Port Protection and Power Distribution-
I/O Expander Serial Controlled Load Switches

These SmartSwitch™ devices are members of Skyworks' Application Specific Power MOSFET™ (ASPM™) product family. They are targeted for I/O expansion applications and operate with an input voltage ranging from 1.8V to 5.5V, making them ideal for 2.5V, 3.3V, or 5V systems, as well as systems powered by Li-Ion batteries. These devices can also be used for general purpose power load switching.

To simplify switch implementation and reduce pin count, the state of each output channel is controlled with a single GPIO via the EN/SET pin using Skyworks' Simple Serial Control™ (S²Cwire™) one-wire interface. These devices have very low quiescent supply current significantly improving power efficiency.

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  • NewPart NumberCartPDFNumber
    of
    Channels
    EnableTurn On Rise Time
    (TR)
    Typ. RDS(ON)

    (mΩ)
    VIN

    (V)
    Typ. IQ

    (μA)
    Package
    (mm)
    Pb-FreeGreen
    AAT4298

    6S2Cwire™1.6 ?sPch 2.5, Nch 1.91.8-5.53SC70JW 10L, 2.0 x 2.2 x 0.55,
    TSOPJW 12L, 3 x 2.85 x 1.02
    AAT4296

    5S2Cwire™1.6 ?sPch 2.5, Nch 1.91.8-5.53SC70JW 8L, 2.0 x 2.1 x 1.05
    AAT4292

    7AS2Cwire™0.27µs11001.8-5.56.3SC70JW 10L, 2.0 x 2.2 x 0.55