TS487IQT

Overview

The TS487IQT is a Class-AB stereo audio amplifier manufactured by STMicroelectronics, designed for low-power applications such as headphone driving. It operates on a single supply voltage ranging from 2.2 V to 5.5 V and delivers an output power of 108 mW into a 16 Ohm load. The device features a gain-bandwidth product of 1.1 MHz and total harmonic distortion plus noise (THD+N) of 0.3%. It draws a typical operating supply current of 2 mA and has an input offset voltage of 20 mV. The component is housed in an 8-pin DFN package and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Stereo Class-AB architecture optimized for headphone amplification
• Pop-free switching capability to minimize audible transients during power cycles
• Low quiescent current consumption suitable for battery-powered devices

Applications

• Stereo headphone amplification in portable electronics
• Audio output stages in mobile phones and smartphones
• MP3 players and digital audio media devices

Procurement Notes

Verify the part status carefully, as this component may be listed as Not Recommended for New Designs (NRND) or obsolete in certain distributor databases. Confirm RoHS compliance and REACH directive adherence through official STMicroelectronics documentation before finalizing procurement decisions. Ensure the specific suffix matches the required packaging format.

Selection Notes

Select this component when a compact stereo solution with minimal external components is required for low-voltage systems. Consider the 16 Ohm load impedance specification and the 2.2 V minimum supply voltage constraint. Evaluate the DFN-8 package dimensions against available PCB space. Compare performance metrics like THD+N and supply current against alternative mono or dual-channel options if channel count requirements differ.

Part Context

The TS487IQT belongs to the TS488 family of audio amplifiers from STMicroelectronics. This series focuses on providing high-quality audio reproduction in small form factors for consumer electronics. The IQT suffix typically denotes the specific tape-and-reel packaging variant within the DFN-8 footprint, distinguishing it from other packaging options like cut tape or tray configurations offered by distributors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult STMicroelectronics technical support or authorized distributors for current lifecycle status and potential cross-reference recommendations.