LD1086DT80TR

Overview

The LD1086DT80TR is a fixed-output low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 8.0 V with a maximum output current capability of 1.5 A. The device features a line regulation of 10 mV and load regulation of 20 mV, ensuring stable performance under varying conditions. It operates within an input voltage range up to a maximum of 30 V and maintains accuracy within ±1%. The component is housed in a surface-mount DPAK package (TO-252-3) with three pins, designed for thermal efficiency and compact board integration.

Feature Summary

• Provides a fixed 8.0 V output with high precision tolerance
• Capable of delivering up to 1.5 A continuous output current
• Features internal thermal overload and short-circuit protection
• Utilizes a low dropout design for improved power efficiency

Applications

• General-purpose linear voltage regulation in electronic circuits
• Power supply stages requiring stable 8.0 V rails
• Embedded systems utilizing the LD1086 family architecture

Procurement Notes

Verify the specific suffix '80' confirms the 8.0 V fixed output variant, as the LD1086 series includes multiple voltage options. Confirm the 'D' indicates the DPAK/TO-252-3 surface mount package type. Ensure the 'TR' suffix matches the required reel packaging format for automated assembly processes. Cross-reference the manufacturer datasheet to validate pinout compatibility with existing designs.

Selection Notes

Select this component when a fixed 8.0 V rail is required at currents up to 1.5 A. The DPAK package offers a balance between thermal dissipation and footprint size compared to larger through-hole options. Consider the 30 V maximum input rating to ensure adequate headroom without exceeding limits. Verify that the system's thermal environment supports the package's heat dissipation capabilities under full load conditions.

Part Context

This part belongs to the LD1086 series of positive low-dropout regulators from STMicroelectronics. The series is characterized by its ability to handle high currents while maintaining tight output voltage tolerances. It serves as a robust solution for power management applications where efficiency and stability are critical, offering pin-compatible alternatives to older adjustable regulator designs.

Replacement Considerations

Direct substitutes include other LD1086 variants with identical packages and electrical characteristics but different output voltages, such as LD1086DT33TR or LD1086DT50TR, provided the circuit design accommodates the voltage difference. Generic LDOs with matching current ratings and package types may serve as functional replacements if pinouts and thermal profiles align.