BD433S5WEFJ-CE2

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

The BD433S5WEFJ-CE2 is a fixed-output low dropout regulator manufactured by ROHM Semiconductor, designed for automotive applications. It provides a stable 3.3 V output with a maximum current capacity of 500 mA. The device features a quiescent current of 38 uA and supports an input voltage range from 4 V to 42 V, with an absolute maximum rating of 45 V. It offers high ripple rejection of 60 dB typical and maintains output accuracy within +/-2%. The regulator operates within a temperature range of -40 C to +150 C and utilizes an HTSOP-J8 surface-mount package.

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

• Includes an enable input function for power management control
• Features low quiescent current consumption for energy efficiency
• Provides high output voltage accuracy of +/-2% for precision regulation

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

• Automotive electronic systems requiring stable 3.3V supply
• Power management circuits in harsh thermal environments
• Embedded systems needing low noise voltage regulation

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 automotive grade requirements and check for functional safety support status if applicable to your design. Confirm RoHS compliance details through the manufacturer's latest datasheet before finalizing procurement orders.

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

Select this component when a fixed 3.3V output is required with moderate current demands up to 500mA. Consider the HTSOP-J8 package for space-constrained PCB layouts. Evaluate the 42V input tolerance against system transient voltages. Compare quiescent current and dropout characteristics against alternative LDOs to ensure optimal efficiency for the specific load profile.

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

This part belongs to the BD4xx series of low dropout regulators from ROHM Semiconductor. These devices are engineered for automotive use, offering robust performance under varying thermal conditions. The series typically includes variants with different output voltages and packages, sharing common architectural features like low static current and high ripple rejection capabilities suitable for sensitive electronics.

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

Check for direct substitutes within the BD433 family or other ROHM automotive LDOs with identical 3.3V output and 500mA current ratings. Verify pinout compatibility and package dimensions (HTSOP-J8) to ensure mechanical interchangeability without redesigning the PCB footprint.