LM4811MMX/NOPB TI Audio Amplifiers

LM4811MMX/NOPB is a dual Class-AB headphone amplifier from Texas Instruments, optimized for low-voltage portable audio designs with tight cost and PCB space limits. It operates across 2 V to 5.5 V supply voltage, delivering 105 mW per channel into 16 Ω loads and 70 mW per channel into 32 Ω loads at 5 V, with typical 0.1% THD+N at 1 kHz. It integrates a 16-step digital volume control ranging from +12 dB to −33 dB via two-wire interface, built-in click-and-pop suppression and thermal shutdown protection. The device features an ultra-low 0.3 μA shutdown current and requires no bootstrap capacitors or snubber circuits, cutting external components and BOM cost. Packaged in compact VSSOP, this unity-gain stable amplifier is ideal for battery-powered portable products. It is widely selected for smartphones, tablets, portable media players, Bluetooth headsets and miniature consumer audio accessories demanding low power, small footprint and clear audio performance. In stock at HL Electronics – request a quote for fast delivery.