BD433S2EFJ-CE2

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

The BD433S2EFJ-CE2 is a fixed-output low dropout (LDO) regulator from ROHM Semiconductor, designed for automotive applications. It provides a stable 3.3V output with a maximum current of 200mA. The device features a high withstand voltage of up to 45V and operates within an input voltage range of 4.3V to 42V. Key electrical specifications include a typical quiescent current of 40µA, a ripple rejection ratio of 65dB, and a typical dropout voltage of 200mV. Output voltage accuracy is maintained at ±2%. It supports operation temperatures from -40°C to +150°C and utilizes an HTSOP-J8 package.

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

• High withstand voltage capability up to 45V for direct battery connection systems
• Low quiescent current consumption for extended battery life in automotive environments
• Integrated overcurrent and thermal protection circuits for enhanced reliability

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

• Automotive electronic control units requiring stable 3.3V power
• Battery-connected systems needing low standby current
• Noise-sensitive automotive sensors and modules

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

Verify the specific suffix CE2 matches the required packaging and quality standards for your production line. Confirm that the HTSOP-J8 package dimensions align with your PCB footprint design. Ensure compatibility with RoHS directives if applicable to your region. Cross-reference the datasheet revision date to guarantee access to the latest electrical characteristics and mechanical drawings 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 200mA. It is suitable for designs prioritizing low static current and high voltage tolerance. Consider alternative packages like SOT-223-4 if board space constraints differ. Verify that the input voltage range of 4.3V to 42V covers your system's operational extremes without exceeding the 45V absolute maximum rating.

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

This part belongs to the BD4xxS2-C series of low quiescent current regulators. The series is engineered for automotive use, offering robust performance under varying temperature conditions. It shares core architectural similarities with other members like the BD433S2FP3-CE2 but differs in package type. The series emphasizes efficiency and durability for critical vehicle electronics.

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

The BD433S2FP3-CE2 serves as a pin-compatible alternative in the SOT-223-4 package. Both parts share identical electrical specifications and functionality. Verify package compatibility during substitution. No functional changes are indicated by the suffix difference alone.