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LM76002: Drawing current from VCC

Part Number: LM76002

The datasheet says that drawing current from the VCC pin is "not recommended" but are there any guidelines on whether a small amount of current might be acceptable?  I am looking to provide 3.3V to a microcontroller.  Exact current draw is TBD but will be less than 5mA, possibly less than 1mA. 

I could use a separate LDO if needed but it's so tempting to use the 3.3V output that is just sitting there...

  • HI

    consider VCC is provide a clean power rail to internal control block and its voltage will change in PFM mode. If you have external load drawing vcc current, it may interfere the internal control block and make the DCDC work abnormal.

    Thanks