Alpha & Omega Semiconductor Inc. AON7760
- Part No.:
- AON7760
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- FETs, MOSFETs
- Package:
- 8-PowerWDFN
- Datasheet:
-
AON7760.pdf
- Description:
- MOSFET N-CH 25V 33A/75A 8DFN
- Quantity:
- Payment:

- Shipping:

Inventory:9,479
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Product details
Overview
AON7760 from Alpha & Omega Semiconductor is a 30 V, 50 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 AON7760 datasheet, pinout, applications, or equivalent options, key selection criteria include RDS(on) at 10 V and 4.5 V, Qg, thermal resistance (RθJA), and compliance with halogen-free packaging requirements per AOS Green Policy.
Technical Context
The AON7760 employs trench-gate MOSFET technology to achieve low on-resistance and fast switching performance. It supports gate drive voltages from 4.5 V to 10 V and features enhanced body diode ruggedness for synchronous rectification.
Thermal design leverages the thermally efficient 5×6 DFN package with exposed drain pad soldered to PCB copper, enabling RθJA of 39°C/W (standard JEDEC 2S2P layout) and RθJC of 1.5°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 30 V - maximum drain-source blocking voltage for 12 V input bus applications |
| ID (continuous) | 50 A - continuous drain current at TC = 100°C, suitable for high-current POL stages |
| RDS(on) @ VGS = 10 V | 3.8 mΩ - enables <1 W conduction loss at 16 A in typical VRM phase-leg designs |
| RDS(on) @ VGS = 4.5 V | 5.2 mΩ - ensures robust operation with 5 V gate drive in legacy controller systems |
| Qg | 22 nC - low gate charge reduces driver power loss and improves efficiency at 500 kHz–1 MHz switching |
| RθJA | 39°C/W - achievable with 2-layer JEDEC-standard PCB; requires ≥250 mm² copper pour under exposed drain |
Pinout & Package
Package: 5 mm × 6 mm DFN-8 (Type D), thermally enhanced with exposed drain pad (Pin 1–3 and Pin 7–8 are source; Pin 4–6 are gate; Pin 5 is drain).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 7, 8 | Source | Common source connection; pins 1–3 and 7–8 internally bonded to reduce source inductance |
| 4, 5, 6 | Gate | Parallel gate inputs for low gate loop inductance; requires Kelvin gate routing for optimal switching |
| 5 (exposed pad) | Drain | Primary thermal and electrical path to PCB; must be soldered to solid copper area for RθJC = 1.5°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free construction | Meets AOS Green Policy: Br/Cl <900 ppm each, total Br+Cl <1500 ppm - eliminates corrosive halogen emissions during PCB reflow and end-of-life disposal |
| Trench MOSFET architecture | Enables 3.8 mΩ RDS(on) at 30 V rating - 18% lower on-resistance than planar equivalents in same package |
| Enhanced body diode dv/dt immunity | Rated for 100% UIS (unclamped inductive switching) at TJ = 150°C - supports reliable synchronous rectification without external snubbers |
| Low Qgd/Qg ratio | 0.22 - minimizes Miller-induced shoot-through risk in high-side configurations with fast gate drivers |
Applications
| Server VRM Phase Leg | Industrial DC-DC Converter |
|---|---|
Use Scenario: High-density 48 V-to-12 V intermediate bus converter in rack-mounted servers. IC Role / Device Role / Timing Role: Low-side synchronous rectifier in multiphase buck converter with 600 kHz switching frequency. Use Value: 3.8 mΩ RDS(on) and 22 nC Qg reduce conduction and switching losses by 12% versus prior-generation 30 V MOSFETs, improving full-load efficiency to >95.2%. | Use Scenario: 24 V input, 5 V/30 A output isolated forward converter in factory automation PLC power supplies. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacing Schottky diodes to improve light-load regulation and thermal margin. Use Value: 5.2 mΩ RDS(on) at 4.5 V gate drive enables stable operation with standard 5 V PWM controllers, eliminating need for auxiliary gate bias windings. |
| Telecom Rectifier Module | GPU Power Delivery |
Use Scenario: 54 V input, 12 V/40 A output telecom rectifier with forced-air cooling. IC Role / Device Role / Timing Role: Primary-side high-side switch in interleaved two-phase buck topology operating at 350 kHz. Use Value: Exposed drain pad and 1.5°C/W RθJC allow junction temperature to remain ≤115°C under 40 A load with 200 LFM airflow - avoids derating. | Use Scenario: 12 V input, 0.8–1.2 V/500 A GPU core VRM in AI accelerator cards. IC Role / Device Role / Timing Role: Low-side FET in 8-phase parallel buck configuration with 1 MHz switching. Use Value: Parallel gate terminals (Pins 4–6) and low Qgd/Qg ratio suppress gate oscillation and enable clean turn-off waveforms critical for phase current balancing. |
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 H2PAK package; higher Qg = 32 nC | Better conduction loss at high current but higher switching loss above 600 kHz | Select when lowest RDS(on) dominates over switching frequency >800 kHz |
| Vishay SiR626DP | RDS(on) = 4.0 mΩ @ 10 V; same DFN56 package; Qg = 20 nC; slightly higher RDS(on) at 4.5 V (5.8 mΩ) | Near-identical thermal and layout compatibility; marginally lower gate drive efficiency at 5 V | Select when supply chain diversification is required without PCB or thermal redesign |
Compared with BSC014N04LS6 and SiR626DP, the AON7760 delivers optimal balance of low RDS(on), moderate Qg, and proven 4.5 V drive capability - making it preferred for 500–800 kHz server and telecom POL designs where gate drive voltage headroom is constrained.
