TCAN1057A-Q1: 3D CAD data

Hi Taku-san,

STEP files for TI packages are generally available on the Packaging page of ti.com. The search function on this page can be used to find the specific device and package you need. I've linked a search for TCAN1057AVDRBRQ1 below. 
https://www.ti.com/packaging/docs/searchproductbypackage.tsp?orderablePartNumber=TCAN1057AVDRBRQ1&packageDesignator=DRB&pinCount=8&results=results#resultspage 

Let me know if this the customer is looking for something else or if you have any more questions. 

Regards, 
Eric Schott