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ST Microelectronics L5970A question

Discussion in 'Electronic Components' started by b60s, Nov 9, 2005.

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  1. b60s

    b60s Guest

    Hi all

    I'm using the L5970AD to provide a 3.3V supply, however the undervoltage
    lockout (UVLO) does not appear to operate when the input voltage drops
    too low for normal regulation to occur; that is, the output voltage does
    not shut down cleanly but droops at about 0.5V below the input voltage.
    This is proving a major problem as the equipment is battery operated
    some of the time. Does anyone have any info on what this device actually
    does or how the UVLO actually operates.

    Cheers
    Brian
     
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