BD18IC0MEFJ-ME2

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

The BD18IC0MEFJ-ME2 is a single-output fixed low-dropout (LDO) linear regulator manufactured by ROHM Semiconductor. It provides a fixed 1.8 V output with a maximum continuous current of 1 A. The device operates within an input voltage range supporting up to 5.5 V and maintains performance across a temperature range of -40°C to +105°C. Key electrical specifications include a typical dropout voltage of 400 mV at full load, line regulation of 25 mV, and load regulation of 25 mV. The unit features a quiescent current of 500 µA and a maximum power dissipation of 2.11 W. It is housed in an HTSOP-J8 surface-mount package and holds AEC-Q100 automotive qualification.

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

• Automotive-grade reliability certified under the AEC-Q100 standard for harsh environment operation.
• Integrated protection mechanisms including thermal shutdown and over-current protection to ensure circuit safety.
• Compact HTSOP-J8 surface-mount packaging designed for space-constrained printed circuit board layouts.

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

• Power supply regulation for automotive electronic control units (ECUs).
• Voltage conditioning for infotainment systems and dashboard displays.
• Supplying stable power to sensors and actuators in vehicle networks.

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

Verify component authenticity through authorized distribution channels due to the NRND status. Confirm that the HTSOP-J8 package dimensions align with existing PCB footprints. Ensure input voltage constraints are respected to prevent excessive power dissipation exceeding the 2.11 W limit. Validate thermal management strategies for high ambient temperatures within the specified operating range.

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

Select this component when a fixed 1.8 V rail is required for automotive applications demanding AEC-Q100 compliance. Compare against adjustable variants if flexible voltage settings are needed. Consider the 1 A current capability against load requirements to avoid derating issues. Evaluate the 400 mV dropout voltage against minimum input supply levels to maintain regulation during transient conditions.

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

This LDO belongs to the BD18 series of automotive regulators from ROHM. It shares the HTSOP-J8 form factor with other members like the BD18HC0VEFJ-ME2 but differs in output configuration and specific electrical characteristics. The series targets robust power management solutions for vehicles requiring high accuracy and reliability under varying thermal loads.

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

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official ROHM resources for direct replacements or evaluate similar AEC-Q100 qualified LDOs with matching 1.8 V fixed output and 1 A current ratings.