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AO3420
+BOMMOSFET N-CH 20V 6A SOT23-3L
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ManufacturerAlpha & Omega Semiconductor Inc.
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Mfr. Part #AO3420
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Datasheet AO3420 DataSheet
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In Stock25206
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Specifications
| Attribute | Value |
| Supplier | Alpha & Omega Semiconductor Inc. |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Not For New Designs |
| FET Type | N-Channel |
| Technology | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 20 V |
| Current - Continuous Drain(Id) @ 25°C | 6A (Ta) |
| Drive Voltage(Max Rds On Min Rds On) | 1.8V, 10V |
| Rds On(Max) @ Id Vgs | 24mOhm @ 6A, 10V |
| Vgs(th)(Max) @ Id | 1V @ 1mA |
| Gate Charge(Qg)(Max) @ Vgs | 8.8 nC @ 4.5 V |
| Vgs(Max) | ±12V |
| Input Capacitance(Ciss)(Max) @ Vds | 630 pF @ 10 V |
| Power Dissipation (Max) | 1.4W (Ta) |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Supplier Device Package | SOT-23-3 |
Overview
Description
The AO3420 is an N-channel MOSFET, meaning it has a majority of electrons as charge carriers, and it is designed to handle relatively high levels of power with low on-resistance. This makes it efficient for power management applications such as DC-DC converters, load switches, and battery-powered devices.
Key specifications for the AO3420 often include a low threshold voltage, which enables it to operate at lower gate drive levels, and a fast switching speed, which is advantageous for high-frequency applications. Its compact SOT-23 package makes it suitable for space-constrained applications in various consumer electronics.
Overall, the AO3420 is valued for its balance of performance, efficiency, and size, making it a versatile choice for engineers working on power-sensitive projects.
Equivalent
1. 2N7002 - N-channel MOSFET with similar specifications.
2. BS170 - Another N-channel MOSFET with comparable features.
3. IRLML2502 - Low voltage N-channel MOSFET.
4. FDV301N - Small signal N-channel MOSFET.
Ensure to verify the specific parameters and characteristics to confirm suitability for your application.
Features
1. Voltage and Current Ratings: It typically supports a drain-source voltage (V_DS) of 30V and can handle a continuous drain current (I_D) of around 5.8A, making it suitable for low to moderate power applications.
2. R_DS(on): The on-resistance, a measure of the efficiency and heat generation when the MOSFET is in the on state, is relatively low, usually around 30 milliohms. This feature helps in reducing power loss and improving efficiency.
3. Package Type: It is commonly available in a small SOT-23 package, which is ideal for space-constrained designs.
4. Gate Charge: It exhibits a low gate charge, which allows for faster switching speeds and reduced gate drive power requirements.
5. Applications: The AO3420 is often used in power management, load switching, and low-side switching applications in consumer electronics and other devices.
These features make the AO3420 a versatile component in the design of efficient electronic circuits.
Pinout
1. Gate (G): This pin is used to control the MOSFET. By applying a voltage to the gate, the user can turn the device on or off, thus controlling the current flow between the drain and source.
2. Drain (D): This is the pin through which the current enters the MOSFET when it is in the "on" state. It is connected to the load that the MOSFET is intended to drive.
3. Source (S): This pin is the exit point for the current when the MOSFET is conducting. It is typically connected to the ground or the negative side of the power supply.
These pins allow the AO3420 to perform its basic function as a switch within electronic circuits, providing efficient control over power delivery to various components.
Manufacturer
Application
1. Power Management: Used in DC-DC converters, voltage regulation, and battery management systems.
2. Load Switching: Ideal for switching loads in consumer electronics, automotive systems, and industrial equipment.
3. Signal Amplification: Employed in circuits where signal amplification is necessary, such as audio amplifiers.
4. Motor Control: Utilized in controlling small motors and actuators.
5. LED Drivers: Used in driving LED circuits due to its capability to handle moderate power levels efficiently.
These applications leverage the MOSFET's efficiency, low on-resistance, and fast switching characteristics.