PAM8303AAZN

Overview

The PAM8303AAZN is a mono Class-D audio power amplifier manufactured by Diodes Incorporated. It delivers 2.5W of output power into a 4-ohm load from a single 5V supply. The device operates within a voltage range of 2V to 5.5V and supports an operating temperature range of -40°C to +85°C. It utilizes a 9-wire chip scale package (WCSP) with dimensions of 1.45x1.45mm. Key electrical characteristics include ultra-low EMI and filterless operation, designed for portable applications requiring high efficiency and minimal external components.

Feature Summary

• Filterless mono Class-D architecture eliminates the need for external output filters.
• Ultra-low electromagnetic interference (EMI) performance suitable for sensitive RF environments.
• Integrated protection mechanisms including thermal shutdown and short-circuit protection.

Applications

• Portable media players
• Mobile phones
• Personal digital assistants

Procurement Notes

Verify the specific suffix 'AAZN' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as product lifecycle stages may affect material declarations. Ensure the source document explicitly lists this part number to avoid confusion with similar variants in the PAM8303 family.

Selection Notes

Select this component for space-constrained designs requiring a filterless mono audio solution. The WCSP package offers a small footprint ideal for handheld devices. Consider the 2.5W output capability relative to the speaker impedance and supply voltage constraints. Verify that the system design accommodates the specific thermal requirements associated with the compact package size.

Part Context

This component belongs to the PAM8303 series of ultra-low EMI, filterless mono Class-D audio power amplifiers. The series is engineered for portable consumer electronics where board space and battery life are critical. The AAZN variant specifically denotes the 9-WCSP package configuration, distinguishing it from other package options like MSOP or QFN available in the broader product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Consult the manufacturer's official cross-reference guide for verified alternatives. Ensure any replacement matches the 9-WCSP package and 2.5W output specifications to maintain design integrity.