BD18HC5WEFJ-E2

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

The BD18HC5WEFJ-E2 is a fixed-output low-dropout regulator manufactured by ROHM Semiconductor. It provides a stable 1.8V output with a maximum current capacity of 1.5A. The device operates within an input voltage range of 4.5V to 8V and features a typical dropout voltage of 0.6V at full load. It maintains high accuracy with ±1.0% output tolerance at 25°C. The regulator includes built-in overcurrent protection, thermal shutdown, and a shutdown function that reduces standby current to 0µA. It is housed in an HTSOP-J8 package suitable for surface mount applications.

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

• Integrated overcurrent protection circuit prevents IC damage during output short circuits.
• Shutdown function allows complete power-off with zero standby current consumption.
• Thermal shutdown circuit protects against heat damage under overload conditions.
• High-accuracy voltage regulation ensures stable output performance.

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

• Digital home appliances
• General-purpose electronic equipment requiring stable 1.8V logic supplies
• Portable devices utilizing ceramic capacitors for size reduction

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

Verify the specific suffix E2 when ordering to ensure compliance with RoHS standards and lead times. Confirm the HTSOP-J8 package availability matches your PCB footprint requirements. Check official documentation for long-term supply plans as this is classified as a standard-grade product. Ensure input voltage does not exceed 8V to maintain safe operation margins.

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

Select this component for applications requiring a fixed 1.8V rail with up to 1.5A load capability. It is suitable where thermal protection and short-circuit safety are critical design constraints. The device is not recommended for automotive use; choose alternative series for such environments. Consider the 4.5V minimum input requirement when designing power rails.

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

This part belongs to the BD18HC5WEFJ series of high-accuracy LDO regulators from ROHM. It shares electrical characteristics with the BD18HC5JEFJ but utilizes different production lines for efficiency. The family focuses on providing reliable voltage regulation for digital circuits while minimizing external component count through integrated protection features.

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

The BD18HC5JEFJ is noted as a reference code with identical electrical characteristics despite differing production lines. No other direct substitutes are documented in the provided data. Verify pin compatibility and thermal performance if replacing with non-ROHM equivalents.