LOS ANGELES (AP) _ Actress Peggy Lipton, one of the stars of television's ''The Mod Squad,'' has filed for divorce from music producer Quincy Jones after 15 years of marriage, according to court papers.

Miss Lipton, whose real name is Margaret Ann Lipton Jones, cited irreconcilable differences for the breakup and is seeking unspecified spousal and child support, according to court papers filed Tuesday.

She also seeks joint custody of the couple's two daughters, Kidada, 15, and Rashida, 13, who have been living with their mother since their parents separated three years ago, the court papers say.

The couple married Sept. 14, 1974.

Miss Lipton played Julie Barnes in ''The Mod Squad,'' a series about undercover, counterculture cops that aired from 1968 to 1973. Jones has produced a number of hit albums, including Michael Jackson's ''Thriller.''