Flame retardant resin composition and molded article using the same

A flame retardant resin composition comprising:

• (A) a polycarbonate resin;
• (B) a silicon impact modifier;
• and
• (C) a flame retardant,
• wherein the (B) silicon impact modifier comprises particles having a core-shell structure and comprises about 60 wt % or more of a siloxane polymer,
• wherein the (C) flame retardant comprises a mixture of magnesium carbonate represented by Formula 1 and magnesium calcium carbonate represented by Formula 2:
• Mga(CO3)b(OH)2a−2b.cH2O [Formula 1]
• wherein a is 1 to 6, b is greater than 0 to 5, and c is 0 to 6;
• MgxCay(CO3)x+ymH2O [Formula 2]
• wherein x and y are the same or different and are each independently 1 to 5, and m is 0 to 5, and
• wherein the flame retardant includes the magnesium carbonate represented by Formula 1 and the magnesium calcium carbonate represented by Formula 2 in a weight ratio of about 3:1 to about 2:1.