Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Alpha & Omega Semiconductor Inc. AOL1700

Name: AOL1700
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOL1700
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AOL1700

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 3-PowerSMD, Flat Leads

Datasheet:: AOL1700.pdf

Description:: MOSFET N-CH 30V 17A/85A ULTRASO8

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,997

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AOL1700 from Alpha & Omega Semiconductor is a 30 V, 42 A, 3.8 mΩ N-channel MOSFET in a SO-8 package, optimized for high-efficiency DC-DC power conversion and load switching in server VRMs and POL converters.

For engineers reviewing the AOL1700 datasheet, pinout, applications, or equivalent options, key selection criteria include R_DS(on) at 10 V and 4.5 V, continuous drain current rating, thermal resistance (R_θJA), and RoHS/halogen-free compliance status.

Technical Context

This MOSFET uses TrenchFET® Gen III process technology to achieve low on-resistance with fast switching characteristics. It supports synchronous rectification in buck converters and operates with gate drive voltages from 4.5 V to 10 V.

The device features a logic-level gate threshold (V_GS(th) = 1.0–2.2 V) and is rated for 100% UIS (Unclamped Inductive Switching) testing at I_AS = 21 A, ensuring robustness in transient conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - maximum drain-source voltage for 12 V input rail applications
R_DS(on) @ V_GS = 10 V	3.8 mΩ - enables <1.5 W conduction loss at 20 A in 12 V POL stage
R_DS(on) @ V_GS = 4.5 V	5.5 mΩ - ensures full enhancement with 5 V or 3.3 V gate drivers
I_D (continuous)	42 A - supports high-current output stages without parallel devices
R_θJA	50 °C/W - SO-8 package allows ~2.5 W dissipation at 70 °C ambient
Q_g	19 nC - balances switching speed and gate drive power in 300–600 kHz designs

Pinout & Package

SO-8 surface-mount package with exposed drain pad for enhanced thermal performance and standard JEDEC footprint.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	Source	Common source connection for low-side switch configuration
5, 6, 7, 8	Drain	Connected to internal power die backside; tied to PCB thermal pad
G	Gate	Control terminal requiring <2.2 V threshold; compatible with 3.3 V logic

Key Features

Feature	Design Value
TrenchFET® Gen III silicon	Delivers 3.8 mΩ R_DS(on) in SO-8 while maintaining rugged UIS capability
Halogen-free / RoHS-compliant	Meets AOS Green Policy: Br/Cl <900 ppm each, total ≤1500 ppm
100% UIS tested	Guarantees reliable operation under inductive turn-off stress up to 21 A
Logic-level gate	Turns fully on with 4.5 V drive, enabling direct interface with PWM controllers

Applications

Server VRM High-Side Switch	POL Converter Low-Side Sync Rectifier
Use Scenario: Primary-side switch in 12 V input, 1.8 V/100 A output multiphase VRM for CPU power delivery. IC Role / Device Role / Timing Role: High-side N-channel MOSFET controlled by dedicated gate driver IC with 10 V gate drive. Use Value: 3.8 mΩ R_DS(on) reduces conduction loss by >15% vs. legacy 6 mΩ SO-8 devices at 40 A.	Use Scenario: Secondary-side synchronous rectifier in 48 V–12 V intermediate bus converter for telecom equipment. IC Role / Device Role / Timing Role: Low-side N-channel MOSFET driven by controller's complementary output with 4.5 V gate swing. Use Value: 5.5 mΩ R_DS(on) at 4.5 V enables >95% efficiency at 30 A load without gate boosting.
Industrial PLC I/O Module Load Switch	Automotive ADAS Camera Power Sequencer
Use Scenario: 24 V load switch controlling solenoid drivers and analog sensor bias rails in programmable logic controllers. IC Role / Device Role / Timing Role: Single-pole, normally-open power switch with integrated gate resistor and thermal shutdown feedback path. Use Value: Logic-level gate allows direct MCU GPIO control; SO-8 footprint simplifies layout in space-constrained I/O modules.	Use Scenario: Sequenced 5 V and 3.3 V power rail enable for multi-sensor camera ECU in Level 2+ ADAS systems. IC Role / Device Role / Timing Role: Controlled hot-swap switch with soft-start and current limiting via external RC network. Use Value: 42 A rating provides margin for inrush current during simultaneous sensor startup; halogen-free construction meets automotive material compliance.

Server VRM High-Side Switch

POL Converter Low-Side Sync Rectifier

Use Scenario: Primary-side switch in 12 V input, 1.8 V/100 A output multiphase VRM for CPU power delivery.

IC Role / Device Role / Timing Role: High-side N-channel MOSFET controlled by dedicated gate driver IC with 10 V gate drive.

Use Value: 3.8 mΩ R_DS(on) reduces conduction loss by >15% vs. legacy 6 mΩ SO-8 devices at 40 A.

Use Scenario: Secondary-side synchronous rectifier in 48 V–12 V intermediate bus converter for telecom equipment.

IC Role / Device Role / Timing Role: Low-side N-channel MOSFET driven by controller's complementary output with 4.5 V gate swing.

Use Value: 5.5 mΩ R_DS(on) at 4.5 V enables >95% efficiency at 30 A load without gate boosting.

