BD33HA5MEFJ-ME2

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

The BD33HA5MEFJ-ME2 is a single-output fixed linear low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.3 V output with a maximum current capacity 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 at full load. Designed for automotive applications, it holds AEC-Q100 qualification and functions reliably across an extended temperature range from -40°C to +105°C. The component is housed in an 8-pin HTSOP-J surface-mount package.

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

• Integrated shutdown function for power management
• Built-in thermal shutdown and over-current protection circuits
• Soft start capability to limit inrush current
• High-accuracy voltage regulation suitable for automotive systems

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

• Automotive electronic control units
• In-vehicle infotainment systems
• Dashboard instrumentation modules
• Sensor interface circuits in automotive environments

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. Confirm AEC-Q100 compliance status directly with the manufacturer or authorized distributors. Check for any recent lifecycle changes as this part may be subject to obsolescence notices. Ensure compatibility with existing PCB footprints designated for HTSOP-J8 packages before procurement.

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

Select this component when a fixed 3.3 V rail is required for automotive-grade applications with moderate current demands up to 500 mA. Consider the 4.5 V minimum input voltage constraint during system design. Evaluate the 600 mV dropout voltage against the available supply headroom. Verify that the 8-pin HTSOP-J package fits the mechanical constraints of the target assembly.

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

This LDO belongs to the BD33HA series of high-accuracy regulators designed specifically for automotive use. The series offers various output currents and input voltage ranges to suit different subsystem requirements. The BD33HA5 variant specifically targets applications needing 500 mA output capability while maintaining strict automotive reliability standards and functional safety support capabilities.

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

BD33HA5VEFJ-ME2 is listed as a manufacturer-recommended alternative.