LM4820IBP-6

Audio Amplifiers Overview

The LM4820IBP-6 is a fixed-gain, mono Class AB audio power amplifier manufactured by Texas Instruments. It delivers 1W of continuous average output power into an 8Ω load with less than 1% THD+N when supplied with 5VDC. The device operates within a supply voltage range of 2V to 5.5V and features integrated depop circuitry to minimize switching noise. Packaged in an 8-pin uSMD (WFBGA) format, it supports surface-mount assembly and functions across an operating temperature range of -40°C to 85°C.

Audio Amplifiers Feature Summary

• Fixed gain architecture providing consistent amplification without external feedback adjustment
• Integrated depop circuitry eliminates audible pop-and-click noises during power-up and power-down transitions
• High efficiency Class AB topology optimized for low-power portable audio applications

Audio Amplifiers Applications

• Portable media players requiring single-channel audio amplification
• Mobile phones and smartphones with limited power budgets
• Personal digital assistants and handheld communication devices

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Request original datasheets and test reports to validate electrical parameters against current standards. Ensure proper handling procedures are followed due to the small form factor.

Audio Amplifiers Selection Notes

Select this component for designs requiring a simple, fixed-gain mono amplifier solution. It is suitable for systems where external gain-setting resistors are undesirable. Consider the 8Ω load capability and 1W output power when matching speaker impedance. Evaluate the 2V to 5.5V supply range compatibility with the system's battery or regulator architecture.

Audio Amplifiers Part Context

This part belongs to the LM4820 family of audio power amplifiers designed for mobile electronics. It represents a transition from traditional DIP packages to compact surface-mount technologies like uSMD. The series focuses on minimizing board space while maintaining high audio fidelity in consumer-grade portable devices.

Audio Amplifiers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications before considering alternative components from other manufacturers.