* Fed chairman reaffirms "patient" approach to raising rates
* Wall St stocks edge lower in choppy session
* US data mixed: housing starts hit over 2-year low in Dec
* Dollar near 3-week low, sterling not far from 5-month high
* Trump, Kim to start 2-day summit in Hanoi on Wed
* Asian stock markets: https://tmsnrt.rs/2zpUAr4
TOKYO, Feb 27 (Reuters) - Asian shares inched towards a five-month high on Wednesday and the dollar hovered near a three-week low after Federal Reserve Chairman Jerome Powell reinforced the U.S. central bank's shift to a more "patient" approach on policy in the face of a slowing economy.
MSCI's broadest index of Asia-Pacific shares outside Japan advanced nearly 0.2 percent, climbing back toward the five-month peak scaled on Monday.
Japan's Nikkei share average gained half a percent, while Australian stocks were 0.2 percent higher.
China's blue-chip CSI300 and Hong Kong's Hang Seng Index also rose, by 0.4 percent and 0.5 percent, respectively.
U.S. stock futures were basically flat, with E-Minis for the S&P 500 holding steady following a technical disruption that halted trading for hours.
"There is a fear in the market that sentiment has got a bit carried away on the positive side, especially given the experiences we had through October and through December, when we had some really sharp downward corrections," said Nick Twidale, Sydney-based chief operating officer at Rakuten Securities Australia.
"A lot of investors are wary of seeing something along those lines," he added.
Powell, spelling out the Fed's approach to an economy that is likely slowing, told U.S. lawmakers on Tuesday it is in "no rush to make a judgment" about further changes to interest rates.
In two hours of testimony to the Senate Banking Committee, Powell elaborated on the "conflicting signals" the Fed has tried to decipher in recent weeks, including disappointing data on retail sales and other aspects of the economy that contrast with steady hiring, wage growth, and ongoing low unemployment.
More evidence of the hot and cold economy came overnight, with weaker-than-expected U.S. housing data and a rosy consumer confidence report..
U.S. homebuilding tumbled to a more than two-year low in December as construction of both single and multi-family housing declined, which overshadowed the rebound in consumer confidence in February after three months of declines.
The contrasting data points left Wall Street underpowered, with the benchmark S&P 500, the Dow Jones Industrial Average and the Nasdaq Composite closing down 0.1 percent each.
"Chairman Powell's comments were neutral and the economic data released overnight was mixed, insufficient to provide implications for the Fed's policy and directions to the market," said Yasuo Sakuma, chief investment officer at Libra Investments in Tokyo.
In the currency market, the dollar was softer after the Fed chief's testimony, with its index against major peers dipping more than 0.4 percent to its lowest in three weeks overnight. It recovered a little bit of ground in Asian trade, last trading 0.1 percent higher at 96.120.
The British pound vaulted after Prime Minister Theresa May offered lawmakers the chance to vote on delaying Brexit.
Sterling last traded at $1.3246, having risen to $1.3288 on Tuesday, its highest levels in five months. Against the euro, it hit a 21-month high of 85.63 pence.
The euro was down a tad at $1.1380 after hitting a three-week high of $1.1402 overnight.
Against the Japanese yen, the greenback held steady at 110.62 yen per dollar.
Investors will be keeping an eye on the U.S.-North Korean summit, which begins in Hanoi later on Wednesday.
U.S. President Donald Trump and North Korean leader Kim Jong Un were due to meet for their second summit, betting that their personal relationship can break a stalemate over the North's nuclear weapons and end more than 70 years of hostility.
Oil futures rose slightly on Tuesday after news that OPEC planned to continue production cuts despite Trump criticising the producer group for rising crude prices a day earlier.
U.S. crude futures stood at $55.96 per barrel, up 0.8 percent while Brent was 0.6 percent higher at $65.62 a barrel .
Gold was down slightly at $1,328.10, 1.4 percent below a 10-month peak of $1,346.70 scaled last Wednesday. (Reporting by Daniel Leussink and Tomo Uetake; Additional reporting by Hideyuki Sano; Editing by Shri Navaratnam and Richard Borsuk)