BD433U2EFJ-CE2

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

The BD433U2EFJ-CE2 is a positive fixed-output Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.3 V output with a maximum continuous current of 200 mA. The device features a typical quiescent current of 40 µA and a ripple rejection ratio of 65 dB. It operates within an input voltage range supporting up to 45 V withstand capability, with a typical dropout voltage of 200 mV. The component is housed in an HTSOP-J8 surface-mount package and is qualified to AEC-Q100 standards for automotive applications, functioning reliably between -40 °C and +150 °C.

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

• Automotive-grade reliability certified under AEC-Q100 standards for harsh environment operation
• Low static current consumption design suitable for battery-connected systems
• Integrated protection circuits including over-current and thermal shutdown

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

• Automotive electronic control units requiring stable 3.3 V power rails
• Battery-powered automotive modules needing low quiescent current regulation
• Infotainment and instrument cluster power distribution networks

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

Verify the specific suffix CE2 against the official ROHM datasheet to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the required automotive qualification level. Cross-reference the manufacturer's latest documentation for any lifecycle status changes or recommended replacement models before finalizing procurement orders.

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

Select this component when a fixed 3.3 V output is required with a 200 mA load capacity in automotive environments. The HTSOP-J8 package offers a compact footprint for space-constrained PCB layouts. Consider the 40 µA quiescent current for efficiency optimization in always-on circuits. Verify that the input voltage remains within the specified limits to maintain regulation and prevent damage.

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

This LDO belongs to the BD433 series from ROHM, designed specifically for automotive power management. The series emphasizes low power consumption and high reliability. The BD433U2EFJ-CE2 variant utilizes the HTSOP-J8 package, distinguishing it from other pin-compatible or functionally similar variants in the family that may use different packages like SOT-223.

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

Consult the official ROHM database for direct pin-to-pin replacements or upgraded versions within the BD433 series. Verify that any substitute maintains the same 3.3 V output, 200 mA rating, and AEC-Q100 qualification.