AO3434LS

Description：MOSFET N-CH 30V 3.5A SOT23-3
Series：-
Mfr：Alpha & Omega Semiconductor Inc.
Package：Tape & Reel (TR)

SKU:f63ce4e85e9a Category: Single FETs, MOSFETs Brand: Alpha & Omega Semiconductor Inc.

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Product introduction

Product Detailed Parameters

Description：MOSFET N-CH 30V 3.5A SOT23-3
Series：-
Mfr：Alpha & Omega Semiconductor Inc.
Package：Tape & Reel (TR)
FET Type：N-Channel
Technology：MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)：30 V
Current - Continuous Drain (Id) @ 25°C：3.5A (Ta)
Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
Rds On (Max) @ Id, Vgs：52mOhm @ 4.2A, 10V
Vgs(th) (Max) @ Id：1.8V @ 250µA
Gate Charge (Qg) (Max) @ Vgs：7.2 nC @ 10 V
Vgs (Max)：±20V
Input Capacitance (Ciss) (Max) @ Vds：340 pF @ 15 V
FET Feature：-
Power Dissipation (Max)：1W (Ta)
Operating Temperature：-55°C ~ 150°C (TJ)
Grade：-
Qualification：-
Mounting Type：Surface Mount
Supplier Device Package：SOT-23-3
Package / Case：3-SMD, SOT-23-3 Variant

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AO3434LS

Overview

The AO3434LS is an N-channel Power MOSFET manufactured by Alpha & Omega Semiconductor Inc. It features a drain-source voltage (Vdss) of 30V and a continuous drain current (Id) of 3.5A at 25°C. The device utilizes advanced trench MOSFET technology to achieve low on-resistance, specified as 52mΩ at Vgs=10V and Id=4.2A. It is housed in a SOT-23-3L surface-mount package with a maximum power dissipation of 83W at case temperature. The component operates within a junction temperature range of -55°C to 150°C.

Feature Summary

Advanced trench MOSFET technology for low on-resistance
Surface-mount SOT-23-3L packaging
High thermal performance capability

Applications

Low voltage DC-to-DC converters
Power management circuits
Load switches

Procurement Notes

Verify the specific suffix LS against the manufacturer's official datasheet to confirm pinout and electrical tolerances match your design requirements. Ensure the ordering information corresponds to the correct tape-and-reel or tube quantity defined in the latest documentation. Cross-reference the RoHS status and environmental compliance data provided in the official product specification before finalizing procurement.

Selection Notes

Select this component when a 30V N-channel MOSFET with 3.5A current capacity is required in a compact SOT-23-3L footprint. The low RDS(ON) characteristic makes it suitable for efficient power switching applications where minimal conduction loss is critical. Verify that the gate charge and input capacitance parameters align with the driving circuit's speed requirements.

Part Context

The AO3434LS belongs to the AO3434 series from Alpha & Omega Semiconductor, which focuses on low-voltage, high-efficiency power solutions. This series leverages trench technology to reduce resistance and improve thermal handling compared to standard planar devices. The LS variant specifically denotes the SOT-23-3L package configuration used in space-constrained portable and consumer electronics designs.

Replacement Considerations

The AO3434A is a related part in the same series offering similar electrical characteristics but may differ in specific package or tolerance details. Verify compatibility with the AO3434 model if substituting, ensuring all voltage, current, and thermal ratings meet or exceed the original design specifications.