TILM4861MX/NOPB
Overview
The LM4861MX/NOPB is a mono Class AB audio power amplifier designed specifically for low-voltage systems, operating between 2V and 5.5V. It is capable of delivering 1.5W of continuous average power into an 8-ohm load with 1% THD+N when powered from a 5V supply. This IC is optimized to provide high-quality output power with a minimal number of external components.
Why Choose This Part
The device features a low-current shutdown mode (0.6uA typical) and internal thermal protection to ensure reliability in compact designs. It eliminates the need for output coupling capacitors, bootstrap capacitors, or snubber circuits, which significantly reduces the total PCB footprint and Bill of Materials cost.
Applications
Key Specifications
Getting Started
To evaluate this part, design a PCB layout with short traces between the output pins and the speaker load to minimize inductive ringing. Ensure the bypass capacitor is placed as close as possible to the VDD pin, and use the external gain configuration pins to set the desired closed-loop gain for your specific input signal level.
