BD00HA3WEFJ-E2

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

The BD00HA3WEFJ-E2 is a positive adjustable low-dropout regulator manufactured by ROHM Semiconductor. It operates within an input voltage range of 4.5 V to 8 V and delivers a maximum output current of 300 mA. The device provides an adjustable output voltage between 1.5 V and 7 V, utilizing an internal reference voltage of 800 mV. Key electrical specifications include a typical dropout voltage of 600 mV and a maximum of 900 mV. Line regulation is specified at 1%, while load regulation is 1.5%. The component functions reliably across an operating temperature range from -25°C to +85°C and is housed in an HTSOP-J8 surface-mount package.

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

• Provides stable positive voltage regulation with adjustable output capabilities for flexible system design.
• Features low dropout characteristics to maintain regulation under minimal input-to-output voltage differentials.
• Incorporates high line and load regulation performance to ensure consistent output stability.

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

• Portable electronic devices requiring efficient power management
• Battery-powered systems needing stable voltage rails
• Embedded circuits with variable input supply conditions

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

Verify the specific suffix E2 against official ROHM documentation to confirm compliance with RoHS directives and lead-free manufacturing standards. Ensure the HTSOP-J8 package footprint matches your PCB layout requirements. Confirm that the 300 mA output current rating aligns with your peak load demands to prevent thermal issues within the specified -25°C to +85°C operating range.

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

Select this component when an adjustable output voltage between 1.5 V and 7 V is required from a 4.5 V to 8 V input source. It is suitable for applications prioritizing moderate current delivery up to 300 mA with tight regulation tolerances. Consider the HTSOP-J8 package for space-constrained surface-mount designs. Evaluate thermal dissipation capabilities given the 2.11 W power dissipation limit.

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

This part belongs to the BD00HA3WEFJ series of low-dropout regulators from ROHM Semiconductor. It shares the same HTSOP-J8 packaging and general regulatory architecture as other members of the family, such as fixed-voltage variants like BD33HA3WEFJ-E2 or higher-current models like BD00HC5WEFJ-E2. The primary distinction lies in its adjustable output configuration compared to fixed-output counterparts.

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

What is the minimum input voltage required for proper regulation?

The minimum input voltage is 4.5 V.

Can the output voltage be set below 1.5 V?

No, the adjustable output voltage range is specified from 1.5 V to 7 V.