Small Cap Fonts

I am trying to figure out how to use a small cap font when creating a PDF document manually... for example:

7 0 obj
<<
/Type/Font
/Name /T5
/BaseFont/Helvetica,SmallCap
/Subtype/Type1
/Encoding /WinAnsiEncoding
>>
endobj

I've tried many different variations around this basic structure, and I have tried including a fontDescriptor

7 0 obj
<<
/Type/FontDescriptor
...
/Flags 131104 %NonSymbolic & Small Caps
...
endobj

Can anyone point me in the right direction?

Thanks!

Corey