BD4269EFJ-CE2

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

The BD4269EFJ-CE2 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 5 V output with a maximum continuous current of 300 mA. The device operates within an input voltage range of 5.5 V to 45 V and features a typical dropout voltage of 250 mV, with a maximum of 500 mV. Key electrical parameters include a quiescent current of 70 uA, line regulation of 10 mV, and load regulation of 10 mV. It is housed in an HTSOP-J8 surface-mount package and supports an operating temperature range from -40°C to +125°C.

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

• Automotive-grade qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated thermal shutdown and overcurrent protection circuits to safeguard against abnormal operating conditions.
• Low quiescent current consumption design suitable for applications requiring efficient power management.

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

• Automotive electronic systems requiring robust voltage regulation under wide input voltage variations.
• Power distribution networks in vehicles where high withstand voltage capability is necessary.
• Embedded control modules utilizing automotive-grade components for enhanced durability.

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

Verify the component status before procurement as it is marked NRND (Not Recommended for New Designs). Confirm that existing inventory meets project requirements since new design adoption is discouraged. Check datasheet revisions to ensure compatibility with current manufacturing processes. Validate package dimensions and pin configurations against PCB layout specifications. Ensure supply chain sources provide authentic parts with traceable documentation.

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

Select this regulator for designs already established around the BD4269EFJ-C series to maintain consistency. Consider the 300 mA output limit when sizing for load requirements. Evaluate the 45 V input tolerance against system transient voltages. Assess thermal performance given the HTSOP-J8 package constraints. Review alternative models if new design initiation is required due to end-of-life status.

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

This component belongs to the BD4269EFJ-C series of automotive LDO regulators. It serves as a successor or variant designed for production efficiency while maintaining identical technical specifications to previous versions. The series targets high-voltage automotive applications, offering fixed output options like the 5 V variant documented here.

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

The BD4269UEFJ-CE2 is a recommended alternative within the same family, offering similar specifications but with additional reset circuit functionality. Verify pin-to-pin compatibility and functional equivalence before substitution. Consult official ROHM documentation for detailed comparison of features and electrical characteristics between these part numbers.