BD33HA3MEFJ-ME2

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

The BD33HA3MEFJ-ME2 is a single-output fixed low-dropout linear regulator manufactured by ROHM Semiconductor. It provides a stable 3.3 V output with a maximum current capability of 300 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. Designed for automotive applications, it holds AEC-Q100 qualification and supports surface-mount installation in an HTSOP-J8 package. The component functions reliably across an extended temperature range from -40°C to +105°C.

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

• AEC-Q100 qualified for automotive reliability standards
• Fixed 3.3 V output voltage regulation
• Integrated thermal shutdown protection
• Soft start functionality to limit inrush current

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

• Automotive electronic control units
• Infotainment system power distribution
• Sensor module voltage regulation
• Body control module circuits

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

Verify the NRND status before finalizing designs, as this indicates the component is not recommended for new designs. Confirm that the HTSOP-J8 package dimensions match your PCB footprint requirements. Ensure the 300 mA output current meets the load demands of your specific application circuit. Check for updated datasheets to confirm any changes in pin configuration or electrical characteristics over time.

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

Select this regulator when a fixed 3.3 V supply is required for automotive-grade systems. The 300 mA output current suits moderate load applications. Consider the 600 mV dropout voltage against your minimum input voltage to ensure proper regulation. The HTSOP-J8 package offers a compact solution for space-constrained boards. Verify thermal performance under expected load conditions to maintain operation within the specified temperature range.

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

This part belongs to ROHM's automotive LDO regulator family, specifically designed for high-reliability vehicle electronics. The BD33HA3 series integrates safety features such as thermal shutdown and soft start. These regulators are engineered to withstand the harsh environmental conditions typical of automotive environments, including wide temperature variations and electrical noise.

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

Check for direct substitutes within the BD33HA3 series with compatible output voltages and currents. Verify package compatibility if considering alternative manufacturers. Ensure any replacement maintains AEC-Q100 qualification for automotive use. Review functional safety support levels if the application requires specific integrity standards.