BD450U2EFJ-CE2

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

The BD450U2EFJ-CE2 is a fixed-output low dropout regulator manufactured by ROHM Semiconductor, designed for automotive applications. It provides a stable 5 V output with a maximum current capacity of 200 mA. The device features a typical quiescent current of 40 uA and supports an input voltage range from 5.5 V to 42 V. Key electrical parameters include a typical ripple rejection ratio of 65 dB, a line regulation of 10 mV, and a load regulation of 10 mV. The dropout voltage is typically 160 mV at maximum load, with a maximum rating of 350 mV. The component operates within a temperature range of -40 C to +150 C and is housed in an HTSOP-J8 package.

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

• Low quiescent current consumption for efficient power management
• High withstand voltage capability suitable for automotive battery systems
• Integrated protection circuits including thermal shutdown and overcurrent protection

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

• Automotive electronic control units
• Battery-connected system power supplies
• General purpose voltage regulation in harsh environments

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

Verify the specific suffix CE2 against the official datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and functional safety classification prior to integration. Ensure the selected variant matches the required output voltage accuracy and operating temperature range for the target application environment.

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

Select this component when a fixed 5 V output is required with high input voltage tolerance up to 42 V. Consider the HTSOP-J8 package for surface mount assembly constraints. Evaluate the 200 mA output current limit against peak load requirements. Verify compatibility with ceramic output capacitors as specified in the design guidelines.

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

This part belongs to the BD4xxU2-C series of low dropout regulators from ROHM Semiconductor. The series is characterized by low static current and high voltage resistance, making it suitable for automotive use. The U2 designation typically indicates a specific output voltage configuration within the family, distinct from other variants like M2 or S2 which may differ in package or feature set.

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

Public confirmed substitute part numbers are not available in the provided documentation.