S-19212B70A-M5T1U

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

The S-19212B70A-M5T1U is an automotive-grade positive voltage regulator from ABLIC Inc., part of the S-19212B/DxxA Series. It provides a fixed 7.0 V output with ±2.0% accuracy across the -40°C to +125°C junction temperature range. The device supports up to 36 V input and delivers 250 mA output current, utilizing high-withstand voltage CMOS technology. Key electrical parameters include a typical operating current consumption of 6.5 μA and a dropout voltage of 0.80 V at full load. It features built-in overcurrent protection, thermal shutdown, and an ON/OFF control circuit.

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 36 V input and 45 V load dump
• Integrated overcurrent protection and thermal shutdown circuits for system safety

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

• Constant-voltage power supply for vehicle interior electrical applications
• Power regulation for engine, transmission, and suspension systems
• Voltage regulation for ABS and related EV/HEV/PHEV devices

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

Verify the specific suffix M5T1U corresponds to the SOT-23-5 package and tape reel packing configuration before ordering. Confirm that the B-type logic level requirements for the ON/OFF pin align with the host controller's voltage levels. Ensure compliance with AEC-Q100 Grade 1 specifications if required for the target automotive application.

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

Select this component when a stable 7.0 V rail is needed in harsh automotive environments. The B-type variant requires a minimum 1.5 V signal on the ON/OFF pin to activate. Designers must account for thermal dissipation limits under high load conditions and ensure appropriate ceramic capacitors are used for stability.

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

This device belongs to the S-19212B/DxxA family of automotive voltage regulators. The series is characterized by low current consumption and high accuracy. The 'B' designation indicates specific ON/OFF logic thresholds compared to the 'D' type. The M5T1U suffix identifies the physical SOT-23-5 surface-mount package.

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

S-19212D70A-M5T1U (Different ON/OFF logic threshold)

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

What is the difference between the B and D types in this series?

The B type has an ON/OFF pin 'H' level minimum of 1.5 V and 'L' level maximum of 0.25 V. The D type has an ON/OFF pin 'H' level minimum of 2.0 V and 'L' level maximum of 0.8 V.

How does the discharge shunt function work?

When the ON/OFF pin is set to the OFF level, the internal circuit stops, the output transistor turns off, and the discharge shunt circuit activates to pull the VOUT pin down to the VSS level.