BD33HA5WEFJ-E2

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

The BD33HA5WEFJ-E2 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable positive output voltage of 3.3 V with a maximum continuous output current capability of 0.5 A. The device operates within an input voltage range from 4.5 V to 8 V. Key electrical parameters include a typical dropout voltage of 600 mV and a maximum of 900 mV at full load. Line regulation is specified at 1%, while load regulation is 1.5%. The quiescent input bias current is 900 uA. The component supports power dissipation up to 2.11 W and functions reliably across an operating temperature range of -25 C to +85 C.

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

• Delivers a precise fixed 3.3 V output with high accuracy for sensitive digital circuits.
• Maintains stable regulation under varying load conditions with minimal voltage drop.
• Operates efficiently with controlled quiescent current consumption in standard applications.

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

• Power supply stages for portable electronic devices requiring 3.3 V logic levels
• Voltage regulation for microcontroller units and embedded systems
• General-purpose linear regulation in consumer electronics hardware

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

Verify the specific suffix E2 against official ROHM documentation to confirm compliance with current manufacturing standards and environmental directives. Ensure the HTSOP-J8 package variant matches the target PCB footprint requirements. Cross-reference the datasheet revision date to validate thermal characteristics and electrical tolerances prior to integration into final designs.

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

Select this regulator when a compact solution is needed for 3.3 V rails with moderate current demands up to 500 mA. The HTSOP-J8 package offers a balance between thermal performance and board space efficiency. Consider the 4.5 V minimum input requirement to ensure sufficient headroom for the desired dropout voltage under all operating conditions.

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

This component belongs to the BD33HA5WEFJ series of LDO regulators designed for general-purpose power management. It is part of ROHM's portfolio of PMICs focused on providing reliable, low-noise voltage sources for commercial and industrial applications. The series emphasizes stability and ease of use in standard surface-mount assembly processes.

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

Publicly confirmed substitute part numbers are not available in the provided reference data. Verify compatibility with alternative LDOs based on pinout, voltage, and current specifications through official manufacturer cross-reference tools.