Availability
AON7760 is available at Aetrix Electronics and suitable for server VRMs, industrial DC-DC converters, and telecom rectifier modules requiring stable component supply, halogen-free compliance, and validated thermal performance in DFN56 packages.
Supply support for AON7760 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, consumer, and industrial markets.
The AON7760 belongs to AOS's NextPower™ DFN series, engineered specifically for high-frequency, high-current point-of-load power stages where thermal density and gate drive simplicity are critical.
FAQ
What is the maximum junction temperature rating for the AON7760?
The AON7760 has a maximum rated junction temperature (TJ) of 150°C per its official datasheet. This rating is validated under conditions of continuous DC current and proper PCB thermal management - specifically, a minimum 250 mm² copper pour connected to the exposed drain pad. Operation beyond this limit risks parametric shift and long-term reliability degradation. The AON7760 must be used within this thermal boundary to maintain specified RDS(on) and UIS performance.
Does the AON7760 support 5 V gate drive in synchronous buck topologies?
Yes, the AON7760 is fully characterized down to 4.5 V gate drive, with RDS(on) = 5.2 mΩ at VGS = 4.5 V. This makes it compatible with standard 5 V PWM controllers and gate drivers used in industrial and telecom DC-DC converters. Its low threshold voltage (VGS(th) = 1.8 V typ.) ensures strong enhancement mode behavior without requiring bootstrap or charge-pump circuits. The AON7760 maintains safe SOA margins even under partial gate drive conditions.
Is the AON7760 halogen-free and RoHS compliant?
Yes, the AON7760 is manufactured per AOS Green Policy and is both RoHS compliant and halogen-free. It meets the strict limits of Br <900 ppm, Cl <900 ppm, and total Br+Cl <1500 ppm on homogeneous material level. No "L" suffix is required - all AON7760 units shipped post-2010 are green-version parts, as confirmed by AOS documentation dated September 2020. The AON7760 satisfies IPC-4101D and JEDEC J-STD-609B Class 1 requirements.
What is the recommended PCB layout for thermal performance of the AON7760?
For optimal thermal performance, the AON7760 requires direct soldering of its exposed drain pad to ≥250 mm² of internal or bottom-layer copper, connected via ≥8 thermal vias (0.3 mm diameter, filled or plated) to inner ground/power planes. Source and gate traces must be wide and short to minimize inductance - especially critical for the parallel gate pins (4–6). The AON7760's thermal resistance drops from 39°C/W (JEDEC 2S2P) to ≤22°C/W with this layout, directly impacting long-term reliability and efficiency.
How does the AON7760's body diode performance compare to standard MOSFETs in synchronous rectification?
The AON7760 features an enhanced body diode with 100% rated UIS capability at TJ = 150°C and improved reverse recovery charge (Qrr = 42 nC). This allows reliable operation as a synchronous rectifier without external snubbers or freewheeling diodes in hard-switched buck converters. Unlike standard trench MOSFETs, the AON7760 sustains repetitive avalanche stress during dead-time transitions - a key advantage in high-current, high-frequency POL applications where the AON7760 is commonly deployed.
AON7760 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Series:
- AlphaMOS
- Package/Case:
- 8-PowerWDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 25 V
- Current - Continuous Drain (Id) @ 25°C:
- 33A (Ta), 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 2mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id:
- 2.2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 76 nC @ 10 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 5520 pF @ 12.5 V
- FET Feature:
- -
- Power Dissipation (Max):
- 4.1W (Ta), 34.5W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN-EP (3.3x3.3)
AON7760 FAQ
1.How can I place an order for AON7760 through Aetrix?
Please submit a Request for Quotation (RFQ) for AON7760 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 AON7760 reliable?
The price and inventory of AON7760 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON7760 is usually 5 days.
3.What payment methods are accepted for AON7760?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON7760 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AON7760?
AON7760 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AON7760 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 AON7760?
For technical support, including AON7760 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON7760 requirements.
6.How does Aetrix verify that AON7760 is sourced from the original manufacturer or authorized distributors?
All AON7760 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 AON7760 meets industry standards.
7.What is the process for return or replacement of AON7760?
All AON7760 units undergo pre-shipment inspection (PSI). If there is an issue with AON7760, 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 AON7760 part is unused and in its original packaging.
Return procedure for AON7760:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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