DI78M18D1

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

The DI78M18D1 is a positive fixed voltage linear regulator from Diotec Semiconductor, designed for commercial and industrial applications. It provides a nominal output voltage of 18 V with a tolerance of ±4%. The device supports an output current up to 1 A and operates with an input voltage up to 36 V. It features thermal overload protection and short-circuit protection. The component is housed in a TO-252AA (D-Pak) package and is rated for junction temperatures up to 150°C.

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

• Integrated thermal overload protection
• Short-circuit proof operation
• Fixed 18 V output voltage

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

• High efficiency linear regulators
• Active SCSI termination regulator
• Post regulators for switch mode DC-DC converters
• Battery backed-up regulated supply

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

Verify the specific part number against official Diotec documentation to confirm compliance with RoHS and REACH standards. Ensure that the selected variant matches the required operating temperature range and package type. Confirm availability of the standard commercial grade or any specialized automotive grades if applicable to your design requirements.

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

Select this component when a stable 18 V output is required at currents up to 1 A. Consider the maximum input voltage limit of 36 V and the dropout voltage characteristics. Evaluate the thermal resistance values to ensure adequate heat dissipation within the specified ambient temperature range of -40°C to +85°C.

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

This device belongs to the DI78MxxD1 series of positive fixed voltage regulators. The series offers various fixed output voltages including 5.0 V, 6.0 V, 8.0 V, 9.0 V, 12 V, 15 V, and 18 V. All variants share similar mechanical and electrical protection features while differing in their specific output voltage settings.

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

Other members of the DI78MxxD1 series such as DI78M15D1 or DI78M12D1 may serve as alternatives if different output voltages are acceptable. Verify pinout compatibility and thermal performance before substitution.