S-19243D33A-U5T1U

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

The ABLIC S-19243D33A-U5T1U is a positive voltage regulator from the S-19243xxxA Series, designed for automotive applications with operation up to 125°C. It provides a fixed 3.3 V output with ±2.3% accuracy across the temperature range. The device supports up to 500 mA output current and accepts an input voltage between 2.5 V and 10.0 V. Key features include a built-in soft-start function with a typical time of 1.0 ms, overcurrent protection, and thermal shutdown at 170°C. It operates in SOT-89-5 packaging.

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

• Built-in soft-start circuit adjusts output voltage rising time at power-on or when the ON/OFF pin is activated.
• Integrated overcurrent protection limits output transistor current and thermal shutdown circuit prevents overheating.
• ON/OFF circuit ensures long battery life with selectable discharge shunt and pull-down functions.

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

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

Verify the specific suffix U5T1 corresponds to the SOT-89-5 tape package configuration. Confirm that the D type designation matches the required active high logic without discharge shunt or pull-down resistor capabilities. Ensure the application environment remains within the specified -40°C to +125°C operating temperature range for full compliance.

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

Select this component for designs requiring a fixed 3.3 V rail with moderate current demands up to 500 mA. The D type variant is suitable when external discharge shunt or pull-down resistors are not needed. Consider the thermal resistance values for the SOT-89-5 package when designing for high ambient temperatures or continuous high-load conditions.

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

This part belongs to the S-19243xxxA Series, which utilizes high-withstand voltage CMOS process technology. The series offers both internally set and externally adjustable output voltage options. It is qualified under AEC-Q100 standards, making it appropriate for rigorous automotive environments requiring high reliability and wide temperature operation.

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

S-19243D33A-E8T1U (HSOP-8A package)

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

What is the typical soft-start time for the S-19243D33A-U5T1U?

The soft-start time is fixed at approximately 1.0 ms for the D type product.

Does the S-19243D33A-U5T1U include a discharge shunt function?

No, the D type does not have the discharge shunt function available; it is only present in A and B types.