BD15KA5FP-E2

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

The BD15KA5FP-E2 is a positive fixed-output low-dropout regulator manufactured by ROHM Semiconductor. It provides a stable 1.5 V output with a maximum current capacity of 500 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 120 mV at 0.2 A load. It offers high ripple rejection of 50 dB and maintains voltage regulation accuracy within ±1%. The component is housed in a TO-252-3 surface-mount package and supports operation across a temperature range from -40°C to +105°C.

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

• Integrated thermal shutdown and overcurrent protection circuits prevent damage during fault conditions.
• Low saturation voltage design enables efficient power management in battery-operated applications.
• High ripple rejection ratio ensures clean power delivery for sensitive local power supplies.

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

• Local power supplies for consumer electronics such as HDDs and PCs
• Power regulation for automotive audio systems
• Voltage regulation for TV internal circuitry

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

Verify the complete part number including the suffix to ensure correct packaging and compliance status. Confirm that the application does not require automotive qualification, as this standard-grade product is explicitly noted as unsuitable for vehicle equipment. Check datasheet specifications for thermal dissipation requirements relative to the TO-252-3 package constraints.

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

Select this component when a fixed 1.5 V rail is required with up to 500 mA load capability. It is suitable for designs needing compact SMD packaging and wide operating temperature ranges. Consider alternative pinouts if higher current or adjustable output is needed, as this model is strictly fixed-voltage.

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

This regulator belongs to the BD15KA5 series of secondary LDO regulators designed for miniaturization and energy efficiency. The series includes various output voltages and packages, offering flexibility for diverse electronic devices while maintaining consistent performance characteristics like low noise and stability.

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

Compatible substitutes include other ROHM models from the same family with different fixed output voltages, such as BD12KA5FP-E2 (1.2 V), BD18KA5FP-E2 (1.8 V), BD25KA5FP-E2 (2.5 V), and BD30KA5FP-E2 (3.0 V). These parts share identical pinouts, current ratings, and package types.