Los Angeles: US Vice-President Mike Pence is not expected to use his Australian visit to raise new objections to the controversial asylum-seeker deal that infuriated President Donald Trump, White House officials have said.

Mr Pence will depart on Sunday for a week-long Asia-Pacific tour, with the first stop South Korea followed by visits to Japan, Indonesia and Australia.

He is scheduled to land in Sydney on April 22.

"I wouldn't anticipate any new news on that front," a senior Trump administration official, speaking to reporters on a background conference call ahead of the tour, said in response to a question about the refugee deal.