The LM48580 is a fully differential, high voltage driver for piezo actuators and ceramic
speakers for portable multi-media devices. Part of TI’s Powerwise product line, the LM48580’s Class
H architecture offers significant power savings compared to traditional Class AB amplifiers. The
device provides 30VP-P output drive while consuming just 15mW of quiescent
The LM48580 is a single supply driver with an integrated boost converter which allows the
device to deliver 30VP-P from a single 3.6V supply.
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-bump
DSBGA package (1.46mm x 1.97mm).
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