BD450S5FP2-CE2

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

The BD450S5FP2-CE2 is an automotive-grade fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 5.0 V output with a maximum current capacity of 500 mA. The device operates within an input voltage range of 5.5 V to 42 V and features a typical quiescent current of 38 µA. Key electrical specifications include a typical dropout voltage of 200 mV at 300 mA, a ripple rejection ratio of 60 dB, and line/load regulation of 10 mV. It is housed in a TO-263-3 surface-mount package and supports an operating temperature range from -40°C to +150°C.

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

• Integrated overcurrent protection and thermal shutdown circuits prevent IC damage during short circuits or overload conditions.
• Compatible with ceramic output capacitors, simplifying design and reducing component count.
• Optimized for low static current consumption to minimize power loss in battery-connected systems.

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

• Automotive electronic control units requiring stable 5V logic supply
• Battery-powered systems needing reduced standby current consumption
• Industrial modules utilizing ceramic output filtering

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

Verify the specific suffix CE2 against official ROHM documentation to confirm packaging and tape-and-reel specifications. Ensure compatibility with AEC-Q100 automotive standards if required for your application. Cross-reference the part number with the latest datasheet revision to confirm functional equivalence with previous manufacturing lines, such as the BD450M5FP2-C series, which shares identical technical guarantees.

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

Select this component when a fixed 5.0 V output is required with high input voltage tolerance up to 42 V. It is suitable for designs prioritizing low quiescent current and robust protection features like thermal and overcurrent shutdown. The TO-263-3 package offers efficient heat dissipation for continuous 500 mA operation. Verify that the system can accommodate the specified minimum input voltage of 5.5 V to maintain regulation.

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

This LDO belongs to the BD450 series designed for automotive applications. It serves as a successor or production-line variant of the BD450M5FP2-C, maintaining identical performance characteristics while potentially differing in manufacturing origin. The series is engineered for reliability in harsh environments, featuring high withstand voltage and wide operating temperature ranges suitable for under-hood and chassis electronics.

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

The BD450M5FP2-C is documented as having identical technical specifications and is recommended for new designs. Verify pinout and package compatibility before substitution. No other direct substitutes are confirmed in the provided data.