Class F Amplifiers

LPA2154-Class F Amplifiers
2.5-6.5Input Voltage(V):
Class FClass:
2*5W,6V@4Ω,10%Output Power(W):
2Output Channel:
XGain Control:
XShort Circuit Protection:
2Terminal Current(uA):

Filterless 2x8W Class- F Stereo Audio Amplifier

General Description

The LPA2154 is a 2×8W, class-F audio amplifier with a mode pin for switch the work mode. 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. The LPA2154 is available in ESOP-16.


Portable Bluetooth Speaker
Cellular and Smart mobile phone
Square Speaker



 500KHz fixed frequency switching for amplifier
 2×3.3W Output at 10% THD with a 4Ω Load and 5V
PVDD for amplifier
 2×4.8W Output at 10% THD with a 4Ω Load and
6.0V PVDD for amplifier
 2×8W Output at 10% THD with a 2Ω 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
 Short Circuit Protection
 Thermal Shutdown
 Few external components to save the space and
 Pb-Free Package


Marking Information

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