LD1084D2M80R

Overview

The LD1084D2M80R is a fixed-output low-dropout positive voltage regulator manufactured by STMicroelectronics. It provides an output voltage of 8V with a guaranteed maximum output current of 5A. The device features a typical dropout voltage of 1.3V at full load and maintains an output tolerance of ±1% at 25°C. It operates within a junction temperature range of -40°C to +125°C and includes internal thermal limit and short-circuit protection.

Feature Summary

• Provides up to 5A of output current with tight voltage tolerance
• Features pin-to-pin compatibility with standard adjustable regulators
• Includes internal power and thermal limiting for robust operation

Applications

• SCSI-2 active termination circuits
• General-purpose power supply regulation
• Embedded system voltage conditioning

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and tape-and-reel configuration. Confirm component availability status as distribution data may vary. Ensure compliance with environmental standards such as ECOPACK requirements before finalizing procurement decisions.

Selection Notes

Select this component when a stable 8V rail is required for high-current loads. Consider the D2PAK package for surface-mount applications requiring efficient heat dissipation. Evaluate input voltage headroom relative to the specified dropout characteristics to ensure proper regulation under varying load conditions.

Part Context

This part belongs to the LD1084 series, which offers both adjustable and fixed output versions. The series is designed to replace older three-terminal adjustable regulators while providing improved performance in terms of dropout voltage and output tolerance. It serves as a key solution for power management in industrial and consumer electronics.

Replacement Considerations

LD1084D2M80T