BD900N1WEFJ-CE2

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

The BD900N1WEFJ-CE2 is an automotive-grade adjustable output Low Dropout (LDO) regulator manufactured by ROHM Semiconductor. It features a maximum withstand voltage of 45V and supports a minimum input voltage of 4.5V, with a maximum input of 42V. The device delivers a maximum output current of 150mA with an output accuracy of ±2.0%. Typical circuit current consumption is 28μA, and the typical dropout voltage is 0.50V at 100mA load. Ripple rejection is rated at 70dB, and load regulation is 0.1% from 0 to 150mA.

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

• Utilizes Nano Cap technology to ensure stable operation even when output capacitors are connected in the nanofarad range.
• Incorporates QuiCur technology to provide high-speed load response capabilities for dynamic power demands.
• Designed specifically for automotive applications requiring direct battery connection with low current consumption.

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

• Automotive systems requiring direct battery connection
• Low current consumption power supplies
• Applications needing small external capacitor sizes

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

Verify the specific suffix CE2 against the official datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and functional safety classification as FS Supportive before integration. Ensure input voltage ranges align with system requirements to prevent exceeding the 45V withstand limit.

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

Select this component when minimizing output capacitance size is critical due to the Nano Cap feature. Choose this model over fixed-output variants if an adjustable voltage rail is required within the 150mA limit. Consider the 28μA quiescent current for battery-powered automotive subsystems where standby drain must be minimized.

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

This part belongs to the BD900N series of automotive LDO regulators. It shares the Nano Cap and QuiCur technologies with other members like the BD900N5W series but differs in output current capacity. The series is designed to support functional safety analysis for automotive use cases.

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

Check the BD900N1WNVF-C for alternative packaging options such as SSOP8. Verify compatibility with the BD900N5W series if higher current capacity is needed, noting the difference in output current ratings between 150mA and 500mA models.