S-816A43AMC-BAST2U

Overview

The S-816A43AMC-BAST2U is a linear voltage regulator from ABLIC Inc., designed for surface-mount applications in the SOT-23-5 package. It provides a fixed output voltage of 4.3V with a maximum output current capability of 1A. The device features a low dropout voltage, specified as 920mV at maximum load, ensuring efficient regulation even when the input-output differential is small. It operates within a temperature range of -40°C to +85°C and includes internal protection mechanisms typical of this series.

Feature Summary

• Fixed 4.3V output voltage for stable power supply applications
• High current capability up to 1A for demanding loads
• Low dropout voltage design for improved efficiency
• Compact SOT-23-5 surface-mount packaging

Applications

• Battery-powered portable devices requiring stable 4.3V rail
• Embedded systems needing high-current linear regulation
• Industrial control modules operating in extended temperature ranges

Procurement Notes

Verify the specific suffix 'BAST2U' against official ABLIC documentation to confirm tape-and-reel quantity and pin configuration. Ensure compatibility with existing PCB footprints for SOT-23-5 packages. Cross-reference thermal requirements for 1A operation under expected ambient conditions.

Selection Notes

Select this component when a fixed 4.3V output is required with up to 1A current capacity. Consider the low dropout characteristic if input voltage margins are tight. Verify that the SOT-23-5 package fits the mechanical constraints and that thermal dissipation is adequate for the application's power loss.

Part Context

This part belongs to the S-816 series of linear regulators from ABLIC. The series is characterized by high output current capabilities and low dropout voltages, suitable for various power management needs in consumer and industrial electronics. The S-816A43 variant specifically sets the output voltage to 4.3V.

Replacement Considerations

Check for direct substitutes within the S-816 series with different output voltages or current ratings if system requirements change. Verify pinout compatibility before substituting with other manufacturers' LDOs offering similar 4.3V/1A specifications.