AMP, STEREO CLASS D 2W, SMD, 4663; No. of Channels:2; Power, RMS:2.1W; Min Load Impedance:4ohm; Voltage, Supply Min:4.5V; Voltage, Supply Max:5.5V; Case Style:TSSOP; No. of Pins:24; Operating Temperature Range:-40°C to +85°C; Amplifier IC Type:Audio Power; Base Number:4663; IC Generic Number:4663; Logic Function Number:4663; No. of Amplifiers:1; Power Output:2.0W; Temp, Op. Max:85°C; Temp, Op. Min:-40°C; Termination Type:SMD; Voltage, Supply +Nom:5V