Class X Amplifiers

Specification For Download
LPA2163-Class X Amplifiers
2.5-5.5Input Voltage(V):
Class XClass:
5W,3.7V@4Ω,Built in boostOutput Power(W):
1Output Channel:
XGain Control:
XShort Circuit Protection:
1Terminal Current(uA):

Build in EQ Function 8W Class- F Audio Amplifier With Boost Convertor Integrated

General Description

The LPA2163 is a Build in EQ Function 8W, class-F audio amplifier with boost convertor integrated. 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. With high performance inductor and diode,the boost convertor can offer 2A output current for load. It can provide up to 6.5V stable DC voltage for amplifier so that it can display 5.7W output at 10% THD with a 4Ω load. When it provides 5.0V DC voltage, it can provide 3.4W output at 10% THD with a 4Ω load. The LPA2163 also can work at class-AB mode which make LPA2163 could apply to device with radio receiver. The other character of LPA2163 contact OCP、 OTP and high noise suppression for FR signal. The LPA2163 is available in ESOP-16.


Portable Bluetooth Speaker
Cellular and Smart mobile phone
Square Speaker



 Build in EQ Function
 Integrated boost convertor
 Shut-down current:<3uA
 Output voltage Up to 5.0V/2.0A
 Internal Compensation
 Max duty cycle: 90%
 500KHz fixed frequency switching for amplifier work
at class_D mode and 1.2MHz for step up convertor
 POUT at 10% THD+N,VIN=3.7V for boost convertor
RL=4Ω,POUT=4.8W,boost to 6.0V for amplifier
RL=2Ω,POUT=8W,boost to 6.0V for amplifier
 POUT at 1% THD+N,VIN=3.7V for boost convertor
RL=4Ω,POUT=3.8W,boost to 6.0V for amplifier
RL=4Ω,POUT=6W,boost to 6.0V for amplifier
 Filterless, Low Quiescent Current and Low EMI
 Amplifier Efficiency up to 84%
 Excellent POP&CLICK rejection
 Short Circuit Protection, OCP, OTP
 Few External Components to Save the Space and
 Free LC filter digital modulation, direct-drive
 Pb-Free Package


Marking Information

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