MAX4364ESA+

MAX4364ESA+ is a bridged audio power amplifier intended for portable audio devices with internal speakers. It is capable of delivering 1.4W from a single 5V supply and 500mW from a single 3V supply into an 8-ohm load. The MAX4364 bridged outputs eliminate the need for output-coupling capacitors, minimizing external component count. It also includes internal DC bias generation, clickless operation, short-circuit, and thermal-overload protection. This device is unity-gain stable, with the gain set by two external resistors. It is used in applications such as cellular phones, PDAs, two-way radios, and general-purpose audio.

• Clickless power-up and shutdown
• Thermal-overload and short-circuit protection
• Supply voltage range from 2.7V to 5.5V
• Supply current is 7mA typical at (TA = +25°C)
• Output offset voltage is ±1mV typical at (IN- = OUT+, IN+ = BIAS)
• Power-supply rejection ratio is 75dB typical at (VCC = 2.7V to 5.5V)
• Total harmonic distortion + noise is 0.04% typical at (AV = -2V/V, RL = 8 ohm, fIN = 1KHz)
• Noise is 12µVRMS typical at (fIN = 10KHz, BW = 22Hz to 22KHz)
• Shutdown supply current is 4µA maximum at (TA = +25°C)
• Operating temperature range from -40°C to +85°C, 8-pin SO package

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