The LPA2153 is a 2×8W, class-F audio amplifier with EQ function for both channel. It offers low THD+N, allowing it to achieve high-quality Power Supply sound reproduction. The new filterless architecture allows the device to drive the speaker directly requiring no low-pass output filters, thus to save the system cost and PCB area. LPA2153 can display 2×8W output at 10% THD with 2 Ω load. When it provides 5V DC voltage, it can provide 2× 3.4W output at 10% THD with 4 Ω load. The efficiency of LPA2153 is much better than that of class-AB cousins with the same numbers of external components. The LPA2153 is available in ESOP-16.

Applications
 

Portable Bluetooth Speaker

Cellular and Smart mobile phone

Square Speaker

Features
 

 500KHz fixed frequency switching for amplifier

 2×3.3W Output at 10% THD with a 4 Ω Load and 5V

PVDD for amplifier

 2×4.8W Output at 10% THD with a 4 Ω Load and

6.0V PVDD for amplifier

 2×8W Output at 10% THD with a 2 Ω Load and 6.0V

PVDD for amplifier

 Filterless, Low Quiescent Current and Low EMI

 Amplifier Efficiency up to 85%

 Free LC filter digital modulation, direct-drive

speakers

 Thermal Shutdown

 Few external components to save the space and

cost

 Pb-Free Package