BD33IC0WEFJ-E2

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

The BD33IC0WEFJ-E2 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.3V output with a maximum current capacity of 1A. The device operates within an input voltage range of 2.4V to 5.5V and features high accuracy of ±1.0% at 25°C. Key electrical specifications include a typical dropout voltage of 0.4V at full load, a ripple rejection of 60dB, and a quiescent current of 0.25mA. It incorporates comprehensive protection mechanisms including overcurrent protection, thermal shutdown, and a shutdown function that reduces circuit current to 0µA.

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

• Integrated overcurrent protection and thermal shutdown circuits prevent IC damage during short circuits or overload conditions.
• Features a dedicated shutdown function that reduces operating current to zero when disabled.
• Designed for use with ceramic capacitors to support miniaturization and extended component lifespan.
• Includes soft-start functionality to manage inrush currents during power-up.

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

• Digital home appliances
• Portable electronic devices requiring stable 3.3V logic supplies
• Battery-powered equipment with limited input voltage headroom

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

Verify the complete part number including the suffix -E2 to ensure compliance with specific packaging and environmental standards. Confirm that the application does not require automotive-grade certification, as this standard-grade product is explicitly not recommended for车载 (automotive) equipment. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing design integration.

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

Select this component when a 1A output current is required from a low input voltage source between 2.4V and 5.5V. It is suitable for designs prioritizing high voltage accuracy and low quiescent current. Consider alternative models if higher input voltage tolerance or automotive reliability ratings are necessary, as this part is classified as standard grade.

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

This regulator belongs to the BD33 series of high-accuracy LDO regulators from ROHM Semiconductor. The HTSOP-J8 package allows for compact surface-mount installation. The -E2 suffix typically denotes specific tape-and-reel packaging configurations for automated assembly processes.

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

ROHM recommends the BD33IC0JEFJ as a replacement for new developments due to improved production efficiency. Electrical characteristics remain consistent between production lines. Ensure the substitute matches the HTSOP-J8 footprint and pinout compatibility.