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

Alpha & Omega Semiconductor Inc. AON7764

Name: AON7764
Brand: Alpha & Omega Semiconductor Inc.
SKU: AON7764
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AON7764

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: AON7764.pdf

Description:: MOSFET N-CH 30V 30A/32A 8DFN

Quantity:: RFQ Add To RFQ list

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Inventory:6,219

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Product details

Overview

AON7764 from Alpha & Omega Semiconductor is a 30V, 50A, 3.8mΩ N-channel MOSFET in a 5x6mm DFN package, optimized for high-efficiency DC-DC power conversion in server VRMs and POL converters.

For engineers reviewing the AON7764 datasheet, pinout, applications, or equivalent options, key selection criteria include R_DS(on) at 10V, thermal resistance (R_θJA), gate charge (Q_g), and logic-level gate drive compatibility with standard PWM controllers.

Technical Context

The AON7764 employs trench-gate silicon process technology to achieve low on-resistance and fast switching characteristics. It supports synchronous rectification in buck converters with gate threshold voltage (V_GS(th)) of 1.2–2.2V and total gate charge of 22nC at V_GS = 10V.

Designed for surface-mount assembly, the device features a thermally enhanced DFN5x6-8L package with exposed drain pad. Its 30V V_DSS rating targets 12V input systems, and it meets RoHS and halogen-free requirements per AOS Green Policy.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30V - supports 12V input bus systems with 2.5× voltage margin
R_DS(on) @ V_GS=10V	3.8mΩ - enables <1W conduction loss at 50A in high-current POL stages
I_D (continuous)	50A - rated for sustained current in compact VRM phases without derating
Q_g	22nC - reduces gate driver power loss and enables >1MHz switching
R_θJA	40°C/W - allows 65°C temperature rise at 2.5W dissipation on 1-in² 2oz copper
V_GS(th)	1.2–2.2V - ensures full enhancement with 3.3V or 5V logic-level gate drivers

Pinout & Package

Package: DFN5x6-8L (exposed drain pad, no leads, bottom-side thermal interface).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7	Source	Common source connection for internal parallel die; low-inductance return path
8	Gate	Single gate input terminal; requires <22nC charge for full turn-on
Drain Pad (bottom)	Drain	Thermally and electrically connected drain; must be soldered to PCB ground plane for thermal performance

Key Features

Feature	Design Value
Ultra-low R_DS(on)	3.8mΩ at 10V enables high-efficiency 50A POL stages with minimal heat generation
Logic-level gate drive	V_GS(th) range of 1.2–2.2V ensures reliable turn-on using standard 3.3V microcontroller GPIO or PWM IC outputs
Thermally enhanced DFN	Exposed drain pad and 40°C/W R_θJA allow direct thermal coupling to PCB copper without heatsink
Halogen-free construction	Meets AOS Green Policy: Br/Cl <900ppm each, total Br+Cl <1500ppm - compliant for eco-sensitive end equipment

Applications

Server VRM Phase Legs	High-Density POL Converters
Use Scenario: High-current, multi-phase buck converter supplying CPU/GPU core voltage in rack-mounted servers. IC Role / Device Role / Timing Role: High-side synchronous MOSFET switched at 500kHz–1MHz with precise dead-time control. Use Value: 3.8mΩ R_DS(on) minimizes conduction loss in 40–60A phase legs, improving VRM efficiency by ≥0.8% at full load.	Use Scenario: Compact 12V-to-1V point-of-load regulator on AI accelerator card with strict board space limits. IC Role / Device Role / Timing Role: Low-side synchronous rectifier operating in continuous conduction mode with 3.3V gate drive. Use Value: Logic-level V_GS(th) eliminates need for gate driver IC, reducing BOM count and layout area.
Telecom Rectifier Modules	Industrial Motor Drive Half-Bridges
Use Scenario: Secondary-side synchronous rectification in 48V telecom PSUs delivering up to 100A output. IC Role / Device Role / Timing Role: Low-side switch in isolated forward or LLC secondary synchronous rectifier stage. Use Value: 50A continuous rating and 40°C/W thermal resistance support forced-air-cooled designs without thermal throttling.	Use Scenario: Half-bridge leg in 24V BLDC motor controller for factory automation actuators. IC Role / Device Role / Timing Role: High-side switch controlled via bootstrap gate driver with 10V gate bias. Use Value: 30V V_DSS provides sufficient margin over 24V bus transients, preventing avalanche stress during commutation.

Server VRM Phase Legs

High-Density POL Converters

Use Scenario: High-current, multi-phase buck converter supplying CPU/GPU core voltage in rack-mounted servers.

IC Role / Device Role / Timing Role: High-side synchronous MOSFET switched at 500kHz–1MHz with precise dead-time control.

Use Value: 3.8mΩ R_DS(on) minimizes conduction loss in 40–60A phase legs, improving VRM efficiency by ≥0.8% at full load.

Use Scenario: Compact 12V-to-1V point-of-load regulator on AI accelerator card with strict board space limits.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier operating in continuous conduction mode with 3.3V gate drive.

