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    Part Img L4978 datasheet by STMicroelectronics

    • 2A STEP DOWN SWITCHING REGULATOR
    • Original
    • Yes
    • Unknown
    • Active
    • EAR99
    • 8542.39.00.01
    • 8542.39.00.00
    • Find it at Findchips.com

    L4978 datasheet preview

    L4978 Frequently Asked Questions (FAQs)

    • The maximum input voltage that can be applied to the L4978 is 40V, but it's recommended to keep it below 35V for reliable operation.
    • To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, keep the input and output capacitors close to the regulator.
    • The L4978 can regulate properly with a minimum load current of 5mA, but it's recommended to have a minimum load of 10mA for optimal performance.
    • The L4978 is rated for operation up to 150°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures.
    • Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit to protect the L4978 from input voltage surges and transients.
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