U.S. Magistrate Judge William Turnoff issued a temporary order of detention.
A U.S. Drug Enforcement Administration affidavit says Banton and two others tried to buy a large amount of cocaine from an undercover officer in Sarasota last week.
Banton has been in federal custody since Thursday. He is charged with conspiracy to possess with intent to distribute more than five kilograms of cocaine.
Banton's attorney says the singer denies the charges.
