BD50HA5WEFJ-E2

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

The BD50HA5WEFJ-E2 is a positive low-dropout voltage regulator manufactured by ROHM Semiconductor, designed for surface-mount applications in the HTSOP-J8 package. It provides a fixed 5 V output with a maximum continuous current of 500 mA. The device operates within an input voltage range of 4.5 V to 8 V and maintains stable performance across a temperature range of -25°C to +85°C. Key electrical characteristics 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 rated at 1.5%. The quiescent input bias current is 900 µA, and the unit supports power dissipation up to 2.11 W.

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

• Integrated overcurrent protection circuitry prevents IC damage during output short-circuit conditions.
• Built-in thermal shutdown mechanism safeguards the component against overheating caused by excessive loads.
• Compatible with ceramic capacitors to facilitate compact equipment design and extended operational lifespan.

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

• Digital home appliances requiring stable 5V logic supply
• Portable electronic devices utilizing single-cell battery inputs
• General-purpose power management circuits in consumer electronics

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

Verify the complete part number including the suffix E2 to ensure compliance with RoHS standards and lead-free manufacturing processes. Confirm that the HTSOP-J8 package variant matches the intended PCB footprint and soldering profile requirements. Cross-reference the specific revision level with official ROHM documentation to guarantee consistency in electrical parameters and pin configuration before finalizing procurement orders.

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

Select this regulator when a fixed 5V output is required from an input source between 4.5V and 8V. The 500mA current capacity suits moderate load applications where space constraints favor the small HTSOP-J8 form factor. Consider the 600mV dropout voltage for efficiency optimization in low-voltage differential scenarios. Ensure the application environment remains within the -25°C to +85°C operating range for reliable performance.

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

This component belongs to the BDxxHA5WEFJ series of automotive-grade LDO regulators from ROHM Semiconductor. The series shares common architectural features such as high reliability and compact packaging. Variants within this family differ primarily in their fixed output voltage settings, ranging from lower voltages like 1.5V to higher levels like 7V, while maintaining similar current handling and protection capabilities.

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

Direct substitutes within the same series include BD15HA5WEFJ-E2 (1.5V), BD25HA5WEFJ-E2 (2.5V), BD70HA5WEFJ-E2 (7.0V), and BD50HC5WEFJ-E2 (5.0V, 1.5A). When replacing, verify that the alternative part's output current rating meets or exceeds the original design requirements and that the package dimensions remain identical for mechanical compatibility.