BD450M2WFP3-CE2

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

The BD450M2WFP3-CE2 is a fixed-output low dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a 5 V output with a maximum current of 200 mA. The device features a typical quiescent current of 40 µA and a ripple rejection ratio of 65 dB. It operates within an input voltage range of 5.5 V to 42 V, with a maximum withstand voltage of 45 V. The component exhibits a typical dropout voltage of 160 mV at 100 mA and maintains an output voltage accuracy of ±2.0%. It is housed in a SOT-223-4 package and supports an operating temperature range from -40°C to +150°C.

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

• Offers high voltage tolerance up to 45 V for direct battery connection applications
• Maintains low standby power consumption with a circuit current of 40 µA
• Includes built-in overcurrent protection and thermal shutdown circuits

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

• Automotive systems requiring direct battery connection
• Power supply stages for electronic control units
• Battery-operated devices needing extended standby life

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

Verify the specific suffix CE2 corresponds to the required packaging configuration before ordering. Confirm that the fixed 5.0 V output aligns with system requirements, as other variants in the series offer different voltages. Ensure compatibility with the SOT-223-4 footprint during PCB layout. Check for AEC-Q100 qualification status if automotive functional safety analysis is required for the final assembly.

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

Select this component when a fixed 5 V rail is needed with minimal quiescent current draw. The SOT-223-4 package suits surface-mount designs requiring moderate heat dissipation. Consider the 45 V absolute maximum rating for robustness against load dump conditions. Verify that the 200 mA output current meets the peak load demands of the downstream circuitry without exceeding thermal limits.

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

This part belongs to the BD450M2-C series of LDO regulators designed for automotive use. The series offers fixed outputs of 3.3 V or 5.0 V with ±2.0% accuracy. These regulators are engineered to reduce standby current in systems directly connected to vehicle batteries. The family includes variants with and without shutdown functions, all supporting ceramic output capacitors for stability.

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

Does the BD450M2WFP3-CE2 include a shutdown function?

No, the BD450M2WFP3-CE2 does not have a shutdown function. Variants with shutdown capabilities are designated with different suffixes in the BD4xxM2-C series.

What type of output capacitor is supported?

The device supports the use of ceramic capacitors for phase compensation, eliminating the need for tantalum or electrolytic capacitors.