NCP2809BDMR2

Overview

The NCP2809BDMR2 is a stereo audio power amplifier delivering 135 mW into 16 Ω loads from a 5.0 V supply. It operates on a 2.2 V to 5.5 V range with ultra-low shutdown current of 600 nA. The device features excellent PSRR of 85 dB, allowing direct battery connection. It includes pop-and-click noise protection and thermal overload protection.

Feature Summary

• Stereo headphone amplifier with adjustable external gain configuration
• Capless operation capability for simplified PCB layout
• Ultra-low current shutdown mode for extended battery life
• Integrated thermal overload and short-circuit protection

Applications

• Cellular phones
• Portable stereo systems
• MP3 players
• Personal computers

Procurement Notes

Verify the DM suffix indicates the Micro10 package (CASE 846B1) before ordering. Confirm RoHS compliance status as per latest datasheet revision. Ensure ESD handling protocols are followed during assembly due to sensitive input stages.

Selection Notes

Select this model when external gain setting is required, unlike the fixed-gain NCP2809A. Suitable for low-voltage portable designs needing high PSRR. Verify load impedance matches 16 Ω or 32 Ω specifications for optimal THD+N performance.

Part Context

Part of the NCP2809 series, designed for cost-effective stereo audio amplification in portable electronics. Offers a compact Micro10 package solution compared to larger DFN options.

Replacement Considerations

NCP2809AMNR2G serves as a functional alternative with fixed internal gain.