BD950M5WEFJ-CE2

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

The BD950M5WEFJ-CE2 is a fixed output Low Dropout (LDO) regulator from ROHM Semiconductor, designed for automotive applications. It provides a stable 5 V output with a maximum current capacity of 500 mA. The device operates within an input voltage range of 3 V to 42 V and features a typical power supply rejection ratio (PSRR) of 70 dB. Key electrical parameters include a dropout voltage of 680 mV (maximum 1.3 V), line regulation of 0.1%, and load regulation of 0.1%. Quiescent current is specified at 9.5 uA, with an input bias current of 8 uA. It supports a wide operating temperature range from -40°C to +150°C and utilizes an HTSOP-J8 surface-mount package.

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

• Integrates QuiCur technology to ensure high-speed load response capabilities.
• Features an enable input pin for precise control over the output state.
• Designed for direct connection to vehicle battery systems in automotive environments.

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

• Power supplies for Electronic Control Units (ECUs)
• Automotive electronic devices requiring direct battery connection
• Low noise power regulation for sensitive automotive circuits

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/reel specifications. Ensure the application environment remains within the stated -40°C to +150°C operating temperature range. Confirm that the required output current does not exceed the 500 mA limit under all thermal conditions. Check for RoHS compliance documentation if required by your manufacturing standards.

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

Select this component when a fixed 5 V rail is needed for automotive electronics with moderate current demands up to 500 mA. The HTSOP-J8 package suits space-constrained PCB layouts. Consider the 70 dB PSRR for noise-sensitive loads. Compare against the BD950N5WEFJ-CE2 if a lower maximum operating temperature of 125°C is acceptable, or if Nano Cap stability characteristics are preferred over QuiCur response speeds.

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

This part belongs to the BD9xxM5-C series of linear regulators developed by ROHM Semiconductor. The series utilizes QuiCur technology to balance low current consumption with fast transient response. These regulators are specifically engineered for automotive use, supporting high input voltages directly from vehicle batteries while maintaining tight output voltage accuracy.

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

The BD950N5WEFJ-CE2 is a related variant within the same family but differs in technology (Nano Cap vs. QuiCur) and maximum operating temperature (125°C vs. 150°C). Verify functional compatibility before substitution, as the dynamic response characteristics differ between the two technologies.