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TI Home » TI E2E Community » Support Forums » Power Management » Non-Isolated DC/DC » Non-Isolated DC/DC Forum » LM5118 VCC during disable
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LM5118 VCC during disable

LM5118 VCC during disable

This question is answered
EdWalker
Posted by EdWalker
on Aug 08 2012 14:52 PM
Expert6370 points

Will the VCC linear remain active during disable with proper VIN applied?

It is not clear in the specifications that VCC will remain active during device disable.
VCC is a linear derived from VIN.
The spec only states it draws less than 10uA from VIN when disabled.

Ed Walker
Texas Instruments
ACAT/DCAT Support

 

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  • EricLee1880267
    Posted by EricLee1880267
    on Aug 08 2012 15:43 PM
    Verified Answer
    Verified by EricLee1880267
    Expert5410 points

    Hi


    VCC regulator is enabled by pulling up EN. In other word, VCC regulator will be disabled by pulling down EN even if a proper VIN pin voltage is applied.

    LM5118 consumes about 10uA when VCC is disabled.


    Regards,
    Eric

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