AP1086T50G-U

Overview

The AP1086T50G-U is a fixed-mode low dropout positive voltage regulator manufactured by Diodes Incorporated. It provides a fixed 5.0V output with a maximum current capability of 1.5A. The device operates within an input voltage range of 4.7V to 12V and maintains regulation with a maximum dropout voltage of 1.4V at full load. It features built-in thermal shutdown and output current limiting for protection. The component is housed in a TO-220-3L through-hole package and is designed for applications requiring well-regulated supplies for low voltage ICs.

Feature Summary

• Provides stable regulated power for low voltage integrated circuits
• Incorporates internal thermal shutdown and current limiting mechanisms
• Delivers fast transient response with minimal external components

Applications

• High-speed bus termination
• Low current 3.3V logic supply
• VGA cards
• Post regulation for switching supplies

Procurement Notes

Verify the specific suffix 'U' indicates tube packaging and 'G' denotes green molding compound compliance. Confirm RoHS status and lead-free finish requirements against current environmental directives. Ensure the TO-220-3L package dimensions match the target PCB footprint. Validate that the 1.5A current rating and 12V maximum input voltage align with system design constraints before finalizing procurement.

Selection Notes

Select this component when a fixed 5V output is required from a 4.7V to 12V input source. The TO-220-3L package is suitable for through-hole mounting where higher thermal dissipation is needed compared to surface-mount options. Consider the 1.4V dropout characteristic to ensure sufficient headroom between input and output voltages under all operating conditions and load transients.

Part Context

This part belongs to the AP1086 series of low dropout regulators, which includes adjustable and various fixed voltage versions. The series is designed to replace older linear regulators by offering lower dropout voltages and better transient response. The AP1086T50G-U specifically represents the fixed 5.0V variant in the TO-220-3L package format.

Replacement Considerations

Direct substitutes include other AP1086 variants with different output voltages or packages, such as AP1086T33G-U for 3.3V output. Cross-brand replacements like the LD1086DT50TR are available but require verification of pinout compatibility and electrical parameter alignment.