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    AST1S31HF

    Up to 4 V, 3 A step-down 2.3 MHz switching regulator for automotive applications

    Parameters
    Input Voltage Min Volt2.8
    Input Voltage Max Volt4.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    RoHs compliantEcopack1
    GradeAutomotive
    Package NameVFDFPN 8 3x3x1.0
    Description

    The AST1S31HF is an internally compensated 2.3 MHz fixed frequency PWM synchronous step-down regulator. The AST1S31HF operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.The AST1S31HF device integrates a 70 mΩ high-side switch and a 55 mΩ...
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    Key features
    Key features
    • AECQ100 qualified
    • 3 A DC output current
    • 2.8 V to 4 V input voltage
    • Output voltage adjustable from 0.8 V
    • 2.3 MHz switching frequency
    • Internal soft-start and enable
    • Integrated 70 mΩ and 55 mΩ power MOSFETs
    • All ceramic capacitor
    • Power Good (POR)
    • Cycle-by-cycle current limiting
    • Current foldback short-circuit protection
    • VFDFPN 3 x 3 - 8L package
    Out of Stock
    Quantity $ per unit Savings
    1-9$3.850%
    10-99$3.4710%
    100-249$2.8426%
    250-499$2.7030%
    500$2.4237%
    500 + Contact sales
    $3.85
    Parameters
    Input Voltage Min Volt2.8
    Input Voltage Max Volt4.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    RoHs compliantEcopack1
    GradeAutomotive
    Package NameVFDFPN 8 3x3x1.0
    Description

    The AST1S31HF is an internally compensated 2.3 MHz fixed frequency PWM synchronous step-down regulator. The AST1S31HF operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.The AST1S31HF device integrates a 70 mΩ high-side switch and a 55 mΩ...
    Read More

    Key features
    Key features
    • AECQ100 qualified
    • 3 A DC output current
    • 2.8 V to 4 V input voltage
    • Output voltage adjustable from 0.8 V
    • 2.3 MHz switching frequency
    • Internal soft-start and enable
    • Integrated 70 mΩ and 55 mΩ power MOSFETs
    • All ceramic capacitor
    • Power Good (POR)
    • Cycle-by-cycle current limiting
    • Current foldback short-circuit protection
    • VFDFPN 3 x 3 - 8L package
    Associated products