BD4269UEFJ-CE2

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

The BD4269UEFJ-CE2 is a low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor, designed for automotive applications. It features a fixed 5 V output with a maximum output current of 300 mA and operates within an input voltage range of 5.5 V to 45 V. The device exhibits a typical quiescent current of 70 uA and supports a maximum power dissipation of 960 mW. It utilizes an HTSOP-J8 package and complies with AEC-Q100 Grade 1 standards, functioning reliably across a temperature range of -40°C to +125°C.

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

• Integrates dual reset circuits for monitoring IC output voltage drops and input supply voltage reductions.
• Features adjustable detection voltages via external resistors and adjustable recovery delay times using external capacitors.
• Utilizes PDMOS output transistors to achieve low dropout voltage characteristics suitable for ceramic capacitors.

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

• Automotive electronic systems requiring high-voltage tolerance
• Circuits needing integrated power-on reset functionality
• Low-power automotive modules requiring minimal standby current consumption

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

Verify the specific suffix CE2 against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure that the HTSOP-J8 package dimensions align with your PCB layout requirements. Cross-reference the AEC-Q100 Grade 1 qualification data for automotive reliability standards before finalizing component selection for production.

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

Select this component when a fixed 5 V rail is required alongside integrated reset monitoring in a high-voltage environment. The 45 V input tolerance allows direct connection to standard automotive battery lines without pre-regulation. Consider the 300 mA current limit and thermal dissipation capabilities relative to your system's load profile and ambient operating conditions.

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

This part belongs to ROHM's automotive-grade LDO series, specifically engineered for high-voltage tolerance and functional safety support. It replaces earlier variants like the BD4269EFJ-C while maintaining identical technical specifications. The design focuses on reducing system standby current through ultra-low quiescent operation and simplifying board space by integrating reset logic.

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

The BD4269EFJ-C is documented as a production line variant with no differences in guaranteed characteristics. Designers initiating new projects are advised to select the BD4269UEFJ-CE2 model directly. Verify pin compatibility and thermal performance if substituting from other LDO families.