LM48580TL

• H-class drivers
• Integrated boost converter
• Bridged load output
• Differential input
• Three pins programmable gain
• Low supply current
• Minimal external components
• Micropower shutdown
• Thermal overload protection
• A space-saving 12-ball microSMD package is available

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The LM48580 is a fully differential, high voltage driven ceramic speaker for piezoelectric actuators and portable multimedia devices. Part of National Semiconductor's PowerWise product line, the LM48580's H-class architecture provides significant power savings over traditional Class AB amplifiers. The device is available at 30V_{of PP}Output driver while consuming only 15mW of quiescent power.

The LM48580 is a single-supply driver, an integrated boost converter, which allows the device to be sourced from a single 3.6V power supply_{30V available}of PP.

The LM48580 has three pin-programmable gain settings and a low-power shutdown mode that reduces quiescent current consumption to 0.1μA. The LM48580 is available in an ultra-small 12-ball micro SMD package (1.46mm x 1.97mm).

Main specifications

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• Touch screen smartphone
• Tablet
• Portable electronic devices
• MP3 player