SMPS Help

Hi,

I was wondering if i might be able to get a little help with something im working on.
I will try and give as much info as i can.

I need a Power supply for project, the power supply has to put out 15v @ around 100ma

There is limited space in the case i want to use, were talking 50mm x 50mm floor space with a 15mm +/- 1mm overhead.

All the transformers i can find are too tall so i cant use these, so i started looking at the SMPS types, there are soo many to look at im a little lost.

PSU spec required is

Input 240v AC
Output 15v @100mA

Also just to make things really awkward i need the cost to stay pretty low.

Does anyone have any ideas, or maybe someone has built one with success?

if it is not a school homework, you will get in market with lower cost and better specs.
the only concern is your limited space.

It is not homework

I have looked for a commercial solution but there doesnt seem to be one that fits my requirements

There might be something from http://www.biaspower.com that would work.

Otherwise, doing your own based on an integrated switching regulator would be my next suggestion. http://www.powerint.com/ would be a good place to start.