BUY LA4631 https://www.utsource.net/itm/p/1208164.html
For Audio Applications 5W 2-Channel AF Power Amplifier
Description: The LA4631 is an integrated audio amplifier IC manufactured by Sanyo. It is a two-channel audio amplifier with a built-in power supply. Features: - Output power: 2.5W + 2.5W (THD = 10%, RL = 8Ω) - Low distortion: THD = 0.2% (RL = 8Ω, Po = 1W) - Low quiescent current: Iq = 10mA (VCC = 5V) - Built-in power supply - Standby switch - Built-in thermal protection circuit Applications: The LA4631 is suitable for use in portable audio devices such as portable radios, CD players, and MD players. It can also be used in car audio systems, home audio systems, and other audio systems. (For reference only)