BD900M5WFP-CE2

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

The BD900M5WFP-CE2 is a low-dropout linear regulator from ROHM Semiconductor, designed for automotive applications. It features an adjustable output voltage ranging from 4.9 V to 5.1 V with a maximum output current of 500 mA. The device operates within an input voltage range of 3 V to 42 V and supports a wide operating temperature range from -40°C to +125°C. Key electrical parameters include a typical power supply rejection ratio (PSRR) of 70 dB, a reference voltage of 650 mV, and an input bias current of 8 µA. Dropout voltage is specified at 740 mV typically, with a maximum of 1.4 V. Line and load regulation are both rated at 0.1%. The component is housed in a TO-252-5 surface-mount package.

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

• Integrates QuiCur technology to provide high-speed load response capabilities for stable performance under dynamic conditions.
• Includes an integrated output shutdown function to minimize power consumption when the system is inactive.
• Features built-in thermal shutdown and over-current protection mechanisms to ensure operational safety.

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

• Power supply circuits in automotive systems requiring direct battery connection
• Voltage regulation for electronic control units (ECUs)
• Infotainment and instrument cluster power management

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

Verify the specific suffix CE2 against the manufacturer's official datasheet to confirm pinout compatibility and functional specifications. Ensure that the TO-252-5 package dimensions align with your PCB footprint requirements. Confirm RoHS compliance status through the latest product specification documents before finalizing procurement decisions.

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

Select this component for designs requiring adjustable output voltages within the 4.9 V to 5.1 V range and robust automotive-grade reliability. The 500 mA output capacity suits moderate load applications. Consider the 70 dB PSRR for noise-sensitive environments. Verify that the input voltage does not exceed the 42 V maximum limit during transient events.

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

This part belongs to the BD9xxM5-C series of QuiCur automotive LDO regulators. These devices utilize a specialized topology to achieve low quiescent current while maintaining high precision. The series is engineered for durability in harsh automotive environments, supporting functional safety analysis as an FS supportive product.

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

Consult the official ROHM replacement guide for verified substitutes. Cross-reference pinouts and electrical ratings carefully. Generic equivalents may lack the specific QuiCur performance characteristics or automotive qualification required for this application.