BD18HC5VEFJ-ME2

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

The BD18HC5VEFJ-ME2 is a single-output low-dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 1.8 V with a maximum output current of 1 A. The device operates within an input voltage range of 4.5 V to 8 V and features a typical dropout voltage of 600 mV, with a maximum of 900 mV. It is housed in an HTSOP-J8 surface-mount package and supports operation from -40°C to +105°C. The component holds AEC-Q100 qualification for automotive applications.

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

• AEC-Q100 qualified for automotive reliability standards
• High-accuracy fixed output regulation
• Integrated overcurrent and thermal protection circuits

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

• Automotive electronic systems requiring stable 1.8 V power rails
• Digital logic circuit power supply conditioning
• Embedded controller voltage regulation in vehicle networks

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

Verify the specific suffix ME2 against the official ROHM datasheet to confirm pinout and electrical characteristics match design requirements. Confirm AEC-Q100 compliance status directly with the manufacturer documentation. Check for any recent lifecycle notices or obsolescence warnings prior to final procurement decisions.

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

Select this component when a fixed 1.8 V output at up to 1 A is required in an automotive environment. Ensure the input voltage remains between 4.5 V and 8 V. Consider the HTSOP-J8 package constraints for thermal management and PCB layout. Verify that the 600 mV typical dropout voltage meets the headroom requirements of the specific application circuit.

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

This part belongs to the BD18HC series of high-accuracy LDO regulators designed specifically for automotive use. It shares the HTSOP-J8 package form factor with other variants in the family, such as the BD18HA5VEFJ-ME2 and BD18GC0VEFJ-ME2, which offer different current ratings or input voltage ranges but similar regulatory accuracy and protection features.

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

The BD18HC5MEFJ-ME2 is listed as NRND (Not Recommended for New Designs). For new developments, ROHM recommends considering alternative parts from the same family or updated series. Verify functional equivalence if substituting with other 1.8 V, 1 A automotive LDOs.