BD450S2EFJ-CE2

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

The BD450S2EFJ-CE2 is a fixed-output low dropout regulator from ROHM Semiconductor, providing a stable 5.0V output with a maximum current of 200mA. It features a typical quiescent current of 40µA and supports an input voltage range from 5.8V to 42V, with a maximum withstand voltage of 45V. The device offers high ripple rejection of 65dB and maintains line and load regulation at 10mV. Packaged in HTSOP-J8, it operates within a temperature range of -40°C to +150°C and includes thermal shutdown and overcurrent protection.

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

• High voltage tolerance up to 45V for direct battery connection
• Low quiescent current design minimizes power consumption
• Integrated thermal shutdown and overcurrent protection circuits

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

• Automotive electronic systems requiring robust voltage regulation
• Battery-powered devices needing extended operational life
• Industrial control units operating in harsh environments

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

Verify the specific suffix CE2 against official ROHM documentation to confirm package type and tape/reel specifications. Confirm AEC-Q100 qualification status if automotive reliability is required. Check for any recent lifecycle notices as this series may have replacement recommendations. Ensure compatibility with existing PCB footprints for the HTSOP-J8 package before finalizing procurement orders.

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

Select this component when a fixed 5.0V output is required with high input voltage capability. It is suitable for applications prioritizing low standby current and compact SMD packaging. Consider alternative packages like SOT-223-4 if higher thermal dissipation or different pin configurations are needed. Verify that the 200mA output current meets the load requirements without exceeding thermal limits.

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

This part belongs to the BD4xxS2-C series of low quiescent regulators designed for automotive use. The series offers fixed outputs of 3.3V or 5.0V with ±2% accuracy. The BD450S2EFJ-CE2 specifically denotes the 5.0V variant in the HTSOP-J8 package. It shares core electrical characteristics with other members of the family but differs in physical footprint and specific ordering suffixes.

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

The BD450M2EFJ-CE2 is documented as a production change model with identical technical specifications. It is recommended for new designs while the S2 version remains available for existing customers. Verify pinout and package dimensions match before substitution.