BD18KA5FP-E2

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

The BD18KA5FP-E2 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 1.8 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 200 mA, with a maximum of 200 mV. 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 an operating temperature range from -40°C to +105°C.

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

• Integrated shutdown function reduces circuit current to 0 µA when disabled.
• Built-in overcurrent protection safeguards against output short circuits.
• Thermal shutdown circuit prevents damage during overload conditions.

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

• Local power supplies for consumer electronics
• Portable devices requiring compact power management
• Battery-powered equipment needing efficient voltage regulation

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

Verify the specific suffix E2 indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the TO-252-3 package variant matches design requirements. Ensure input voltage remains within the 2.3 V to 5.5 V range to maintain specified performance. Check for any automotive or industrial qualification notes if required for the target application environment.

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

Select this component when a fixed 1.8 V rail is needed with moderate current demands up to 500 mA. The TO-252-3 package offers thermal advantages over smaller SOT packages. Consider the 50 dB ripple rejection for noise-sensitive analog sections. Verify that the external capacitor requirements align with the stability specifications provided in the official datasheet.

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

This part belongs to the BD18KA5 series of secondary LDO regulators designed for local power supply applications. It is part of ROHM's portfolio aimed at miniaturization and energy efficiency. The series includes various fixed output voltages and packaging options to support diverse electronic designs.

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

Consult official substitution guides for compatible parts within the same series or family. Verify pin compatibility and electrical parameters before replacing. No direct substitute part numbers are confirmed in the provided data.