PAM8403DR-L

Overview

The PAM8403DR-L is a 3W Class-D stereo audio amplifier manufactured by Diodes Incorporated, housed in an SOP-16 package. It operates on a supply voltage range of 2.5V to 5.5V and delivers up to 3.2W output power at 10% THD+N with a 4Ω load at 5V. The device features low quiescent current (16mA typical), high efficiency up to 90%, and includes short circuit and thermal shutdown protection.

Feature Summary

• Filterless architecture allows direct speaker driving without external low-pass filters
• High efficiency extends battery life for portable applications
• Integrated short circuit and thermal shutdown protection

Applications

• LCD Monitors / TV Projectors
• Notebook Computers
• Portable Speakers
• Portable DVD Players
• Cellular Phones/Speaker Phones

Procurement Notes

Verify component authenticity through authorized channels as the datasheet marks this part as not recommended for new design. Confirm the specific ordering suffix matches required shipping formats. Check for end-of-life status or discontinuation notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for cost-sensitive designs requiring high efficiency and minimal external components. Ensure input signal levels are controlled to prevent clipping damage due to the fixed gain configuration. Verify that the application environment stays within the specified operating temperature range for reliable performance.

Part Context

This product belongs to the PAM8403 series of filterless Class-D audio amplifiers. It is designed to replace traditional Class-AB amplifiers in portable electronics where space and battery life are critical constraints. The SOP-16 package provides a compact solution for stereo audio output.

Replacement Considerations

The datasheet explicitly recommends using the PAM8406 as a replacement for new designs.