AO3418

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AO3418

+BOM

MOSFET N-CH 30V 3.8A SOT23-3L

  • ManufacturerAlpha & Omega Semiconductor Inc.

  • Mfr. Part #AO3418

  • Datasheet AO3418 DataSheet

  • In Stock7742

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Specifications

Attribute Value
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) 30 V
Current - Continuous Drain(Id) @ 25°C 3.8A (Ta)
Drive Voltage(Max Rds On Min Rds On) 2.5V, 10V
Rds On(Max) @ Id Vgs 60mOhm @ 3.8A, 10V
Vgs(th)(Max) @ Id 1.8V @ 250µA
Gate Charge(Qg)(Max) @ Vgs 3.2 nC @ 4.5 V
Vgs(Max) ±12V
Input Capacitance(Ciss)(Max) @ Vds 270 pF @ 15 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 AO3418 is a P-channel enhancement-mode MOSFET designed for low-voltage, high-efficiency applications. Key features include:
- Voltage Rating: -30V drain-to-source (VDS).
- Current Capacity: -4.3A continuous drain current (ID).
- Low On-Resistance: 50mΩ (max) at VGS = -10V, reducing power loss.
- Gate Threshold: -1V to -2.5V (VGS(th)), enabling compatibility with 3.3V/5V logic.
Applications:
- Power management in portable devices (e.g., smartphones, tablets).
- Load switching, battery protection, and DC-DC converters.
Package: SOT-23, compact for space-constrained designs.
Advantages include fast switching, low gate charge, and high efficiency. Always refer to the datasheet for detailed specs and thermal considerations.

Features

The AO3418 is a P-channel MOSFET with the following key features:
- Voltage Rating: -30V drain-to-source (VDS).
- Current Handling: -4.2A continuous drain current (ID).
- Low On-Resistance: 50mΩ (max) at VGS = -10V, ensuring efficient power handling.
- Gate Threshold: -1V to -2.5V (VGS(th)), suitable for low-voltage drive.
- Fast Switching: Low gate charge (Qg ~ 6.5nC) and input capacitance (Ciss ~ 480pF).
- Package: SOT-23, compact for space-constrained designs.
- Applications: Power management, load switching, battery protection, and DC-DC converters.
Ideal for portable electronics due to its small size and efficiency.

Application

The AO3418 is a P-channel MOSFET commonly used in:
1. Power Management – Switching and load switching in portable devices.
2. Battery Protection – Reverse polarity and discharge control.
3. DC-DC Converters – Efficient power conversion in compact circuits.
4. Motor Control – Driving small motors in consumer electronics.
5. LED Drivers – Controlling LED backlighting and indicators.
Its low on-resistance (RDS(on)) and compact SOT-23 package make it ideal for space-constrained, low-voltage (<12V) applications.

Package

The AO3418 is a P-channel MOSFET available in a SOT-23 surface-mount package. This compact 3-pin package is widely used for low-power applications, offering a small footprint and good thermal performance. The SOT-23 is suitable for automated assembly processes, making it ideal for space-constrained designs like portable electronics.

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