Our advantages 

Chinese manufacturing processes have undergone years of iteration, resulting in mature and reliable technologies. Many international corporations opt for production outsourcing in China. As an electronic components manufacturer in China, our products can fully replace those of major international brands in 99% of applications without the need for testing verification. Our products boast high consistency in quality, reasonable pricing, ample inventory, flexible supply, short lead times, and professional after-sales service. 

Description

● The LM4890S audio power amplifier is primarily designed for demanding applications in mobile phones and other portable communication devices. It is capable of delivering 0.5W of continuous average power into an 8Ω BTL load from a 5V DC power supply with less than 1% total harmonic distortion plus noise (THD+N).
● The Boomer audio power amplifier is designed specifically to provide high-quality output power with minimal external components. The LM4890S does not require output coupling capacitors or bootstrap capacitors, making it highly suitable for mobile phones and other low-voltage applications where minimal power consumption is a key requirement.
● The LM4890S features a low-power shutdown mode, which is activated by driving the shutdown pin low.
● The LM4890S incorporates advanced pop & click circuitry, eliminating transitions that would otherwise cause noise during power on and off.
● The LM4890S is unity-gain stable and can be configured for external gain setting resistors.

Features
● This device features a space-saving package: micro- sized MSOP8.
● Ultra-low current shutdown mode.
● BTL output capable of driving capacitive loads.
● Enhanced pop & click circuitry eliminates noise during power transitions.
● Operating voltage range of 2.2 - 5.5V.
● No output coupling capacitors, buffer networks, or required bootstrap capacitors.
● 0.1uA current in shutdown mode.
● External gain configuration capability

Applications
● Mobile phone
● Personal computer
● Portable electronic device