S-816A44AMC-BATT2U

Overview

The S-816A44AMC-BATT2U is a linear low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It provides a fixed output voltage of 4.4 V with a maximum output current capability of 300 mA to 1 A, depending on specific thermal and load conditions. The device operates within an input voltage range up to 12 V and features a typical dropout voltage of approximately 190 mV at rated load. It maintains high accuracy with a voltage regulation tolerance of 2%. The component is designed for surface-mount installation in a compact SOT-23-5 package, suitable for space-constrained portable electronics.

Feature Summary

• Fixed 4.4 V output voltage with 2% accuracy
• High output current capability up to 1 A
• Low dropout voltage for efficient power management
• Compact SOT-23-5 surface-mount package

Applications

• Portable battery-powered devices requiring stable 4.4 V rail
• Embedded systems needing low-noise linear regulation
• Consumer electronics with limited board space
• Industrial control modules operating within 12 V input limits

Procurement Notes

Verify the exact suffix BATT2U against official ABLIC datasheets to confirm pinout and electrical specifications, as distributor listings may vary. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Ensure the sourcing channel is authorized to avoid counterfeit components, especially given the availability of similar suffixes like BATT2G which may have different packaging or environmental certifications.

Selection Notes

Select this component when a fixed 4.4 V output is required with moderate to high current demands up to 1 A. It is appropriate for applications where low noise and high line/load regulation are prioritized over switching efficiency. Consider thermal dissipation capabilities in the SOT-23-5 package if operating near maximum current ratings. Verify that the input voltage does not exceed the 12 V absolute maximum rating.

Part Context

This part belongs to the ABLIC S-816 series of LDO regulators, known for high output current and low dropout characteristics. The S-816 series is widely used in portable devices due to its small footprint and robust performance. The S-816A44 variant specifically targets applications requiring a 4.4 V supply rail, distinguishing it from other fixed-voltage options in the same family.

Replacement Considerations

Direct substitutes include other S-816 series parts with compatible output voltages and current ratings, such as S-816A44AMC-BATT2G, provided pin compatibility and package type match. Cross-reference with other manufacturers' 4.4 V LDOs offering similar current capabilities and SOT-23-5 packaging, ensuring input voltage and dropout voltage specifications align with system requirements.