piclist 2001\01\28\192140a >
Thread: Design challenge - switching regulator - update
www.piclist.com/techref/power/priswitch.htm?key=switching
picon face BY : Russell McMahon email (remove spam text)



> >Another interesting smps IC is the MC33364 which is cheapish and
> >excellent
>
> You mean, they put the infamous Schmitt Trigger switching regulator in a
> chip ;) I have to see this.

Fraid not.
Much more sophisticated.
It has all the features of a modern current controlled SMPS with soft start,
over voltage shut down etc  PLUS they have a pin where you feed in up to 700
volts directly to power the startup circuit and it turns this off once it
gets going. They have onchip thermal protection so that it will hiccup
thermally in startup mode if needs be.  Only real problem for me is the
minimum start voltage which is a bit high.

RM

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Subject (change) Design challenge - switching regulator - update

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