BD18HA5MEFJ-LBH2

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

The BD18HA5MEFJ-LBH2 is a single-output fixed positive Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 1.8 V with a maximum output current of 500 mA. 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 includes built-in over-current protection (OCP), thermal shutdown (TSD), and a shutdown function that reduces circuit current to 0 µA. The regulator is housed in an HTSOP-J-8 package and supports operation from -40°C to +105°C.

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

• Integrated over-current protection and thermal shutdown circuits for enhanced reliability under fault conditions.
• Shutdown function allows for zero current consumption in standby mode.
• Capable of driving ceramic output capacitors to support compact board designs.

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

• Industrial control systems requiring stable low-noise power supplies.
• Automotive electronic modules operating in harsh thermal environments.
• Portable battery-powered devices utilizing efficient linear regulation.

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

Verify the specific suffix LBH2 against the official ROHM datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status as indicated in the manufacturer's documentation. Ensure the component meets functional safety requirements if used in automotive applications, noting that this series may be designated as NRND for new designs.

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

Select this LDO when a fixed 1.8 V rail is required with up to 500 mA load capability. It is suitable for applications needing high line and load regulation with minimal external components. Consider the 600 mV dropout voltage relative to the minimum input supply. Verify compatibility with ceramic capacitors for stability and size reduction compared to tantalum alternatives.

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

This component belongs to the BDxxHA5MEFJ series of LDO regulators designed for industrial and automotive markets. These regulators are characterized by high accuracy reference voltage circuits and robust protection features. The series emphasizes long-term support for industrial applications while maintaining small form factors through the HTSOP-J-8 packaging technology.

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

Check for direct pin-compatible substitutes within the BDxxHA5MEFJ family offering different fixed voltages. Verify if newer generations from ROHM or other manufacturers provide equivalent electrical characteristics with improved availability status, as older variants may carry NRND designations.