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Got a NCP3063 model for LTSpice?

G

Grant

Jan 1, 1970
0
Anyone have or know of a component model for the OnSemi NCP3063, to
use with LTSpice?

Can't find one on their site, and it's too different from the 33063
family chips that it's a superset of. Cannot find a second source
either, which is scary enough too. Oh well, maybe I need to try a
555, so many to choose from.

I have no idea where to start trying to make a model for a chip like
this. It's a cheap buck/boost PWM chip with on board 1.5A switch,
great for LED drivers and small regulators.

Thanks,
Grant.
 
L

legg

Jan 1, 1970
0
Anyone have or know of a component model for the OnSemi NCP3063, to
use with LTSpice?

Can't find one on their site, and it's too different from the 33063
family chips that it's a superset of. Cannot find a second source
either, which is scary enough too. Oh well, maybe I need to try a
555, so many to choose from.

I have no idea where to start trying to make a model for a chip like
this. It's a cheap buck/boost PWM chip with on board 1.5A switch,
great for LED drivers and small regulators.

Thanks,
Grant.

Don't see major differences between 33063, 34063 and 3063, except for
closer tolerance reference, timing cap value, current sense threshold
and thermal shutdown. Not biggies for basic function.

Any reason why one of the four currently-available LTspice 34063/33063
models (~available since 2004) shouldn't serve in your boost circuit?
Access them through the LTspice group on Yahoo:

http://tech.groups.yahoo.com/group/LTspice/

A buck converter app is stored in the files there, which you can
rewire to your heart's content.

http://tinyurl.com/3e3u95z

RL
 
G

Grant

Jan 1, 1970
0
Don't see major differences between 33063, 34063 and 3063, except for
closer tolerance reference, timing cap value, current sense threshold
and thermal shutdown. Not biggies for basic function.

You missed the extra latch.
 
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