Last week, in an exclusive interview with the Wall Street Journal, outgoing Apple CEO Tim Cook warned that the memory chip crunch made price increases "unavoidable."

The lobbying push underscores the bind facing major U.S. technology companies as soaring memory ​chip costs collide with Washington's national security restrictions on ​Chinese chipmakers.

"They won't be able to get the memory because memory suppliers are only answering calls of the big players," said Nabila Popal, an analyst at IDC.