SA58637 Overview
The SA58637 is a two-channel audio amplifier in an HVQFN20 package. It provides power output of 2.2 W per channel with an 8 Ω load at 9 V supply. The internal circuit is prised of two Bridge-Tied Load (BTL) amplifiers with a plementary PNP-NPN output stage and standby/mute logic.