PAM8303CBSC

Overview

The PAM8303CBSC is a mono Class-D audio power amplifier manufactured by Diodes Incorporated, housed in an MSOP-8 package. It delivers 3W output at 10% THD with a 4Ω load and 5V supply. The device operates on a single supply voltage ranging from 2.8V to 5.5V. Key electrical parameters include a shutdown current of less than 1µA, peak efficiency up to 90%, and ultra-low EMI performance that exceeds FCC Class-B standards by 20dB at 300MHz.

Feature Summary

• Filterless architecture eliminates the need for external output filters, reducing component count and PCB area.
• Ultra-low electromagnetic interference (EMI) design ensures compliance with strict regulatory standards.
• Integrated protection mechanisms include short-circuit protection and thermal shutdown to ensure device reliability.

Applications

• Cellular phones and smart phones
• MP4/MP3 media players
• GPS navigation systems
• Portable game machines

Procurement Notes

Verify the specific ordering suffix 'S' confirms the MSOP-8 package configuration. Confirm RoHS compliance status and lead-free manufacturing details directly with the manufacturer or authorized distributors. Ensure the procurement channel is authorized to avoid counterfeit components. Check for any recent product change notices regarding packaging or material composition updates.

Selection Notes

Select this component for portable applications requiring high efficiency and minimal external parts. The differential input structure helps reject noise and RF rectification. Consider the MSOP-8 package for standard surface-mount assembly processes. Evaluate the thermal resistance characteristics if operating near maximum temperature limits. Verify compatibility with the target system's supply voltage range.

Part Context

This part belongs to the PAM8303C series of filterless mono Class-D amplifiers. It is designed specifically for battery-powered devices where space and power consumption are critical constraints. The series offers alternatives in different packages, such as U-DFN3030-8, to suit various layout requirements while maintaining consistent electrical performance.

Replacement Considerations

The datasheet explicitly recommends using the PAM8304 as a replacement for new designs. Verify pinout compatibility and electrical specifications before substituting other Class-D amplifiers. Ensure any alternative supports the required filterless operation and meets the same EMI standards.

FAQ

Does the PAM8303CBSC require an external LC filter?

No, it features a filterless architecture that allows direct driving of speakers without external output filters.

How does the device handle over-temperature conditions?

It includes thermal shutdown circuitry that disables outputs when the die temperature exceeds +135°C, automatically resuming operation once the temperature drops by +30°C.