Use Value: Logic-level V_GS(th) eliminates need for gate driver IC, reducing BOM count and layout area.

Telecom Rectifier Modules

Industrial Motor Drive Half-Bridges

Use Scenario: Secondary-side synchronous rectification in 48V telecom PSUs delivering up to 100A output.

IC Role / Device Role / Timing Role: Low-side switch in isolated forward or LLC secondary synchronous rectifier stage.

Use Value: 50A continuous rating and 40°C/W thermal resistance support forced-air-cooled designs without thermal throttling.

Use Scenario: Half-bridge leg in 24V BLDC motor controller for factory automation actuators.

IC Role / Device Role / Timing Role: High-side switch controlled via bootstrap gate driver with 10V gate bias.

Use Value: 30V V_DSS provides sufficient margin over 24V bus transients, preventing avalanche stress during commutation.

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
IRF7759L2TRPBF	R_DS(on) = 4.2mΩ @ 10V; Q_g = 24nC; same DFN5x6-8L package	Slightly higher conduction loss and gate drive energy; identical footprint	Acceptable alternative where <0.4mΩ R_DS(on) margin is acceptable and gate driver can supply +2nC extra charge
SiR626DP-T1-GE3	R_DS(on) = 3.5mΩ @ 10V; Q_g = 26nC; DFN5x6-8L, halogen-free	Lower R_DS(on) but higher Q_g; same thermal profile and green compliance	Preferred when minimizing conduction loss is critical and gate driver has ≥26nC capability

Compared with IRF7759L2TRPBF and SiR626DP-T1-GE3, the AON7764 offers the best balance of ultra-low R_DS(on), moderate gate charge, and verified halogen-free compliance - making it optimal for space-constrained, high-efficiency 12V-input power stages requiring long-term environmental certification.

Availability

AON7764 is available at Aetrix Electronics and suitable for server VRMs, telecom rectifiers, and industrial motor drives requiring stable component supply, consistent parametric performance, and halogen-free compliance.

Supply support for AON7764 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, telecom, and industrial markets.

The AON7764 belongs to AOS's NextPower™ SF series, engineered specifically for high-frequency, high-current synchronous buck converters where low R_DS(on) and fast switching are essential.

FAQ

What is the maximum continuous drain current rating for AON7764?

The AON7764 is rated for 50A continuous drain current (I_D) at T_C = 25°C with proper PCB thermal management. At 100°C case temperature, the derated current is 32A. This rating assumes use of the exposed drain pad soldered to a minimum 1-in² 2oz copper area per AOS recommended layout guidelines.

Does AON7764 require a gate driver IC in typical POL applications?

The AON7764 does not require an external gate driver IC in most POL applications due to its logic-level gate threshold (1.2–2.2V) and moderate 22nC total gate charge. It can be directly driven by standard 3.3V or 5V PWM controllers such as the TI UCC28911 or MPS MP2451, provided trace inductance and driver output impedance are minimized.

Is AON7764 compliant with halogen-free standards?

Yes, AON7764 is halogen-free per AOS Green Policy: bromine and chlorine content are each below 900ppm, and total halogens (Br + Cl) are below 1500ppm. The device carries no "L" suffix because all DFN5x6-8L packages were converted to green status prior to 2010 and do not require dual numbering.

What is the thermal resistance (R_θJA) of AON7764 under standard JEDEC test conditions?

The AON7764 has a junction-to-ambient thermal resistance (R_θJA) of 40°C/W when mounted on a 1-in² 2oz copper PCB per JEDEC 51-7. This value assumes the exposed drain pad is fully soldered to the copper plane; omitting this connection increases R_θJA to >75°C/W and risks thermal failure at rated current.

Can AON7764 be used in high-side switching configurations with bootstrap gate drive?

Yes, AON7764 is suitable for high-side switching in half-bridge or synchronous buck topologies using bootstrap gate drive. Its 30V V_DSS rating provides adequate margin for 12V input systems with transient spikes, and its 1.2–2.2V V_GS(th) ensures robust turn-on even with bootstrap capacitor droop down to ~6V.

AON7764 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: AlphaMOS

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 30A (Ta), 32A (Tc)

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

Rds On (Max) @ Id, Vgs:: 3.2mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 2.2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 40 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1990 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 4.2W (Ta), 30W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

AON7764 FAQ

1.How can I place an order for AON7764 through Aetrix?

Please submit a Request for Quotation (RFQ) for AON7764 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 AON7764 reliable?

The price and inventory of AON7764 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON7764 is usually 5 days.

3.What payment methods are accepted for AON7764?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON7764 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AON7764?

AON7764 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AON7764 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 AON7764?

For technical support, including AON7764 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON7764 requirements.

6.How does Aetrix verify that AON7764 is sourced from the original manufacturer or authorized distributors?

All AON7764 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 AON7764 meets industry standards.

7.What is the process for return or replacement of AON7764?

All AON7764 units undergo pre-shipment inspection (PSI). If there is an issue with AON7764, 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 AON7764 part is unused and in its original packaging.

Return procedure for AON7764:

1.Submit a request within 90 days.

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

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