Hello,

I'm interested in driving a high powered LED (34 Watts). With ExpressSCH, I began building a circuit with National components (LM3433).
http://www.national.com/pf/LM/LM3433.html#Overview

I'm using LM5002 for my voltage.
http://www.national.com/pf/LM/LM5002.html#Overview

But I'd like to simulate with SPICE before building my desired circuit.

If I plan to use LTSPICE IV, which seems to be forum's preferred SPICE software, is there a way of importing National components?

It doesn't appear as though National supports SPICE.
http://www.national.com/analog/interface/ibis_home

If there isn't a method to import National components, what do you recommend for LT equivalent components?

~N3

 

I've settled on LT3743. With the 20A max current, the LT3443 is more than sufficient.