S-816A39AMC-BAOT2U

Overview

The S-816A39AMC-BAOT2U is a linear low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It belongs to the S-816 series and provides a fixed output voltage of 3.9 V with a maximum output current capability of 300 mA. The device operates within an input voltage range up to 5.5 V and maintains regulation across a junction temperature range from -40°C to +85°C. Key electrical characteristics include a typical quiescent current of 1 µA, ensuring minimal power consumption in standby modes. The unit features a dropout voltage of approximately 270 mV at full load and offers a line regulation of 20 mV and load regulation of 65 mV. It is housed in a compact SOT-23-5 surface-mount package suitable for space-constrained portable electronics.

Feature Summary

• Ultra-low quiescent current design minimizes power drain in battery-operated applications.
• Fixed output voltage configuration eliminates external resistor requirements for precise regulation.
• Compact SOT-23-5 package facilitates high-density PCB layout and automated assembly.

Applications

• Portable consumer electronics requiring efficient power management
• Battery-powered devices needing extended operational life
• Embedded systems utilizing low-noise stable voltage rails

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability upon order placement. Ensure storage conditions adhere to moisture sensitivity level ratings to prevent package degradation prior to soldering. Review latest datasheet revisions for any updates to electrical specifications or recommended operating conditions before finalizing procurement contracts.

Selection Notes

Select this regulator when a stable 3.9 V rail is required with minimal static current draw. Evaluate thermal dissipation capabilities based on the expected voltage drop and load current to ensure operation within the specified junction temperature limits. Compare dropout performance against source voltage variations to guarantee regulation under all operating scenarios. Consider package availability and lead times relative to production schedules.

Part Context

This component is part of ABLIC's S-816 series of LDO regulators, designed for low-power applications. The series emphasizes ultra-low current consumption while maintaining robust regulation performance. These devices are commonly integrated into mobile phones, wearable technology, and other portable gadgets where battery efficiency is critical. The S-816 family shares common architectural features but varies in output voltage and package options to suit diverse design needs.

Replacement Considerations

No verified public substitute part numbers are available for this specific component.

FAQ

What is the maximum input voltage for the S-816A39AMC-BAOT2U?

The maximum input voltage rating for this device is 5.5 V.

Does the S-816A39AMC-BAOT2U include overcurrent protection?

Yes, the device incorporates built-in overcurrent protection circuits to safeguard against short-circuit conditions and excessive load currents.