Texas Instruments TPA751 700-mW Mono, Differential Input, Class-AB Audio Amplifier with Active Low Shutdown TPA751DGNG4

The TPA751 is a Class-AB audio amplifier designed for low-voltage applications, capable of delivering 700 mW of output power into an 8-ohm load at a supply voltage of 5 V, and 250 mW at 3.3 V. It operates within a supply voltage range of 2.5 V to 5.5 V, making it suitable for various power supply configurations. The amplifier features a bridge-tied load (BTL) configuration, which eliminates the need for external coupling capacitors in most applications, thus benefiting compact designs, especially in battery-powered devices. The TPA751 includes a shutdown mode that reduces supply current to a mere 1.5 nA, enhancing power efficiency in portable applications. It is equipped with thermal and short-circuit protection to ensure reliable operation. The device is available in multiple surface-mount packages, including MicroStar Junior (BGA), SOIC, and PowerPAD MSOP, facilitating integration into various circuit designs. The amplifier is optimized for voice band frequencies, making it particularly suitable for wireless communication applications.