TPA2005D1DRBRG4

Overview

The TPA2005D1DRBRG4 is a mono, filter-free Class-D audio power amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 5.5 V and delivers an output power of 1.4 W into an 8-ohm load. The device features a typical quiescent current of 2.8 mA and a power supply rejection ratio (PSRR) of 75 dB. It supports a minimum load impedance of 8 ohms and functions across an operating temperature range of -40°C to +85°C. The component is housed in an 8-pin SON package.

Feature Summary

• Filter-free Class-D architecture eliminates external output filters
• Fast start-up time with minimal pop noise for portable applications
• Low quiescent current consumption for battery efficiency
• High power supply rejection ratio for audio clarity

Applications

• Personal Digital Assistants (PDAs)
• Cellular handsets earpiece and speaker phone circuits
• Melody playback systems in mobile devices

Procurement Notes

Verify the complete part number including the RG4 suffix to ensure compliance with specific packaging and environmental standards. Confirm the package type matches the design requirements. Check the manufacturer's latest documentation for any updates to electrical characteristics or recommended operating conditions before finalizing procurement specifications.

Selection Notes

Select this component for mono audio applications requiring high efficiency without external filtering. Ensure the load impedance meets the minimum 8-ohm requirement for optimal performance. Consider the 2.5 V to 5.5 V supply voltage range when designing the power stage. Verify thermal management capabilities for the SON package in the target enclosure.

Part Context

This device belongs to the TPA2005 family of audio amplifiers from Texas Instruments. It is designed specifically for portable consumer electronics where space and power efficiency are critical constraints. The filter-free design simplifies the bill of materials and reduces the overall footprint of the audio subsystem in compact mobile devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Texas Instruments application notes or distributor databases for cross-reference information if alternative sourcing is required.