BD933N5EFJ-CE2

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

The BD933N5EFJ-CE2 is a fixed-output Low Dropout (LDO) regulator from ROHM Semiconductor, designed for automotive applications. It features a 3.3V output with a maximum current of 500mA. The device supports an input voltage range from 3V to 42V and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a typical ripple rejection ratio of 60dB, line regulation of 0.1%, and load regulation of 0.1%. The dropout voltage is typically 700mV, with a maximum of 1.5A noted in some specifications. It utilizes the Nano Cap and QuiCur technologies.

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

• Integrates Nano Cap technology to ensure stability even with small output capacitors in the nanofarad range.
• Incorporates QuiCur technology to provide high-speed load response capabilities.
• Designed specifically for automotive systems requiring direct battery connection.
• Includes protection features such as thermal shutdown and under-voltage lockout.

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

• Automotive electronic control units
• Infotainment system power supplies
• Sensor module power regulation
• Body electronics power distribution

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

Verify the specific suffix CE2 against the manufacturer's latest datasheet to confirm package type and tape/reel specifications. Ensure compatibility with automotive qualification standards required by your application. Cross-reference the part number with official ROHM documentation to avoid confusion with similar variants like the BD933M5EFJ-CE2 which may have different thermal or performance characteristics.

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

Select this component when a stable 3.3V supply is needed for automotive loads up to 500mA. It is suitable for designs where minimizing external capacitor size is critical due to space constraints. Consider its 42V input tolerance for direct battery interfacing. Compare line and load regulation requirements against other LDOs if precision is paramount.

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

This part belongs to the BD933 series of automotive LDO regulators. It shares the Nano Cap and QuiCur feature set with related models but differs in output current and package options. It is distinct from the BD933M5EFJ-CE2 which may offer different thermal performance or operating temperature ranges.

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

Check for pin-compatible alternatives within the BD933 family. Verify that any substitute maintains the 42V input rating and 500mA output capability. Ensure the replacement also supports the required automotive temperature range and includes necessary protection features.