The NJM2151A is a monaural audio power amplifier and stereo headphone amplifier for wide voltage operation. The NJM2151A was stereo headphone power amplifier for low distortion single-end output , and monaural power amplifier for high power bridge(BTL). The NJM2151A operate low voltage supply , low operating current and low power-down current. The NJM2151A includes MUTE , SUSPEND mode, and suitable for NOTE PC, PDA, CAMCODER, and other battery equipment.