BD900N5WEFJ-CE2

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

The BD900N5WEFJ-CE2 is a Nano Cap, QuiCur adjustable output LDO regulator manufactured by ROHM Semiconductor. It features a 500 mA output current capability with an input voltage range of 3 V to 42 V. The device provides an adjustable output voltage from 1 V to 18 V, utilizing a 650 mV reference voltage. Key electrical parameters include a typical dropout voltage of 700 mV and a PSRR of 60 dB. It operates within a temperature range of -40°C to +125°C and holds AEC-Q100 qualification.

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

• Utilizes Nano Cap topology for stable operation with nanofarad-range output capacitors
• Incorporates QuiCur technology to deliver high-speed load response characteristics
• Designed for automotive applications with direct battery connection capabilities
• Supports functional safety analysis as an FS supportive product

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

• Automotive power systems requiring low current consumption
• Electronic devices connected directly to vehicle batteries
• Applications necessitating high precision output regulation
• Systems requiring fast transient load response performance

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

Verify the specific suffix CE2 against official ROHM documentation to confirm package type and tape/reel specifications. Ensure compatibility with HTSOP-J8 mounting requirements. Confirm AEC-Q100 qualification status matches project reliability standards. Check functional safety classification if automotive deployment is intended. Validate input voltage limits against system supply rails prior to integration.

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

Select this component when designing automotive circuits that demand low quiescent current alongside moderate output capacity. The adjustable output feature allows flexibility in setting precise voltage levels between 1 V and 18 V. Consider the Nano Cap capability if minimizing external capacitor size is a priority. Evaluate the 60 dB PSRR requirement against noise sensitivity needs in the target application environment.

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

This part belongs to the BD9xxN5-C series of LDO regulators, specifically designed for automotive use. It represents a newer generation of power management ICs focusing on efficiency and stability with minimal external components. The series integrates advanced technologies to address the stringent requirements of modern vehicle electronics while maintaining compact form factors suitable for space-constrained PCB layouts.

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

Direct substitutes within the same family include BD900N5WFP-CE2, which offers similar electrical characteristics but utilizes a TO-252-5 package instead of HTSOP-J8. Designers must verify pinout compatibility and thermal dissipation differences when swapping between these package variants. Other series members may require circuit redesign due to differing current ratings or voltage ranges.