BA78M18FP-E2

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

The BA78M18FP-E2 is a fixed-output linear voltage regulator from the ROHM BA78M series, housed in a surface-mount TO-252-3 package. It provides a stable 18 V output with a maximum current capacity of 500 mA. The device operates within an input voltage range of 21 V to 33 V and supports a power dissipation of 10 W. It functions reliably across an extended temperature range from -40 °C to +85 °C. Key electrical characteristics include a line regulation of 10 mV, load regulation of 20 mV, and a typical power supply rejection ratio of 78 dB.

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

• Integrated overcurrent protection circuitry prevents damage during fault conditions.
• Built-in thermal shutdown mechanism safeguards the component against excessive heat generation.
• High ripple rejection capability ensures clean output voltage stability.

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

• General-purpose electronic circuits requiring regulated DC power
• Embedded systems utilizing surface-mount assembly processes
• Industrial control modules operating in wide temperature environments

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

Verify the specific suffix E2 for RoHS compliance status before procurement. Confirm that the TO-252-3 package matches your PCB footprint requirements. Check current availability as this component may be subject to end-of-life notices or discontinuation by the manufacturer. Ensure input voltage constraints are strictly observed to maintain safe operation.

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

Select this regulator when a fixed 18 V output is required in a compact surface-mount form factor. The TO-252-3 package offers adequate thermal performance for moderate power dissipation up to 10 W. Consider the 500 mA current limit for load requirements. Verify that the minimum input voltage of 21 V aligns with your system's power supply capabilities.

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

This component belongs to the BA78M series of linear regulators manufactured by ROHM Semiconductor. The series includes various fixed output voltages and utilizes both through-hole and surface-mount packages. The BA78M18FP-E2 specifically represents the surface-mount variant designed for automated assembly processes while maintaining standard 78-series regulatory performance characteristics.

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

BA78M18FP is listed as an alias part number for this component. No other cross-referenced substitute part numbers are confirmed in the provided documentation.