TS4902IST

Overview

The TS4902IST is a mono Class AB audio power amplifier manufactured by STMicroelectronics. It delivers up to 700mW of output power into an 8-ohm load when supplied with voltages ranging from 2.2V to 5.5V. The device operates at a supply voltage of 3.3V, providing 300mW of power. It features a gain bandwidth product of 2MHz and includes a standby mode controlled by an active-low input signal. The component is housed in an 8-MiniSO (TSSOP) package.

Feature Summary

• Class AB topology for audio amplification
• Active-low standby mode control
• Wide single-supply voltage operation range

Applications

• Portable audio devices
• Low-power consumer electronics
• Battery-operated audio systems

Procurement Notes

Verify the current lifecycle status as sources indicate this part may be obsolete. Confirm package compatibility with the 8-MiniSO form factor. Ensure design-in requirements match the specified 2.2V to 5.5V supply range and 8-ohm load capabilities before procurement.

Selection Notes

Select this component for mono audio applications requiring low-voltage operation. Consider the 700mW output capability relative to the load impedance. Evaluate the need for standby functionality and the active-low control interface. Verify that the TSSOP package fits the target PCB layout constraints.

Part Context

This amplifier belongs to STMicroelectronics' linear IC category, specifically within the audio amplifiers subcategory. It is designed for portable applications where power efficiency and low voltage operation are critical. The MiniSO package allows for compact integration in space-constrained electronic designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official STMicroelectronics channels for current equivalent recommendations or next-generation replacements.