S-816A39AMC-BAOT2G

Overview

The S-816A39AMC-BAOT2G is a low dropout CMOS voltage regulator from the ABLIC S-816 series. It provides a fixed positive output voltage of 3.9 V with an accuracy of ±2.0%. The device supports an output current of up to 1 A and operates within an input voltage range of up to 16 V. Typical quiescent current consumption is 4 µA during operation and 0.5 µA in shutdown mode. The component utilizes a compact SOT-23-5 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• High-output current capability of 1 A for demanding load applications
• Ultra-low current consumption suitable for battery-powered portable devices
• Integrated shutdown circuit for effective power management
• Compatible with small ceramic capacitors for stable operation

Applications

• Portable electronic devices requiring efficient power regulation
• Battery-operated equipment needing extended operational life
• Embedded systems utilizing external transistor configurations

Procurement Notes

Verify the specific suffix BAOT2G against official ABLIC documentation to confirm pinout and marking details. Confirm availability status as distribution channels may list this part as obsolete or limited supply. Ensure compliance with RoHS directives by checking the latest environmental declaration. Validate that the required output current does not exceed thermal limits for the selected package.

Selection Notes

Select this component when a high-current LDO with minimal quiescent draw is required. The S-816 series allows flexibility through external transistors, enabling higher current handling than integrated solutions. Verify input voltage stability remains within the 16 V maximum limit. Consider thermal dissipation requirements given the 1 A output potential in the SOT-23-5 package.

Part Context

This regulator belongs to the S-816 series, designed for low-voltage operation and high accuracy. Unlike the S-814 series which integrates the pass transistor, the S-816 series often utilizes an external NPN transistor to achieve higher output currents while maintaining low current consumption. This architecture distinguishes it from standard monolithic LDOs in the manufacturer's portfolio.

Replacement Considerations

Direct substitutes include other S-816 series variants with compatible output voltages and packages. Verify pin compatibility before replacing. Cross-reference with S-814 series only if lower current requirements allow for integrated solutions.