LM1875T/LB03

Overview

The LM1875T/LB03 is a Class-AB audio power amplifier manufactured by Texas Instruments. It delivers 25 W of output power into an 8 Ohm load with a total harmonic distortion plus noise of 0.02%. The device operates within a supply voltage range of 16 V to 60 V and functions at temperatures between 0°C and +70°C. It utilizes a TO-220-5 through-hole package.

Feature Summary

• Class-AB topology for high-quality audio performance
• Integrated thermal protection circuitry
• Internal current limiting for overload safety

Applications

• Consumer audio equipment
• Signal processing systems

Procurement Notes

Verify the component status carefully as this specific suffix variant may be obsolete or end-of-life. Confirm RoHS compliance details directly with the manufacturer, as historical data indicates potential non-compliance for older batches. Ensure the supplier provides valid traceability documentation before finalizing any acquisition.

Selection Notes

Select this component only if the specific TO-220-5 form factor and legacy specifications align with the design requirements. Evaluate alternative active variants from the same family if long-term availability is critical. Verify that the thermal management solution accommodates the specified operating temperature limits.

Part Context

This part belongs to the LM1875 series of monolithic power amplifiers designed for consumer audio applications. It offers low distortion and high quality performance using advanced circuit technology. The series is characterized by minimal external component requirements and robust internal protection features.

Replacement Considerations

LM1875T/NOPB