S-816A43AMC-BAST2G

Overview

The S-816A43AMC-BAST2G is a low dropout voltage regulator from the S-816 series, manufactured by ABLIC Inc. It utilizes CMOS process technology and incorporates an external PNP transistor to achieve high output current capabilities ranging from several hundred milliamperes up to 1 A. The device features a fixed output voltage of 4.3 V with an accuracy of ±2.0%. It supports a maximum input voltage of 16 V and includes built-in overcurrent protection and a shutdown function. Typical current consumption is 30 µA during operation and 1 µA in shutdown mode.

Feature Summary

• Incorporates an external transistor architecture to deliver high output currents suitable for portable devices
• Features a built-in phase compensation circuit that improves transient response under heavy load variations
• Includes a built-in current source that eliminates the need for an external base-emitter resistance
• Provides overcurrent protection and a shutdown function for enhanced system safety and power management

Applications

• Power supplies for battery-operated portable telephones
• On-board power units for electronic equipment requiring stable regulation
• Applications utilizing AC adapters where high input voltage tolerance is required

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific package markings against official datasheets. Check for obsolescence notices as this series may have limited availability. Ensure proper handling procedures are followed due to surface mount packaging requirements.

Selection Notes

Select this component when high output current is required alongside low quiescent current consumption. The external transistor design allows flexibility in thermal management and current capability. Verify that the application environment does not exceed the 16 V maximum input voltage rating. Consider the shutdown functionality if power conservation is critical during inactive periods.

Part Context

This part belongs to the S-816 series of external transistor type positive voltage regulators developed using CMOS technology. The series is designed for portable devices, offering low current consumption and high output current capabilities. It is distinct from internal transistor LDOs by requiring an external pass element to handle higher loads while maintaining efficiency.

Replacement Considerations

Publicly confirmed substitute part numbers for S-816A43AMC-BAST2G were not identified in available documentation. Consult ABLIC technical support for potential cross-references or updated series replacements.