S-19244D33A-E8T1U

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The S-19244D33A-E8T1U is a positive fixed linear voltage regulator from the ABLIC S-19244 series. It provides a fixed output voltage of 3.3 V with a maximum output current of 1 A. The device operates within an input voltage range of 2.5 V to 10 V and features a typical power supply rejection ratio (PSRR) of 60 dB at 1 kHz. It includes control functions such as enable and soft start, along with protection against overcurrent, overtemperature, and short circuits. The component is qualified to AEC-Q100 standards for automotive applications and operates within a temperature range of -40°C to 125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated enable and soft start control functions
• Built-in overcurrent, overtemperature, and short-circuit protection
• Automotive grade qualification under AEC-Q100 standards

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Power management in automotive cockpit domain controllers
• Voltage regulation for sensor interfaces in vehicle systems
• Backup battery charging circuit regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix E8T1U corresponds to the 8-HSOPA package and reel packaging configuration. Confirm that the D33 designation aligns with the required 3.3 V fixed output voltage. Ensure compatibility with the target application's thermal requirements given the 125°C maximum junction temperature rating. Cross-reference the datasheet revision to confirm pinout and electrical characteristics match the design specifications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable 3.3 V rail is required for automotive-grade loads up to 1 A. The wide input voltage range supports direct connection to higher voltage bus lines. The inclusion of soft start minimizes inrush current during power-up. Verify that the 8-HSOPA package fits the PCB footprint constraints and that the thermal dissipation capabilities are sufficient for the expected load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the S-19244 series of low dropout CMOS voltage regulators designed for high reliability. The series is characterized by its automotive qualification and comprehensive protection features. It serves as a key power management solution for modern vehicle electronics requiring precise voltage regulation under varying environmental conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Check for parameter-equivalent parts within the same series, such as other voltage variants in the S-19244 family, ensuring package and electrical specifications remain identical.