S-19315AAAA-M5T1U7

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

The ABLIC S-19315AAAA-M5T1U7 is an automotive-grade voltage regulator with a reset function, utilizing high-withstand voltage CMOS technology. It supports a 36 V input and delivers up to 40 mA output current. The device operates within a temperature range of -40°C to +125°C and withstands 45 V load dump events. It features a selectable detection voltage from 3.0 V to 11.3 V via the SENSE pin, with Nch open-drain output. The package is SOT-23-5.

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

• High-withstand voltage design capable of handling 36 V inputs and 45 V load dump conditions.
• Integrated sense-input reset function allowing stable output even if the SENSE pin falls to 0 V.
• Built-in overcurrent protection and thermal shutdown circuits for enhanced reliability.
• Low current consumption with typical values of 2.0 μA during operation.

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

• Constant-voltage power supply and reset circuit for automotive electric components
• Power supply and reset circuit for low-current battery-powered devices

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

Verify the specific output voltage and detection voltage settings corresponding to the AA option code before ordering. Confirm that the SOT-23-5 package aligns with your PCB layout requirements. Ensure compliance with AEC-Q100 qualification details by contacting sales representatives for automotive applications. Check thermal dissipation limits when operating at maximum output currents.

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

Select this component for designs requiring high input voltage tolerance and integrated reset monitoring in a compact footprint. Consider the dropout voltage characteristics relative to your minimum input voltage. Evaluate the need for external pull-up resistors on the RO pin due to its open-drain configuration. Verify capacitor selection for stability, as ceramic capacitors are recommended for both input and output.

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

This part belongs to the S-19315 Series, which includes variants with different packages such as SOT-89-5 and HTMSOP-8. The series is designed for automotive environments, offering robust performance under extreme temperatures. Other models in the family may feature different output voltage ranges or detector configurations.

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

Direct substitutes within the S-19315 series include other SOT-23-5 variants like S-19315AAEA-M5T1U7, provided the electrical parameters match the application requirements. Cross-series replacements require careful verification of input voltage ranges and package dimensions.

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

What is the function of the SENSE pin?

The SENSE pin serves as the detection voltage input for the reset function. It allows the user to set the threshold at which the RO pin output changes state.

Can ceramic capacitors be used with this regulator?

Yes, ceramic capacitors with a capacitance of 1.0 μF or more are recommended for both the input (CIN) and output (CL) to ensure stable operation.

How does the discharge shunt circuit work?

The built-in discharge shunt circuit discharges the electrical charge from the output capacitor when the detector detects a condition, pulling the VOUT pin down to the VSS level.