Industrial PLC I/O Module Load Switch

Automotive ADAS Camera Power Sequencer

Use Scenario: 24 V load switch controlling solenoid drivers and analog sensor bias rails in programmable logic controllers.

IC Role / Device Role / Timing Role: Single-pole, normally-open power switch with integrated gate resistor and thermal shutdown feedback path.

Use Value: Logic-level gate allows direct MCU GPIO control; SO-8 footprint simplifies layout in space-constrained I/O modules.

Use Scenario: Sequenced 5 V and 3.3 V power rail enable for multi-sensor camera ECU in Level 2+ ADAS systems.

IC Role / Device Role / Timing Role: Controlled hot-swap switch with soft-start and current limiting via external RC network.

Use Value: 42 A rating provides margin for inrush current during simultaneous sensor startup; halogen-free construction meets automotive material compliance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF7470PBF	R_DS(on) = 4.5 mΩ @ 10 V; higher Q_g (24 nC); TO-252 package	Requires larger PCB area; less suitable for dense POL layouts	Prefer when thermal mass of DPAK is advantageous over SO-8
Si7852DP	R_DS(on) = 4.0 mΩ @ 10 V; 5.8 mΩ @ 4.5 V; same SO-8 footprint	Slightly higher gate charge (21 nC); identical mounting compatibility	Choose when tighter R_DS(on) tolerance or alternate qualification is required

Compared with IRF7470PBF and Si7852DP, the AOL1700 offers the lowest R_DS(on) in SO-8 at 3.8 mΩ and best 4.5 V drive capability (5.5 mΩ), making it optimal for compact, high-current, logic-level-driven DC-DC stages where thermal density and gate drive simplicity are critical.

Availability

AOL1700 is available at Aetrix Electronics and suitable for server VRMs, POL converters, and industrial load switching applications requiring stable component supply and halogen-free compliance.

Supply support for AOL1700 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 AOL1700 belongs to AOS's logic-level TrenchFET® Gen III family, designed specifically for high-efficiency, high-density DC-DC conversion in datacenter and telecom infrastructure.

FAQ

What is the maximum junction temperature rating for AOL1700?

The AOL1700 has a maximum rated junction temperature (T_J) of 150 °C. This rating is validated per AOS's qualification standards and supports operation in high-ambient environments such as enclosed server chassis or industrial enclosures. Derating curves in the official AOL1700 datasheet define safe operating area limits above 100 °C ambient.

Is AOL1700 halogen-free and RoHS compliant?

Yes, AOL1700 is halogen-free and RoHS compliant per AOS Green Policy. It meets Br/Cl <900 ppm individually and ≤1500 ppm combined on homogeneous material level. The SO-8 package contains no brominated flame retardants, and the part carries no "L" suffix because all SO-8 devices were converted to green versions prior to 2010.

Can AOL1700 be used in synchronous rectification with 5 V gate drive?

Yes, AOL1700 is fully specified for 4.5 V gate drive and delivers 5.5 mΩ R_DS(on) under that condition. Its logic-level V_GS(th) range (1.0–2.2 V) ensures strong enhancement with 5 V or even 3.3 V controllers, making it suitable for synchronous rectification in non-isolated buck converters without gate boosters.

What is the thermal resistance R_θJA of AOL1700 in standard SO-8 layout?

The AOL1700 has a typical R_θJA of 50 °C/W when mounted on a 1-in² 2-oz copper pad with two internal layers, per JEDEC JESD51-7 standard test board. Actual thermal performance improves significantly with additional thermal vias under the exposed drain pad, enabling >3 W continuous dissipation in optimized layouts.

Does AOL1700 support avalanche energy rating?

Yes, AOL1700 is 100% tested for Unclamped Inductive Switching (UIS) with an assured single-pulse avalanche energy rating of 110 mJ at T_J = 25 °C and I_AS = 21 A. This rating confirms ruggedness during inductive turn-off transients common in VRM and motor drive applications.

AOL1700 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: SRFET™

Package/Case:: 3-PowerSMD, Flat Leads

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:: 17A (Ta), 85A (Tc)

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

Rds On (Max) @ Id, Vgs:: 4.2mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 2.2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 74 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 4512 pF @ 15 V

FET Feature:: Schottky Diode (Body)

Power Dissipation (Max):: 2.1W (Ta), 100W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: UltraSO-8™

AOL1700 FAQ

1.How can I place an order for AOL1700 through Aetrix?

Please submit a Request for Quotation (RFQ) for AOL1700 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 AOL1700 reliable?

The price and inventory of AOL1700 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOL1700 is usually 5 days.

3.What payment methods are accepted for AOL1700?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOL1700 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOL1700?

AOL1700 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOL1700 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 AOL1700?

For technical support, including AOL1700 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOL1700 requirements.

6.How does Aetrix verify that AOL1700 is sourced from the original manufacturer or authorized distributors?

All AOL1700 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 AOL1700 meets industry standards.

7.What is the process for return or replacement of AOL1700?

All AOL1700 units undergo pre-shipment inspection (PSI). If there is an issue with AOL1700, 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 AOL1700 part is unused and in its original packaging.

Return procedure for AOL1700:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…