Date on STK7551 regulator?

[Tony Duell]

Does anyone have, or know of a source of, data on the STK7551?

This is a hybrid circuit, designed to mount onto a heatsink. It's got 16 
(or so) connectons on oen edge, which are soldered to the PCB.

What I know :

It's a voltage regulator. It says so on the package. It's used in the 
Epson TF20 disk drive power supply, where it outputs +5V and +12V. It's 
clearly a dual regulator, and I uspect it's a switcher.

What I would like is at least a pinout, and preferably even more data 
(Please don't send anything but plain text to me here, if you've got 
images, or pdfs, or something, contact me, and I'll give you an address 
to sned them to. Thanks!)

-tony