PAM8403 Datasheet PDF – 3W, Stereo Audio Amplifier – PAM

This is one of the Stereo Audio Amplifier types.

Part Number: PAM8403, PAM8403QT, PAM8403DT

Function : Filterless 3W Class-D Stereo Audio Amplifier

Package: SOP-16 Type

Manufacturer: Power Analog Microelectronics




The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins. It can extend the battery life, which makes it well-suited for portable applications.






1. Filterless, Low Quiescent Current and Low EMI

2. Low THD+N

3. Superior Low Noise

4. Efficiency up to 90%

5. Short Circuit Protection

6. Thermal Shutdown

7. Few External Components to Save the Space and Cost


Typical Application


1. LCD Monitors / TV Projectors

2. Notebook Computers

3. Portable Speakers

4. Portable DVD Players, Game Machines

5. Cellular Phones/Speaker Phones

PAM8403 Datasheet PDF


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