LPA2172-Class F Amplifiers

产品型号 输入电压(V) 类型 输出功率(W) 输出通道 PSRR(dB) 增益控制 短路保护 关断电流(uA) 封装 规格书
LPA2172 2.5-6.5 Class AB/D 5W,5V@2Ω,10% 1 -70 X X 2 SOP8

Filterless 5.2W Class- F Mono Audio Amplifier

General Description

The LPA2172 is a 5.2W, class-F mono audio amplifier integrated Class AB/D optional mode. It is capable of delivering 5.2watts of continuous average power to a 2Ω BTL load with less than 10% distortion (THD) from a 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 LPA2172 is available in ESOP-8.


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

Shutdown current:<0.5uA
600KHz fixed frequency switching for amplifier
5.2W Output at 10% THD with a 2 Ω Load and 5V VDD for amplifier
4.2W Output at 1% THD with a 2 Ω Load and 5V VDD for amplifier
3.2W Output at 10% THD with a 4 Ω Load and 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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