IR has high side switches, over current protected, over temperature 
protected.  I have had good results with them!



PicDude wrote:
> I need to switch on/off a 12V load, high-side, from a PIC running on 5V, and
> tried this circuit, but the output is always on.  With the PIC I/O floating
> (set as input), the load should be switched off, and with the I/O low, the
> load should be switched on.  I'm using 1k for R1 and 10K for R2.  The load
> will be up to ~250mA, btw.
>
> Any idea what I'm doing wrong here?  The circuit...
> http://www.narwani.net/neil/electronics/PIC-HS12VSwitch-01.gif
>
>   
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