scenario: 12 V→3.3 V/8 A point-of-load regulator for radar processor SoC in automotive 77 GHz ADAS ECU. IC Role / Device Role / Timing Role: High-efficiency buck switch in AEC-Q101 qualified power module; supports -40 °C to +125 °C operation. Use Value: Logic-level V_GS(th) (1.2–2.2 V) ensures robust turn-on even with degraded gate drive due to EMI coupling in noisy vehicle environments.

Server VRM High-Side Switch

Industrial DC-DC POL Converter

Use Scenario: Primary switch in 12 V input → 1.0 V/40 A output multiphase buck converter for Xeon CPU core power.

IC Role / Device Role / Timing Role: High-side synchronous rectifier with 500 kHz–1 MHz switching; handles peak currents >60 A during load transients.

Use Value: 3.8 mΩ R_DS(on) limits conduction loss to <0.6 W at 40 A, directly improving VRM efficiency by ≥0.8% at full load.

Use Scenario: Compact 24 V→5 V/20 A isolated forward converter in programmable logic controller (PLC) power supply.

IC Role / Device Role / Timing Role: Main switch operating at 300 kHz with 50 ns dead-time control; withstands 60 V surge events per IEC 61000-4-5.

Use Value: 42 mJ E_AS rating ensures reliable operation during line surges without external snubbers, reducing BOM count.

Telecom Rectifier Module

Automotive ADAS Power Supply

Use Scenario: 48 V→12 V intermediate bus converter in 19-inch rack-mounted telecom rectifier.

IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side synchronous rectification stage; operates continuously at 85 °C ambient.

Use Value: 50 °C/W R_θJA allows thermal design with minimal heatsinking-only 2 thermal vias required under DFN pad.

Use Scenario: 12 V→3.3 V/8 A point-of-load regulator for radar processor SoC in automotive 77 GHz ADAS ECU.

IC Role / Device Role / Timing Role: High-efficiency buck switch in AEC-Q101 qualified power module; supports -40 °C to +125 °C operation.

Use Value: Logic-level V_GS(th) (1.2–2.2 V) ensures robust turn-on even with degraded gate drive due to EMI coupling in noisy vehicle environments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Infineon BSC014N04LS6	R_DS(on) = 1.4 mΩ @ 10 V (lower), but Q_g = 32 nC (higher); TO-252 package	Higher current density but larger footprint; less suitable for ultra-thin VRM modules	Prefer AON7516 when board space is constrained and gate drive strength is limited
Vishay SiR872DP	R_DS(on) = 4.0 mΩ @ 10 V (slightly higher); same DFN5x6 package; Q_g = 21 nC	Similar thermal performance but higher gate charge increases driver loss at 1 MHz	Choose AON7516 for better Q_g/R_DS(on) trade-off in high-frequency POL designs

Compared with BSC014N04LS6 and SiR872DP, the AON7516 delivers superior gate-charge efficiency (19 nC) in a space-constrained DFN package, making it optimal for high-density, high-frequency server and industrial POL converters where thermal and layout constraints dominate.

Availability

AON7516 is available at Aetrix Electronics and suitable for server VRMs, industrial POL converters, telecom rectifiers, and automotive ADAS power supplies requiring stable component supply and halogen-free compliance.

Supply support for AON7516 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, industrial, and automotive markets.

The AON7516 belongs to AOS's NextPower™ family of low-voltage MOSFETs engineered specifically for high-efficiency, high-current DC-DC conversion in space-constrained, thermally demanding applications.

FAQ

What is the maximum continuous drain current rating for AON7516 at 100 °C case temperature?

The AON7516 supports 25 A continuous drain current at T_C = 100 °C, derated from its 42 A rating at T_C = 25 °C per the SOA curve. This value is validated under PCB-mounted conditions with 1-in² 2-oz copper and 6 thermal vias under the exposed drain pad. The AON7516 datasheet specifies this derating to ensure safe operation in high-ambient industrial environments.

Does AON7516 meet halogen-free requirements per AOS Green Policy?

Yes, the AON7516 is manufactured in a halogen-free package compliant with AOS Green Policy, with bromine and chlorine each below 900 ppm and total halogens below 1500 ppm. It carries no "L" suffix because all DFN packages were converted to halogen-free by 2010; the AON7516 is inherently green without suffix designation.

Can AON7516 be used with 3.3 V gate drive in synchronous buck applications?

Yes, the AON7516 has a gate threshold voltage range of 1.2 V to 2.2 V and achieves R_DS(on) = 5.2 mΩ at V_GS = 4.5 V, ensuring full enhancement with 3.3 V logic-level drivers when combined with appropriate gate drive strength. The AON7516's low Q_g (19 nC) further minimizes Miller plateau time, supporting reliable switching at 3.3 V in high-frequency POL designs.

What is the recommended PCB layout for thermal management of AON7516?

For optimal thermal performance, the AON7516 requires a minimum 1-in² copper area on the primary side connected to the exposed drain pad via ≥6 thermal vias (0.3 mm diameter, filled or capped). The AON7516's R_θJA of 50 °C/W assumes this layout; reducing copper area or via count increases junction temperature and must be accounted for in reliability calculations.

Is AON7516 suitable for automotive applications requiring AEC-Q101 qualification?

No, the AON7516 is not AEC-Q101 qualified. While it operates over -55 °C to +175 °C junction temperature and is used in automotive ADAS power supplies, formal AEC-Q101 stress testing and certification are not performed for this part number. For AEC-Q101-compliant alternatives, engineers should specify AON7516's automotive-grade equivalents such as AON7516A (if available) or consult AOS's qualified portfolio.

AON7516 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: -

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 20A (Ta), 30A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 4.5mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 2.2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 33 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1229 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 3.1W (Ta), 25W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

AON7516 FAQ

1.How can I place an order for AON7516 through Aetrix?

Please submit a Request for Quotation (RFQ) for AON7516 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 AON7516 reliable?

The price and inventory of AON7516 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON7516 is usually 5 days.

3.What payment methods are accepted for AON7516?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON7516 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AON7516?

AON7516 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AON7516 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 AON7516?

For technical support, including AON7516 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON7516 requirements.

6.How does Aetrix verify that AON7516 is sourced from the original manufacturer or authorized distributors?

All AON7516 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 AON7516 meets industry standards.

7.What is the process for return or replacement of AON7516?

All AON7516 units undergo pre-shipment inspection (PSI). If there is an issue with AON7516, 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 AON7516 part is unused and in its original packaging.

Return procedure for AON7516:

1.Submit a request within 90 days.

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

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