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Product Detailed Parameters
- Description：IC AMP CLASS D MONO 3W 8DFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：3W x 1 @ 4Ohm
- Voltage - Supply：2.8V ~ 5.5V
- Features：Depop, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：8-DFN (3x3)
- Package / Case：8-WDFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The PAM8303CBYC is a mono, filterless Class-D audio power amplifier manufactured by Diodes Incorporated. It delivers 3W output at 10% THD+N with a 4Ω load at 5V supply voltage. The device operates within a supply voltage range of 2.8V to 5.5V and features ultra-low EMI performance, exceeding FCC Class-B standards by 20dB at 300MHz. It incorporates high PSRR, differential inputs, short-circuit protection, and thermal shutdown. The component is housed in an U-DFN3030-8 package.
Feature Summary
- Filterless architecture eliminates the need for external output filters, reducing PCB area and system costs.
- Ultra-low EMI design provides superior noise immunity compared to standard regulatory limits.
- Integrated protection mechanisms include short-circuit protection and thermal shutdown for enhanced reliability.
Applications
- Cellular phones
- Smart phones
- MP4/MP3 players
- GPS devices
- Portable game machines
Procurement Notes
Verify the specific ordering suffix 'BYC' corresponds to the U-DFN3030-8 package configuration. Confirm that the component status is acceptable for your design lifecycle, as the datasheet indicates this series may be recommended against for new designs in favor of newer alternatives. Ensure compliance with RoHS and halogen-free requirements specified in the documentation.
Selection Notes
Select this component when a compact, single-channel audio solution is required for battery-powered portable electronics. The filterless design simplifies the bill of materials by removing inductors. Consider the U-DFN3030-8 package for space-constrained layouts. Verify that the 2.8V to 5.5V supply range aligns with the target system's power architecture.
Part Context
The PAM8303CBYC belongs to the PAM8303C family of ultra-low EMI, 3W mono Class-D amplifiers. It is designed specifically for cellular handsets and portable media devices where size and efficiency are critical. The manufacturer notes that this product line is not recommended for new designs, suggesting consideration of successor models like the PAM8304 for future projects.
Replacement Considerations
The datasheet explicitly recommends using the PAM8304 as an alternative for new designs. No other direct substitute part numbers are listed in the provided documentation.
FAQ
Does the PAM8303CBYC require external LC filters?
No, the PAM8303CBYC utilizes a filterless architecture that does not require external output filters.
What is the maximum operating temperature?
The maximum operating ambient temperature is +85°C.
