BD25KA5FP-E2

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

The BD25KA5FP-E2 is a positive fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 2.5 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%. Designed for surface-mount installation, it utilizes a TO-252-3 package and supports an operating temperature range from -40°C to +105°C.

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

• Integrated overcurrent protection and thermal shutdown circuits prevent IC damage during short-circuit or overload conditions.
• Low saturation design ensures stable operation with minimal voltage drop between input and output terminals.
• High ripple rejection capability effectively suppresses power supply noise for clean local power delivery.

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

• Local power supplies for consumer electronics such as HDDs and PCs
• Power regulation in DVD players and TV systems
• General-purpose low-noise linear regulation in portable devices

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

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm compliance with current environmental standards and pin compatibility. Ensure the ordering code matches the required TO-252-3 package configuration. Cross-reference the part number with official ROHM documentation to validate availability and revision status before finalizing procurement decisions.

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

Select this component when a fixed 2.5 V rail is required with up to 500 mA load current. It is suitable for applications demanding low dropout performance and high ripple rejection. Consider the TO-252-3 package for thermal management needs. Verify that the input voltage remains within the 2.3 V to 5.5 V range for optimal regulation accuracy.

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

This part belongs to the BD25KA5 series of secondary LDO regulators designed for compact, energy-efficient systems. The series emphasizes small form factors while delivering stable power for local circuitry. It serves as a standard-grade solution for non-automotive applications requiring reliable linear regulation with built-in safety protections.

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

Consult the official ROHM datasheet for direct pin-compatible substitutes within the same series. Verify that any alternative part maintains identical output voltage, current rating, and package dimensions. Confirm functional equivalence regarding protection features and thermal characteristics before implementation.