Texas Instruments ,0.35W, 8-Pin SOIC TPA311D
9 x 3.Texas Instruments ,0.35W, 8-Pin SOIC TPA311D, Amplifier Type: Audio Power Amplifier, Output Type: 1 Channel Mono, 2 Channel Stereo, Application: Speaker, Amplifier Class: Class A-B, Mounting Type: Surface Mount, Typical Single Supply Voltage: 3 V, 5 V, Input Signal Type: Single Ended, Output Signal Type: Differential, Single Ended, Typical Gain Bandwidth Product: 1.