LD1084D2T-R

Overview

The LD1084D2T-R is a low-drop positive voltage regulator from the STMicroelectronics LD1084 series, designed to deliver up to 5A of output current. It features an adjustable output voltage range and is housed in a D2PAK surface-mount package. The device guarantees a maximum dropout voltage of 1.5V at full load and includes internal power and thermal limiting for protection. It operates within a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-efficiency regulation by directing quiescent current into the load rather than wasting it as heat.
• Features on-chip trimming that ensures tight output voltage tolerance across the operating temperature range.
• Maintains stability with a minimum output capacitor requirement of only 10µF.

Applications

• SCSI-2 active termination circuits
• General-purpose linear power supply designs requiring high current
• Embedded systems needing efficient step-down regulation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package variant and tape-and-reel specifications. Confirm component availability status directly with authorized distributors or the manufacturer, as lead times and stock levels are subject to change.

Selection Notes

Select this component when a fixed or adjustable LDO capable of handling 5A loads is required. Ensure the input voltage does not exceed the 30V absolute maximum rating. Verify that the thermal management solution can handle the junction-to-ambient resistance specified for the D2PAK package under expected load conditions.

Part Context

This part belongs to the LD1084 series of low-dropout regulators manufactured by STMicroelectronics. The series offers both fixed and adjustable output versions in various packages including TO-220 and D2PAK variants. It serves as a robust alternative to older three-terminal adjustable regulators with improved performance characteristics.

Replacement Considerations

LD1084D2M18R