LD1085V25

Overview

The LD1085V25 is a fixed positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 2.5 V with a maximum output current capability of 3 A. The device supports a maximum input voltage of 30 V and operates within an extended junction temperature range from -40 °C to +125 °C. It utilizes a TO-220 package for through-hole mounting, featuring integrated thermal overload and short-circuit protection mechanisms to ensure reliable operation under high-load conditions.

Feature Summary

• Provides stable fixed output voltage regulation suitable for sensitive digital logic circuits
• Capable of delivering high continuous output current up to 3 A for power-hungry applications
• Incorporates internal thermal shutdown and current limiting for enhanced operational safety

Applications

• Power supply stages in embedded systems requiring regulated 2.5 V rails
• Biasing circuits for RF modules and communication interfaces
• Voltage regulation for microcontroller core supplies in industrial equipment

Procurement Notes

Verify the specific suffix code against official datasheets to confirm pinout compatibility and package variations. Ensure that the procurement channel sources genuine components to avoid counterfeit risks associated with power management ICs. Confirm RoHS compliance status if required for specific regulatory environments, as older batches may differ.

Selection Notes

Select this component when a robust 3 A current capacity is required alongside a precise 2.5 V output level. The TO-220 package facilitates effective heat dissipation for high-current scenarios without external cooling solutions. Consider the dropout voltage characteristics relative to the minimum input voltage available in the design to maintain regulation margins.

Part Context

This part belongs to the LD1085 series of low-dropout regulators designed for general-purpose power management. The series offers various fixed output voltages and current ratings, catering to diverse electronic system requirements. The LD1085V25 specifically addresses applications needing higher current delivery compared to lower-power LDO alternatives.

Replacement Considerations

LD1086V25: Lower current rating (1.5 A) but similar voltage and package.