BD25KA5WFP-E2

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

The BD25KA5WFP-E2 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 2.5 V output with a maximum continuous current of 500 mA. The device features a typical power supply rejection ratio (PSRR) of 50 dB and operates within an input voltage range supported by its dropout characteristics. It exhibits a typical dropout voltage of 120 mV, with a maximum specified at 200 mV. Voltage regulation accuracy is maintained at 1%. The component supports surface-mount installation in a TO-252-5 package and functions reliably across an extended temperature range from -40°C to +105°C.

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

• Fixed 2.5 V output voltage with high regulation accuracy
• Capable of delivering up to 500 mA load current
• Low dropout voltage for efficient operation near input limits
• High power supply rejection ratio for noise reduction

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

• Portable battery-powered electronic devices
• Embedded systems requiring stable logic supply rails
• Microcontroller peripheral power management
• Communication modules needing clean DC voltage

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

Verify the complete part number including the suffix E2 to ensure compliance with environmental standards and specific manufacturing lot requirements. Confirm that the TO-252-5 package footprint matches the target PCB design. Check official ROHM documentation for the latest thermal derating curves and recommended external capacitor values to ensure stable operation under varying load conditions.

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

Choose this regulator when a precise 2.5 V rail is required with moderate current demands. The TO-252-5 package offers improved thermal performance compared to smaller SMD options. Ensure the input voltage remains sufficiently above the output to maintain regulation, considering the worst-case dropout voltage. This component is suitable for applications prioritizing line and load regulation stability over ultra-low quiescent current consumption.

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

This component belongs to the BD25KA series of LDO regulators from ROHM Semiconductor. It is part of a broader family offering various fixed output voltages, all sharing similar electrical characteristics and packaging. The series is designed for general-purpose power management in consumer and industrial electronics where reliable voltage stabilization is critical.

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

Direct substitutes within the same series include BD18KA5WFP-E2 (1.8 V), BD12KA5WFP-E2 (1.2 V), and BD10KA5WFP-E2 (1.0 V). These parts share identical pinouts and thermal profiles but differ in output voltage. Verify that the system design can accommodate the alternative voltage level before substitution.