TS4973EIJT

Overview

The TS4973EIJT is a monolithic audio power amplifier manufactured by STMicroelectronics, designed for high-quality mobile applications. It operates from a supply voltage of 2.8V to 5.5V and delivers up to 1.2W output power into an 8Ω load at 5V with 1% THD+N. The device features rail-to-rail input/output capabilities, ultra-low standby current consumption of 10nA, and internal over-temperature shutdown protection. It utilizes a lead-free flip-chip package with 9 bumps.

Feature Summary

• Rail-to-rail input and output capability
• Ultra-low standby mode current consumption
• Internal over-temperature shutdown protection
• Dual inputs with selectable gain settings

Applications

• Mobile phones (cellular / cordless)
• PDAs
• Laptop/Notebook computers
• Portable audio devices

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm the specific ordering suffix matches the required lead-free specifications. Check the product status as this item may be classified as obsolete in certain catalogs. Ensure compliance with RoHS3 standards before integration into final designs.

Selection Notes

Select this component for portable electronics requiring minimal external components and low power consumption. Evaluate the BTL configuration requirements against the available gain settings. Consider the thermal dissipation characteristics relative to the ambient operating temperature range. Verify that the flip-chip footprint aligns with the PCB layout constraints.

Part Context

This part belongs to the TS4973 series of audio power amplifiers. It is specifically the lead-free variant packaged in a flip-chip format. The series is engineered to minimize external component count while maintaining high audio fidelity in space-constrained mobile environments.

Replacement Considerations

TS4973IJT: Standard version without lead-free designation. TS4973EKIJT: Version including back coating.