LM1875T/LB05

Overview

The LM1875T/LB05 is a monolithic Class-AB audio power amplifier manufactured by Texas Instruments. It delivers 20W of output power into an 8-ohm load with a supply voltage range of 16V to 60V. The device features a gain bandwidth product of 5.5 MHz and a total harmonic distortion plus noise of 0.015%. It operates within a temperature range of 0°C to +70°C and utilizes a TO-220 package for through-hole mounting.

Feature Summary

• Integrated overload protection including internal current limiting and thermal shutdown mechanisms.
• Designed for stable operation at gains of 10 or greater without external compensation components.
• Capable of driving low impedance loads such as 4-ohm speakers with high current capability.

Applications

• Consumer audio equipment
• Professional audio amplifiers
• Signal processing systems

Procurement Notes

Verify the specific suffix LB05 against official manufacturer documentation to confirm compliance details and exact pinout configuration. Ensure that the ordering information matches the required RoHS status and packaging type before finalizing procurement orders.

Selection Notes

Select this component for designs requiring high-quality audio reproduction with minimal external circuitry. Consider the thermal management requirements associated with the TO-220 package when designing for maximum power output applications.

Part Context

This part belongs to the LM1875 series, which is widely recognized for its robust performance in audio power amplification. The series is designed to offer high quality performance with very low distortion levels suitable for demanding audio environments.

Replacement Considerations

LM1875T/NOPB is a verified substitute offering equivalent electrical characteristics and functionality within the same product family.