BA78M18CP-E2

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

The BA78M18CP-E2 is a positive linear voltage regulator from the ROHM BA78M series, housed in a TO-220-3 through-hole package. It provides a fixed 18 V output with a maximum current 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 a temperature range of -40°C to +85°C. Key electrical specifications include a line regulation of 10 mV, load regulation of 20 mV, and a typical power supply rejection ratio (PSRR) of 78 dB at 120 Hz.

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

• Integrated overcurrent protection and thermal shutdown circuits for enhanced reliability.
• High ripple rejection characteristics ensure stable output performance.
• Fixed positive voltage output configuration simplifies circuit design.

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

• General-purpose power supply regulation
• Embedded system voltage conditioning
• Industrial control equipment power management

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

Verify component authenticity against official ROHM documentation due to end-of-life status. Confirm package integrity and pin alignment for TO-220-3 mounting. Check for RoHS compliance markers on available stock. Ensure storage conditions prevent moisture damage prior to soldering. Validate replacement availability if production continuity is required.

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

Select this component when a fixed 18 V output at 500 mA is required in a through-hole format. Consider the 10 W power dissipation limit and thermal management needs. Compare PSRR and regulation specs against alternative regulators if noise sensitivity is critical. Verify input voltage headroom requirements align with the 21 V minimum specification.

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

This part belongs to the BA78M series of medium-current linear regulators by ROHM Semiconductor. It shares functional similarities with other members like the BA78M05CP-E2 but differs in output voltage and specific package variants. The series is designed for applications requiring robust voltage regulation with built-in protection features in standard through-hole packages.

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

BA78M18CP

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

What is the maximum power dissipation for the BA78M18CP-E2?

The maximum power dissipation is 10 W.

Does the BA78M18CP-E2 include protection features?

Yes, it includes overcurrent protection and thermal shutdown circuits.