Oncoming_Storm
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No. The combat section of the core rulebook says,
"Take 5-Foot Step
You can move 5 feet in any round when you don't perform any other kind of movement. Taking this 5-foot step never provokes an attack of opportunity. You can't take more than one 5-foot step in a round, and you can't take a 5-foot step in the same round that you move any distance."
Link.
| Rub-Eta |
Remember that 5ft steps do not expend your move action, as it's not a move action (but you can't spend your move action to move any distance, only other kinds of move actions are allowed). I'm noting this because swapping your standard action for a move action, as you mentioned, isn't connected to 5ft stepping.