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    L5981TR

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    1 A step-down switching regulator
    Learn More about L5981TR

    Quantity $ per Unit Savings
    1 - 500$2.820%
    500 + Contact Sales
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    Out of stock
    $2.82
    Parameter NameParameter Value
    Input Voltage Min Volt2.9
    Input Voltage Max Volt18.0
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius150.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    RoHs compliantEcopack2
    GradeIndustrial
    Package NameQFN-8L P 0.5 mm

    The L5981 is a step-down switching regulator with a 1.5 A (min.) current limited embedded Power MOSFET, so it is able to deliver in excess of 1 A DC current to the load depending on the application condition.


    The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus.


    Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.


    The VFQFPN8 package with an exposed pad allows reducing the RthJA down to approximately 60 °C/W.

    Key features
    • 1 A DC output current
    • 2.9 V to 18 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and inhibit
    • Low dropout operation: 100% duty cycle
    • Voltage feedforward
    • Zero load current operation
    • Overcurrent and thermal protection
    • VFQFPN8 3 mm x 3 mm package