LPA4809-Class AB 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
LPA4809 2.5-5.5 Class AB 140mW*2,5V@16Ω,0.1% 2 -80 X X 2 MSOP-8

140mW Headphone Amplifier with Unity-gain Stable

General Description

The LPA4809 is a dual audio power amplifier capable of delivering 140mW per channel of continuous average power into a 16Ω load with 0.1 %(THD+N) from a 5V power supply. Boomer audio power amplifier was designed specifically to provide high quality output power with a minimal amount of external components. Since the LPA4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The unity-gain stable LPA4809 can be configured by external gain-setting resistors. The LPA4809 features an externally controlled, active-low, micro power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.


 Headphone Amplifier
 Microphone Preamplifier
 Personal Computers
 PDA`s



 THD+N at 1KHz at 140mW continuous average power into 16Ω 0.1%
 THD+N at 1KHz at 80mW continuous average power into 32Ω 0.1%
 Shutdown Current 0.4uA
 Active-low shutdown mode
 “Click and Pop” reduction circuitry
 Low shutdown current
 MSOP8 surface mount packaging
 No bootstrap capacitors required
 Unity-gain



Marking Information

Please see specification. 
Please ask our service mailbox for what you want which is marketing@lowpowersemi.com.
We will send a copy to you as fast as we can.


业务咨询热线:0755-33000088 电子邮件:marketing@lowpowersemi.com Copyright © LPS Consulting 2005,All Right Reserved. 粤ICP备14043779号