BD450M5FP-CE2

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

The BD450M5FP-CE2 is a fixed-output Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor, designed for automotive applications. It provides a stable 5.0 V output with a maximum current capability of 500 mA. The device features a low quiescent current of 38 µA and supports an input voltage range from 5.5 V to 42 V, with an absolute maximum rating of 45 V. Key electrical parameters include a typical ripple rejection ratio of 60 dB, a line regulation of 10 mV, and a load regulation of 10 mV. The output voltage accuracy is specified at ±2% for the 5.0 V variant. The regulator operates within a temperature range of -40°C to +150°C and utilizes a TO-252-3 package.

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

• Features low quiescent current consumption for efficient power management in battery-connected systems.
• Includes built-in overcurrent protection and thermal shutdown circuits to prevent damage during short circuits or overload conditions.
• Supports ceramic output capacitors, simplifying design and reducing component count.
• Provides high ripple rejection performance to maintain clean output voltage under noisy input conditions.

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

• Automotive electronic systems requiring robust voltage regulation
• Battery-powered devices needing low standby current consumption
• Circuits requiring protection against output shorts and thermal overload

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

Verify the specific suffix and package type when ordering, as variations exist within the BD450 series. Confirm that the required output voltage and current ratings match the application needs. Check for RoHS compliance status if environmental regulations apply. Ensure the supplier provides valid datasheets and authenticity documentation. Cross-reference the part number with official ROHM databases to avoid confusion with similar models like the BD450S5WFP-CE2.

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

Select this component when a fixed 5.0 V output is required with up to 500 mA load capacity. It is suitable for designs where low static current is critical for battery life. Consider the TO-252-3 package for surface-mount assembly. Verify that the input voltage remains within the 5.5 V to 42 V operational range. Ensure the ambient temperature does not exceed the +150°C maximum junction temperature limit.

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

This part belongs to the BD450 series of low quiescent current regulators from ROHM. The series is characterized by high voltage tolerance and integrated protection features. The BD450M5FP-CE2 specifically denotes the 5.0 V fixed output version in the TO-252-3 package. It is distinct from other variants such as the BD450S5WEFJ-CE2 which uses an HTSOP-J8 package. The 'M' in the part number typically indicates the package style and manufacturing line.

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

The BD450S5FP2-C is noted as a production-line change equivalent with identical technical specifications. Designers may consider this substitute for existing projects without modifying the schematic or layout. Verify package compatibility before substitution.