SINGAPORE, March 21 (Reuters) - The dollar regained some ground on Tuesday but was pinned near a five-week low as traders tiptoed back into riskier assets after UBS' state-backed takeover of Credit Suisse allayed some fears of a widespread, systemic banking crisis.
"There has been pretty modest demand for U.S. dollars at the Fed swap lines, so that is a positive sign in and of itself," said Carol Kong, a currency strategist at Commonwealth Bank of Australia (CBA).
The dollar slipped 0.12% to 131.15 against the Japanese yen , while the U.S. dollar index , which measures the greenback against a basket of currencies, fell 0.04% to 103.30.
Lower U.S. rate expectations also added to downward pressure on the dollar ahead of the Fed's two-day policy meeting commencing later on Tuesday.
The Reserve Bank of New Zealand said on Tuesday it saw no immediate need to request the reinstatement of a U.S. dollar swap line that expired in 2021.