Class F Amplifiers

LPA2176-Class F Amplifiers
2.5-5.5Input Voltage(V):
Class FClass:
3W,5V@4Ω,10%Output Power(W):
1Output Channel:
XGain Control:
YShort Circuit Protection:
2Terminal Current(uA):

3-Walts Mono Filter-free Audio Power Amplifier

General Description

The LPA2176 is a 6W, class-F mono audio amplifier integrated Class AB/D optional mode and unique Non-Crack Noise (NCN) function. It is capable of delivering 6.6watts of continuous average power to a 2Ω BTL load with less than 10% distortion (THD) from a 5.5V DC power supply. 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 LPA2176 is available in ESOP-8.


 Portable Bluetooth Speaker
 Cellular and Smart mobile phone
 Square Speaker


 The unique Non-Crack Noise (NCN) function
 Shutdown current:<5uA
 600KHz fixed frequency switching for amplifier
 5.5W Output at 10% THD with a 2 Ω Load and 5V VDD for amplifier
 4.4W Output at 1% THD with a 2 Ω Load and 5V VDD for amplifier
 4.0W Output at 10% THD with a 4 Ω Load and 5.5V VDD for amplifier
 Short Circuit Protection
 Filterless,Low Quiescent Current and Low EMI
 Amplifier Efficiency up to 90%
 Free LC filter digital modulation, direct-drive speakers
 Thermal Shutdown
 Few External Components to Save the Space and cost
 Pb-Free Package

Marking Information

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