SMPS simulation

[slashguitar]

Hi,
I want to build an output adjustable flyback converter(off line) to work as a tracking preregulator for a lab powersupply. Unfortunately a wasn't able to find any simulation models for ICs likeTEA1552.
Any suggestions for ICs/Simulation software?
Thanks

[PA0PBZ]

LTspice, and look at the demo circuits, lots of flyback stuff: http://www.linear.com/designtools/software/demo_circuits.php

[free_electron]

TEA1552.pdf]

not a chance to get the models of such things.... besides you will need a lot of horsepower to simulate a dynamic system like an SMPS. the stabilisation run may take seconds and to actually sutdy it under impulse load etc will take very long simulation runs with massive datasets as output.

[PA0PBZ]

One second simulation time for 1ms run time, not bad 
(so 20 seconds total)

[BravoV]

LTspice, and look at the demo circuits, lots of flyback stuff: http://www.linear.com/designtools/software/demo_circuits.php

Though there are tons of switching circuit simulations for various topologies in LTSpice, the op is asking specifically about TEA1552 which is a NXP chip, don't think LTSpice will have that in their library even in the future, unless somehow NXP is acquired by Linear or vice versa.

[PA0PBZ]

Unfortunately a wasn't able to find any simulation models for ICs like

Note the 'like'... I'm aware that NXP will not be in LT's library but he didn't say it had to be NXP
If you want to simulate SMPS there's not much choice afaik, and LTspice is free...