BD900N5FP-CE2

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

The BD900N5FP-CE2 is a low-dropout (LDO) linear regulator from ROHM Semiconductor, designed for automotive applications. It features an adjustable output voltage with ±2.0% accuracy and supports a maximum output current of 0.5 A. The device operates within an input voltage range of 4.5 V to 42 V and withstands up to 45 V. Key electrical parameters include a typical dropout voltage of 0.38 V at 0.3 A, a ripple rejection ratio of 60 dB, and a quiescent current of 25 µA. It utilizes Nano Cap™ technology for stability with small output capacitors and includes thermal shutdown and overcurrent protection.

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

• Utilizes Nano Cap™ technology to ensure stable operation even with nanofarad-range output capacitors.
• Incorporates QuiCur™ technology to provide high-speed load response capabilities.
• Includes built-in thermal shutdown and overcurrent protection circuits for enhanced reliability.

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

• Automotive power systems requiring direct battery connection
• Electronic control units (ECUs) in vehicles
• Infotainment system power distribution

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

Verify the specific suffix CE2 against official ROHM documentation to confirm package type and compliance status. Ensure the ordering information matches the required tape-and-reel quantity. Cross-reference the datasheet revision date to validate technical specifications before integration into production designs.

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

Select this component when designing automotive circuits that require a robust LDO with high input voltage tolerance up to 42 V. The adjustable output allows flexibility in setting precise voltage levels. Consider the TO-252-5 package for surface-mount assembly and verify thermal management requirements based on the expected load current and ambient temperature conditions.

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

This part belongs to the BD900N series of automotive-grade LDO regulators. It shares functional similarities with other models in the family but is distinguished by its specific 500 mA output capability and TO-252-5 packaging. The series is characterized by low quiescent current and compatibility with small ceramic capacitors due to proprietary stabilization technologies.

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

Check for pin-compatible alternatives within the BD900N series or other ROHM automotive LDOs offering similar current ratings and input voltage ranges. Verify that any substitute maintains the same package footprint and thermal characteristics to ensure seamless board replacement without redesign.