The LPA2164 is a 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 LPA2164 also can work at class-AB mode which make LPA2164 could apply to device with radio receiver. The other character of LPA2164 contact OCP 、 OTP and high noise suppression for FR signal.The LPA2164 is available in ESOP-16.
应用
◆ Portable Bluetooth Speaker ◆ Cellular and Smart mobile phone ◆ Square Speaker
数据参数
数据参数
输入电压(V)
2.5~6
工作类型
Boost,Class AB/D
通道数量
1
电源抑制比(dB)
-75
输出功率
5W,6.2V@4Ω,10%
关断电流(uA)
2
特点
Integrated DC boost,High efficiency,Differential input,Low THD+N
封装
ESOP16
特征
特征
◆ Integrated boost convertor ◆ Shut-down current:◆ Output voltage Up to 5.0V/2.0A ◆ Internal Compensation ◆ 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 ◆ Excellent POP&CLICK rejection ◆ Amplifier Efficiency up to 84% ◆ Excellent POP&CLICK rejection ◆ Short Circuit Protection, OCP, OTP ◆ Few External Components to Save the Space and cost ◆ Free LC filter digital modulation, direct-drive speakers ◆ Pb-Free Package