The Philippines' peso has tumbled to a fresh 11-year low, but the country's policymakers said that heralded good tidings. Nestor Espenilla, governor of the country's central bank, Bangko Sentral ng Pilipinas, or BSP, said he wasn't worried about either the deficit or the currency's drop — or even his expectation that the may fall further. The Philippine currency has been the worst performing in Asia this year, with the U.S. dollar rising around 3.7 percent against the peso. In contrast, the peso's peers have generally gained against the greenback. The dollar was fetching 51.159 pesos at 10:27 a.m. HK/SIN on Tuesday. Analysts have blamed the weakness on the country's current account deficit, which is when the value of a country's total imports exceeds its total exports. The difference between the two figures often must be financed by debt. "The Philippines is an emerging market that's growing quite fast. It's natural for such a market to have a current account deficit," Espenilla told CNBC's "Squawk Box" on Tuesday. "What's important is the quality of that deficit. If you look underneath the numbers, it's actually capital goods imports that are behind it. And this is going to improve productive capacity of the economy further."

Philippine peso bills and coins are laid on basket as a street vendor peels a fruit in Manila Jay Directo | AFP | Getty Images

He added that the current account deficit wasn't going to rise to more than 1 percent of gross domestic product. "Today, the Philippines has good market access, low external debt, and therefore, this current account deficit is something the economy can readily finance," Espenilla said on the sidelines of a Philippine economic briefing in Singapore. The central banker also said he wasn't overly concerned that the peso's fall might stoke price increases in the country, citing official forecasts that inflation would remain just above its 3 percent target ahead. "Since we have shown credibility in our inflation targeting, the pass-through effects on inflation of exchange rate depreciation have become very markedly low," he said. Analysts were somewhat more concerned about the currency. In a note on Monday, economists at bank ANZ noted that remittances in the fourth quarter from overseas Philippine workers and funds flowing into the country's growing outsourcing industry ceased to offset the Philippines' trade deficit. Remittances have risen this year, up 4.5 percent between January and May from the year-earlier period to $11.35 billion, according to data from the central bank. But ANZ noted that imports have surged, particularly for capital goods to be used in the construction industry. While the country's efforts to build its lagging infrastructure were likely a beneficiary of those imports, ANZ said it was concerned about expanding credit to the real estate sector, citing "spectacular" property price rises.