S-19212B55A-S8T1U

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

The S-19212B55A-S8T1U is a positive voltage regulator from the S-19212B/DxxA Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 5.5 V with an accuracy of ±2.0% across the operating temperature range of -40°C to +125°C. The device supports an input voltage range of 3.0 V to 36 V and delivers up to 250 mA of output current. It features low current consumption of 6.5 μA typical during operation and includes built-in overcurrent protection and thermal shutdown circuits. The component is housed in an HTMSOP-8 package.

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

• Built-in ON/OFF circuit with discharge shunt function for extended battery life
• High withstand voltage capability supporting up to 45 V load dump conditions
• Integrated overcurrent protection and thermal shutdown for enhanced reliability

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

• Constant-voltage power supply for vehicle interior electrical applications
• Power supply for automotive engine, transmission, and suspension systems
• Related devices for EV, HEV, and PHEV applications

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

Verify the specific product type suffix (B or D) required for your ON/OFF logic levels before ordering. Confirm that the HTMSOP-8 package aligns with your PCB footprint design. Ensure compliance with AEC-Q100 qualification requirements if deploying in automotive environments. Contact sales representatives for thermal simulation services to validate power dissipation limits under your specific application conditions.

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

Select this model when a stable 5.5 V output is needed within a high-voltage system up to 36 V. The B-type variant activates at a minimum of 1.5 V on the ON/OFF pin, whereas the D-type requires 2.0 V. Ensure adequate heat sinking is provided as thermal resistance varies significantly with board layout. Verify capacitor selection to prevent oscillation, recommending ceramic capacitors between 1.0 μF and 100 μF for stability.

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

This component belongs to the S-19212B/DxxA series, which utilizes high-withstand voltage CMOS process technology. The series is designed for automotive applications requiring operation up to 125°C junction temperature. It offers selectable output voltages from 2.5 V to 16.0 V in 0.1 V steps. The family is characterized by low current consumption and high-accuracy output voltage regulation suitable for sensitive electronic loads.

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

S-19212D55A-S8T1U