LED buck driver spice model

Hi all,

I have trawled the net looking for a model for an LED buck driver so I can simulate a circuit in pspice, ideally something like the Supertex HV9910B or the model I will probably end up buying XP POWER - LDU0830S350. Does anyone know of a site where I could get these models, or a similar DC-to-DC LED driver of a constant current of between 350mA - 500mA? Input voltage from about 5V to as high as possible (but 30V is fine for my application). I don't think I have the circuit or pspice expertise to be able to create a model from stratch!

Any help or advice would be greatly appreciated!

Linear Technology - LT3474/LT3474-1 - Step-Down 1A LED Driver
Linear has a good spice "ltspice". It is free!!! If you dounload it there are two examples 3474 and 3474-1. In a minute I was able to get waveforms. Linear clames you can copy LTspice models over to Pspice and they will run. For most things I like LTspice over Pspice.

I haven't found a way to import it into pspice but it simulated very simply in ltspice so I can just use my results there!

Thanks very much!

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