S-816A54AMC-BBDT2U

Overview

The S-816A54AMC-BBDT2U is a linear voltage regulator controller IC manufactured by ABLIC Inc. It features a fixed output voltage of 5.4V and supports an output current of 1A when used with an external transistor. The device operates within a supply voltage range up to 16V and utilizes a positive output configuration. It is housed in a compact SOT-23-5 surface-mount package, designed for efficient power management in space-constrained applications.

Feature Summary

• Functions as a linear regulator controller requiring an external pass transistor for operation
• Provides a fixed 5.4V output voltage with high current capability via external components
• Operates with a wide input supply voltage range supporting up to 16V

Applications

• Battery-powered portable devices requiring stable 5.4V rails
• Embedded systems utilizing external NPN/PNP transistors for current boosting
• Industrial control modules needing regulated power from higher voltage sources

Procurement Notes

Verify the specific suffix codes against the official ABLIC datasheet to ensure compatibility with your design requirements. Confirm that the selected package variant matches your PCB footprint specifications. Ensure that the external transistor selection aligns with the controller's drive capabilities and thermal constraints for reliable performance.

Selection Notes

This component requires an external power transistor to function as a complete regulator circuit. Designers must select appropriate NPN or PNP transistors capable of handling the 1A load current. Consider thermal dissipation strategies for both the controller and the external pass element. Verify input voltage stability does not exceed the 16V maximum rating under all operating conditions.

Part Context

Part of the ABLIC S-816 series of linear regulator controllers. This family focuses on providing flexible voltage regulation solutions through external component integration. The S-816 series is widely used in applications where standard fixed-output LDOs do not meet specific current or voltage requirements.

Replacement Considerations

Direct substitutes may include other ABLIC S-816 series variants with different output voltages. Cross-brand replacements require careful evaluation of pin compatibility and external transistor drive requirements. Verify electrical characteristics match the original design specifications before implementation.