BD18HA5MEFJ-ME2

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

The BD18HA5MEFJ-ME2 is a single-output positive fixed linear regulator (LDO) 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 thermal shutdown and overcurrent protection circuits. The component is housed in an HTSOP-J-8 surface-mount package and supports an operating temperature range from -40°C to +105°C.

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

• Integrated thermal shutdown and overcurrent protection for enhanced circuit reliability
• Fixed 1.8 V output voltage with high line and load regulation stability
• Designed for automotive applications with extended industrial temperature range support

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

• Automotive electronic systems requiring stable low-voltage power rails
• Industrial control equipment needing reliable linear regulation
• Embedded systems utilizing microcontrollers or sensors powered at 1.8 V

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

Verify the specific suffix ME2 against official ROHM documentation to confirm pinout and electrical characteristics match design requirements. Confirm AEC-Q100 qualification status if automotive compliance is mandatory. Check current lifecycle status as NRND (Not Recommended for New Designs) to assess long-term availability risks before finalizing procurement plans.

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

Select this component when a fixed 1.8 V supply is required with up to 500 mA load capability. Ensure the input voltage remains between 4.5 V and 8 V to maintain proper regulation. Consider the HTSOP-J-8 package constraints for thermal management and PCB layout. Verify that the 600 mV typical dropout voltage meets the minimum headroom requirements of the application under all operating conditions.

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

This part belongs to the ROHM BDxHA5 series of LDO regulators designed for automotive use. These devices are characterized by low noise and high ripple rejection, making them suitable for sensitive analog and digital loads in noisy environments. The series emphasizes robustness through integrated protection features and wide operating temperature ranges.

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

Check for direct cross-references in ROHM's replacement guide. Other parts in the BDxHA5 family with different output voltages (e.g., BD15HA5MEFJ-ME2 for 1.5 V) may share the same package but require voltage verification.