S-19243C50A-U5T1U

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

The S-19243C50A-U5T1U is a positive voltage regulator from the S-19243xxxA Series, manufactured by ABLIC Inc. It provides a fixed 5.0 V output with ±2.3% accuracy across an operating temperature range of -40°C to +125°C. The device supports up to 500 mA output current and operates with an input voltage between 2.5 V and 10.0 V. It features a built-in soft-start function with a typical time of 1.0 ms, overcurrent protection, and thermal shutdown at 170°C. The component is housed in an SOT-89-5 package.

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

• Built-in soft-start circuit for controlled output voltage rise
• Integrated overcurrent protection and thermal shutdown circuits
• Active high ON/OFF control logic with pull-down resistor functionality

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

• Constant-voltage power supply for vehicle interior electrical applications
• Power supply for home electric appliances
• Automotive engine, transmission, suspension, and ABS systems
• Related devices for EV, HEV, and PHEV applications

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

Verify the specific ordering suffix U5T1 corresponds to the SOT-89-5 tape packaging configuration. Confirm that the C-type designation matches the requirement for a pull-down resistor while excluding the discharge shunt function. Ensure compatibility with the active high ON/OFF logic level before finalizing procurement specifications.

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

Select this model when a fixed 5.0 V output is required with a maximum load current of 500 mA. The C-type variant is appropriate if a pull-down resistor on the ON/OFF pin is needed but the discharge shunt function is not desired. Verify that the input voltage remains within the 2.5 V to 10.0 V range during operation.

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

This component belongs to the S-19243xxxA Series of automotive linear regulators designed for 125°C operation. The series utilizes high-withstand voltage CMOS process technology to deliver high-accuracy output voltages. It is AEC-Q100 qualified, ensuring reliability for safety-critical automotive environments such as traction inverters and engine ECUs.

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

S-19243D50A-U5T1U: Identical electrical specifications but lacks the pull-down resistor feature.

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

What is the typical soft-start time for the S-19243C50A-U5T1U?

The soft-start time is fixed at approximately 1.0 ms for the A/B/C/D type variants.

Does the S-19243C50A-U5T1U include a discharge shunt function?

No, the C-type variant does not include the discharge shunt function; it only includes the pull-down resistor.