ROHM Semiconductor USA, LLC Audio Amplifiers BD88200GUL-E2

The BD88200GUL-E2 is a coupling capacitorless headphone amplifier designed for single-supply operation ranging from 2.4V to 5.5V. It features an integrated negative voltage generator, allowing it to drive headphones with both positive and negative voltages, which eliminates the need for bulky DC-blocking capacitors. This design reduces costs, board area, and height while maintaining low-frequency response without degradation. The amplifier supports variable gain through external resistors, has low total harmonic distortion plus noise (THD+N) of 0.006% at 10mW output power with a 16Oc load, and operates with a low supply current of 2.0mA. It also includes integrated short-circuit and thermal-overload protection, making it suitable for various applications such as mobile phones, portable audio players, and Bluetooth headsets. The device is housed in a compact VCSP50L2 package measuring 2.1mm x 2.1mm, facilitating easy integration into space-constrained designs.