AO3407 P-Channel 30V MOSFET SOT-23

AO3407 P-Channel 30V MOSFET in the small SOT-23 package is an ideal switching solution for power management circuits where space is at a premium. Engineers frequently select this MOSFET for its excellent performance characteristics, specifically its low on-resistance (R_DS(ON)), which minimizes power loss and improves overall circuit efficiency. Designed for load switching and pulsed applications, the P-Channel configuration simplifies high-side switching in 12V and 24V systems. You can confidently integrate the AO3407 into portable devices, battery management systems, and DC/DC converters to achieve reliable and highly efficient power control.

Key Features:

• Low On-Resistance: Minimizes conduction losses, making the device highly efficient in switching applications.
• Compact SOT-23 Package: The tiny footprint allows for high-density circuit board layouts, perfect for miniaturized electronics.
• P-Channel Enhancement Mode: Simplifies high-side switching designs, requiring only a low voltage to the gate to turn the load off.
• Wide Voltage Compatibility: Handles a Drain-Source voltage (V_DS) of -30V, making it suitable for standard 12V and 24V automotive or battery systems.
• Fast Switching Speed: Optimized for rapid switching, reducing dynamic power consumption in pulsed applications.

Technical Specifications:

• MOSFET Type: P-Channel Enhancement Mode
• Drain-Source Voltage (V_DS): -30 V
• Gate-Source Voltage (V_GS): ±20 V
• Continuous Drain Current (I_D): -4.0 A
• Drain-Source On-Resistance (R_DS(ON)): ≤ 55 mΩ @ V_GS = -10V
• Power Dissipation (P_D): 1.4 W

Mechanical Specifications:

• Package Type: SOT-23 (Small Outline Transistor)
• Mounting Style: Surface Mount Device (SMD/SMT)
• Operating Temperature: -55°C to +150°C

Dimensions:

• Body Length: ≈ 2.9 mm
• Body Width: ≈ 1.3 mm
• Height: ≈ 1.0 mm
• Weight: < 0.01 g (Extremely lightweight)

Pinout and Wiring:

• Pin 1 (Gate – G): Controls the conductivity between the Drain and Source. Apply a negative voltage relative to the Source to turn the MOSFET ON.
• Pin 2 (Source – S): The positive power terminal for the load circuit. Connect this pin to the positive supply voltage.
• Pin 3 (Drain – D): The negative power terminal for the load circuit. Connect this pin between the load and the ground/negative line.
• Basic Operation: To turn the load ON, drive the Gate pin low (more negative than the Source). To turn the load OFF, drive the Gate pin high (close to the Source voltage).

Datasheet Reference:

• Download AO3407 P-Channel MOSFET Datasheet

Commonly Used in:

• Battery-Powered Devices: Serving as the main power switch to conserve battery life.
• Mobile Phones and Tablets: Used in DC/DC power blocks for efficient voltage regulation.
• Automotive Electronics: Controlling various high-side loads in 12V systems.

Applications:

• Load Switching: Efficiently turning power on and off to peripheral components.
• Battery Management Systems (BMS): Protecting cells by isolating the battery from the charging or discharging path.
• Power Supply Control: Regulating voltage and current in various power supply stages and converters.

Equivalent Models:

• IRF9328: A high-performance P-Channel MOSFET often used in similar power switching roles.
• Si2301DS: Another popular P-Channel device in the SOT-23 package with comparable voltage and current ratings.
• AO3400 (N-Channel): The N-Channel complement, often used for low-side switching applications.

Package Includes:

• 1 x AO3407 P-Channel 30V MOSFET SOT-23