BD15HA3WEFJ-E2

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

The BD15HA3WEFJ-E2 is a fixed positive low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 1.5 V output with a maximum continuous current of 300 mA. The device operates within an input voltage range of 4.5 V to 8 V and features a typical dropout voltage of 600 mV, reaching a maximum of 900 mV. Line regulation is specified at 1%, while load regulation is 1.5%. The unit maintains a voltage accuracy of 1% and draws an input bias current of 900 uA. It supports surface-mount installation in an HTSOP-J8 package and functions reliably across a temperature range of -25°C to +85°C.

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

• Delivers a fixed 1.5 V regulated output suitable for precision analog and digital circuits.
• Maintains stable performance under varying load conditions with defined line and load regulation specifications.
• Operates efficiently with low quiescent current consumption to minimize power waste.

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

• Power supply stages for automotive electronic control units
• Voltage regulation for portable battery-operated devices
• Biasing circuits for sensors and microcontrollers

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

Verify the complete part number including the suffix to ensure correct output voltage and current ratings. Confirm RoHS compliance status through official manufacturer documentation before integration. Check the specific datasheet revision for any updates to electrical characteristics or thermal limits. Ensure the ordering quantity aligns with the manufacturer's standard packaging requirements to avoid handling discrepancies.

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

Select this component when a fixed 1.5 V rail is required with moderate current demands up to 300 mA. The HTSOP-J8 package offers a compact footprint for space-constrained designs. Consider the 4.5 V minimum input requirement to ensure sufficient headroom for the desired dropout performance. Evaluate thermal dissipation capabilities based on the maximum power dissipation rating of 2.11 W during high-load operations.

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

This regulator belongs to the BD15 series of LDO voltage controllers from ROHM Semiconductor. The series includes variants with different output voltages and current capacities, such as the BD15IA5WEFJ-E2 and BD15HA5WEFJ-E2. These components share similar packaging and operational principles but differ in specific electrical parameters like maximum output current and reference voltage stability.

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

Direct substitutes include BD15HA3WEFJ and BD18HA3WEFJ-E2, provided the voltage tolerance and current requirements match the design constraints. Verify pin compatibility and thermal characteristics before swapping components in existing layouts.