BD933M5WEFJ-CE2

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

The BD933M5WEFJ-CE2 is a fixed-output Low Dropout (LDO) regulator from ROHM Semiconductor's QuiCur automotive series. It provides a stable 3.3V output with a maximum current of 500mA. The device supports an input voltage range from 3V to 42V and features a typical dropout voltage of 680mV. Key electrical parameters include a ripple rejection ratio of 70dB, line regulation of 0.1%, and load regulation of 0.1%. It operates within a temperature range of -40°C to +150°C and consumes a quiescent current of 9.5µA.

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

• Integrates QuiCur technology for enhanced power management response performance in automotive environments.
• Includes comprehensive protection mechanisms such as thermal shutdown, over-current protection, and under-voltage lockout.
• Features an enable input pin that allows for precise control of the output state via shutdown functionality.

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

• Power supply circuits for automotive systems directly connected to battery lines.
• Voltage regulation for electronic control units requiring low standby current.
• Backend power distribution in vehicle infotainment and instrumentation modules.

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

Verify the specific suffix CE2 against the official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with AEC-Q100 automotive qualification requirements if functional safety analysis is required. Cross-reference the HTSOP-J8 footprint dimensions during PCB layout to prevent assembly errors.

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

Select this component when a fixed 3.3V rail is needed with high input voltage tolerance up to 42V. The low quiescent current makes it suitable for battery-backed applications where energy conservation is critical. Verify that the 500mA output capacity meets the load requirements and that the HTSOP-J8 package fits the available board space.

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

This part belongs to the BD9xxM5-C series of linear regulators designed specifically for automotive use. The series utilizes QuiCur technology to optimize transient response while maintaining low power consumption. These devices are engineered to withstand harsh automotive electrical environments and support functional safety analysis protocols.

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

Check for BD933M5WFP-CE2 if a TO-252-5 package is preferred instead of HTSOP-J8. Verify BD933N5WEFJ-CE2 if Nano Cap technology is required for different stability characteristics. Confirm that substitute parts maintain the same 3.3V fixed output and 500mA current rating.