AO4447A

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AO4447A

+BOM

MOSFET P-CH 30V 17A 8SOIC

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Not For New Designs
FET Type P-Channel
Technology MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss) 30 V
Current - Continuous Drain(Id) @ 25°C 17A (Ta)
Drive Voltage(Max Rds On Min Rds On) 4V, 10V
Rds On(Max) @ Id Vgs 7mOhm @ 17A, 10V
Vgs(th)(Max) @ Id 1.6V @ 250µA
Gate Charge(Qg)(Max) @ Vgs 105 nC @ 10 V
Vgs(Max) ±20V
Input Capacitance(Ciss)(Max) @ Vds 5500 pF @ 15 V
Power Dissipation (Max) 3.1W (Ta)
Operating Temperature -55°C ~ 150°C (TJ)
Mounting Type Surface Mount
Supplier Device Package 8-SOIC

Overview

Description

The AO4447A is a high-performance N-channel MOSFET designed for power management applications. It features a low on-resistance (RDS(on)) and high current-handling capability, making it ideal for load switching, DC-DC converters, and battery protection circuits. Key specifications include a 30V drain-source voltage (VDS), a continuous drain current (ID) of up to 12A, and a compact DFN3x3 or SO-8 package for efficient space utilization. Its low gate charge (Qg) and fast switching characteristics enhance efficiency in high-frequency applications. The AO4447A is commonly used in consumer electronics, power supplies, and portable devices due to its reliability and thermal performance. Always refer to the datasheet for detailed electrical characteristics and application guidelines.

Equivalent

The AO4447A is a 30V P-channel MOSFET. Equivalent alternatives include:
- IRLML6401 (International Rectifier)
- Si2301DS (Vishay)
- DMG2305UX (Diodes Inc.)
- FDC5612P (Fairchild/ON Semi)
These offer similar specs (VDS: -20V to -30V, ID: -4A to -5A, low RDS(on)). Verify pinout and parameters for exact compatibility.

Features

The AO4447A is a high-performance N-channel MOSFET with the following key features:
- Voltage Rating: 30V
- Current Rating: 11A (continuous)
- Low On-Resistance (RDS(on)): 4.5mΩ (max) at VGS=10V
- Fast Switching: Optimized for high-efficiency power applications
- Low Gate Charge (Qg): Enhances switching speed and reduces losses
- Avalanche Energy Rated: Improves reliability in rugged conditions
- Package: SO-8 (compact and widely compatible)
- Logic-Level Gate Drive: Compatible with 4.5V drive (partially enhanced)
Ideal for DC-DC converters, motor control, and power management in portable devices.

Pinout

The AO4447A is a dual N-channel MOSFET in an SO-8 package with 8 pins.
Pin Functions:
1. Pins 1, 2, 3 (Drain1, Drain2, Drain3): Connected to the drain of the first MOSFET.
2. Pin 4 (Gate1): Gate control for the first MOSFET.
3. Pin 5 (Gate2): Gate control for the second MOSFET.
4. Pins 6, 7, 8 (Source1, Source2, Source3): Connected to the source of the second MOSFET.
Key Features:
- 30V drain-source voltage (VDS)
- Low on-resistance (RDS(on))
- High current handling (up to ~10A per channel)
Commonly used in power switching applications like DC-DC converters and motor drivers.

Manufacturer

The AO4447A is a power MOSFET manufactured by Alpha & Omega Semiconductor (AOS), a U.S.-based semiconductor company specializing in power management solutions. Founded in 2000 and headquartered in Silicon Valley, AOS designs and produces high-performance power semiconductors for applications like computing, consumer electronics, and industrial systems. The AO4447A is commonly used in power switching and voltage regulation due to its efficiency and reliability. AOS is known for its innovation in power MOSFETs, ICs, and other discrete components.

Application

The AO4447A is a P-channel MOSFET commonly used in:
1. Power Management – Voltage regulation and power switching in DC-DC converters.
2. Battery Protection – Reverse polarity and overcurrent protection in portable devices.
3. Load Switching – Controlling power to peripherals in smartphones, tablets, and IoT devices.
4. Motor Control – Driving small motors in consumer electronics.
5. Automotive Systems – Power distribution in infotainment and lighting circuits.
Its low on-resistance (RDS(on)) and compact packaging (e.g., DFN, SO-8) make it ideal for space-constrained, high-efficiency applications.

Package

The AO4447A is typically available in a DFN5x6 (5-pin Dual Flat No-Lead) package, measuring 5mm x 6mm. This compact, surface-mount package is designed for efficient power dissipation and space-saving PCB layouts, commonly used in power management applications. Check the datasheet for exact dimensions and specifications.

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