National Semiconductor LMV1099TL/NOPB Features: Differential Inputs, I??C, Microphone, Mute, Shutdown Max Output Power X Channels @ Load: 83mW x 1 @ 32 Ohm Mounting Type: Surface Mount Output Type: Headphones, 1-Channel (Mono) Package / Case: 25-UFBGA Series: PowerWise?® Type: Class AB Voltage - Supply: 2.7 V ~ 5.5 V Other Names: LMV1099TL/NOPBTR