Understanding a land pattern

I am thinking of using the TPS61201 to supply 3.3V to my arduino project and it comes in a SON-10 package. I am having trouble understanding the land pattern and the pad numbering on the last few pages of this data sheet:

http://www.ti.com/lit/ds/slvs577c/slvs577c.pdf

When I am looking at the page titled "Thermal Pad Mechanical Data" it shows the pin numbering as well as a pin 1 indicator on the thermal pad. I just can't tell how I am supposed to be looking at it. Is the drawing from the vantage point of a part that has the pads down on the board and I am looking at it from above, through the part to the pads....or am I looking at it as if the part is flipped upside down on its back and I am looking at the pads from the bottom? It will make a difference as to how I number the pads in my land pattern. If it is from the top looking down through the part then pad 1 on my board will either be in the top right or bottom left and if I am looking at it as if it is flipped upside down on its back then pad 1 on my board will either be bottom left or top right.

At the Top of Page 4 a label titled "Pin Assignments"...

DSC and DRC PACKAGE (TOP VIEW)

and the pins numbered from the left side down in a CCW directiion.

Bob

Docedison: At the Top of Page 4 a label titled "Pin Assignments"...

DSC and DRC PACKAGE (TOP VIEW)

and the pins numbered from the left side down in a CCW directiion.

Bob

Ah......that makes sense. Thanks!

Component PCB footprints are usually top-views (looking at the copper pads on the PCB). Sometimes there are also device drawings from several perspectives, which for DFN parts will show the underside if pads are visible as its a "as you look at it" view.

IC's are numbered anti-clockwise (top view) from pin 1 - so are clockwise in the bottom view. This is enough information to tell which view (pin 1 is always at the end of a row of pins/pads).

Not Mark... If the 'convention' of Pin 1 being the left most pin... They are then also anti-clockwise when one turns them over too, it's just whether the other pins are above or below.. In order.. Too.

Bob

??? Huh ???

Dip IC's.

Bob

Thanks everyone! Sometimes I get my perspectives mixed up :~