S-19244B18A-E6T1U

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

The S-19244B18A-E6T1U is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by ABLIC Inc. It belongs to the S-19244 series, designed for automotive and industrial applications requiring high current capability. The device provides a fixed output voltage of 1.8 V with a maximum output current of 1 A. It operates within an input voltage range up to 10 V and features an 8-HSOPA surface-mount package. Key electrical characteristics include a typical power supply rejection ratio (PSRR) of 60 dB at 1 kHz and a quiescent current of 150 µA. The regulator supports operation over an ambient temperature range of -40°C to +125°C and holds AEC-Q100 qualification.

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

• High output current capability of 1 A for demanding load requirements
• Integrated soft-start function to limit inrush current during startup
• Built-in protection circuits including overcurrent, thermal shutdown, and short-circuit protection
• Automotive-grade reliability with AEC-Q100 certification

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

• Power management for automotive domain controllers
• Voltage regulation for sensor interfaces in harsh environments
• Supply conditioning for microcontrollers and memory devices
• GNSS antenna amplifier power supplies

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

Verify the specific suffix 'E6T1U' against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Confirm AEC-Q100 compliance status for your specific application environment. Check for any recent obsolescence notices or alternative pin-compatible replacements from ABLIC before finalizing procurement plans.

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

Select this component when a stable 1.8 V rail is required with up to 1 A load current. Ensure the input voltage does not exceed 10 V. Consider the 150 µA quiescent current if battery life is critical, though it is higher than ultra-low-power alternatives. Verify that the 8-HSOPA footprint fits the PCB layout constraints and that thermal dissipation is adequate for the expected power loss.

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

This part is part of the S-19244 series of LDO regulators from ABLIC, which are characterized by their 1 A output current and 10 V maximum input voltage. The series is distinct from the S-19212 (36 V input, 250 mA) and S-19243 (500 mA) variants. The 'B' in the model number typically denotes a specific output voltage bin or tolerance within the series, here corresponding to 1.8 V.

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

Publicly documented parameter-equivalent substitutes include S-19244A18A-E8T1U, S-19244C18A-E8T1U, S-19244D18A-E8T1U, S-19244E18A-E8T1U, S-19244F18A-E8T1U, and S-19244H18A-E8T1U. Verify pin compatibility and exact output voltage accuracy before substitution.