National Semiconductor LM48557TL/NOPB Audio Amplifier Function: Speaker Audio Amplifier Output Configuration: 1-Channel Mono Dual Supply Voltage (max): 4.5V Dual Supply Voltage (min): 1.7/2.7V Dual Supply Voltage (typ): 3V Features: Depop, Differential Inputs, I??C, Mute, Shutdown, Volume Control Lead Free Status / Rohs Status: Compliant Max Output Power X Channels @ Load: - Mounting: Surface Mount Mounting Type: Surface Mount Operating Temp Range: -40C to 85C Operating Temperature Classification: Industrial Operational Class: Class-AB Output Type: 1-Channel (Mono) Package / Case: 16-MicroSMD Package Type: uSMD Pin Count: 16 Power Supply Rejection Ratio: 80dB Power Supply Requirement: Dual Rail/rail I/o Type: No Series: Boomer?® Single Supply Voltage (max): Not RequiredV Single Supply Voltage (min): Not RequiredV Single Supply Voltage (typ): Not RequiredV Type: Class AB Voltage - Supply: 2.7 V ~ 4.5 V Other Names: LM48557TLTR