Alpha & Omega Semiconductor Inc. AO7413

Overview

AO7413 from Alpha & Omega Semiconductor is a 20V P-Channel MOSFET using advanced trench technology, with R_DS(ON) < 113 mΩ at V_GS = −10 V, −1.4 A continuous drain current, and 2.5 V logic-level gate drive capability. It serves as a low-voltage load switch in portable power management circuits.

For engineers reviewing the AO7413 datasheet, pinout, applications, or equivalent options, key selection criteria include its SC-70 package footprint, −20 V V_DS rating, HBM Class 2 ESD protection, low gate charge (Q_g = 4.5 nC), and guaranteed operation down to V_GS = −2.5 V.

Technical Context

The AO7413 is a single P-Channel enhancement-mode MOSFET fabricated with trench-gate process, enabling low on-resistance and fast switching. Its gate threshold voltage range (−0.5 V to −1.2 V) ensures reliable turn-on with standard logic-level signals, and its body diode exhibits t_rr = 6.1 ns and Q_rr = 1.4 nC under defined test conditions.

Thermal design relies on R_θJA = 425 °C/W (1 in² FR-4, 2 oz Cu), with maximum junction temperature of 150 °C. The device supports pulsed drain currents up to −13 A and features integrated HBM Class 2 ESD protection per JESD22-A114.

Key Specifications

Pinout & Package

AO7413 is housed in an SC-70 (SOT-323) plastic surface-mount package with three terminals: Source, Gate, Drain. The package measures 2.2 mm × 2.2 mm × 0.95 mm and is optimized for space-constrained portable applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-Channel MOSFET load switch applications.

Compared with Si2301DDS and DMN2013LFG-7, the AO7413 delivers the best balance of low gate charge, verified 2.5 V turn-on, and industry-standard SC-70 compatibility-making it optimal for drop-in upgrades in existing portable power designs without PCB changes.

Availability

AO7413 is available at Aetrix Electronics and suitable for portable power management, USB port protection, and IoT sensor node power gating requiring stable component supply and long-term lifecycle assurance.

Supply support for AO7413 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 ICs for computing, consumer, and industrial markets.

The AO7413 belongs to AOS's logic-level P-Channel MOSFET product line, engineered specifically for compact, battery-powered load switching applications demanding low gate drive voltage and minimal board space.

FAQ

What is the maximum continuous drain current rating for the AO7413?

The AO7413 has a maximum continuous drain current (I_D) of −1.4 A at T_A = 25 °C with no heatsink. At elevated ambient temperatures (e.g., T_A = 70 °C), this derates to −1.2 A due to thermal limitations. The device supports pulsed drain currents up to −13 A under specified duty cycle and pulse-width conditions. These ratings assume proper PCB copper area and thermal management per the datasheet's R_θJA definition.

Does the AO7413 support 2.5 V logic-level gate drive?

Yes, the AO7413 is explicitly characterized for operation at V_GS = −2.5 V, with R_DS(ON) guaranteed at < 180 mΩ under that condition. Its gate threshold voltage range (−0.5 V to −1.2 V) provides sufficient margin for reliable turn-on with 2.5 V microcontroller outputs. This eliminates the need for external gate drivers in most portable power switch applications.

What package type does the AO7413 use, and what are its dimensions?

The AO7413 uses the SC-70 (also known as SOT-323) surface-mount package. Its outline measures 2.2 mm × 2.2 mm × 0.95 mm with a standard 3-terminal configuration (Source, Gate, Drain). The package is RoHS-compliant and designed for reflow soldering per JEDEC J-STD-020. Pin pitch is 0.65 mm, and the device is marked "A3" on the top surface.

Is the AO7413 suitable for reverse polarity protection circuits?

Yes, the AO7413 can be used in reverse polarity protection configurations when placed in the high-side position with source tied to input and drain to load. Its −20 V V_DS rating and low R_DS(ON) minimize voltage drop and power loss. The body diode orientation allows forward conduction only when polarity is correct, blocking reverse current. No additional components are required beyond basic gate pull-up.

What is the thermal resistance (R_θJA) of the AO7413 under standard test conditions?

The AO7413 has a maximum junction-to-ambient thermal resistance (R_θJA) of 425 °C/W when mounted on a 1 in² FR-4 board with 2 oz copper in still air at T_A = 25 °C. This value assumes the recommended pad layout per the datasheet. In real-world layouts with reduced copper area or airflow, R_θJA will increase-designers should verify junction temperature using measured or simulated thermal impedance.