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Power/Alternative Energy  

Starting up a buck regulator with a voltage present at VOUT

Posted: 01 Sep 2008  Print Version  Bookmark and Share Subscribe

Keywords: buck regulator  regulator's output  voltage  N-Channel MOSFET 

[Summary of tips] The problem described in this application note is that of a buck regulator's inability to start-up when there is a voltage already present at the regulator's output (VOUT). The voltage at VOUT may be due to active load circuitry (powered from a different source) providing a voltage at VOUT through leakage, or because the buck r......
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