FAN1086M5

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The FAN1086M50 is a low dropout three-terminal linear regulator manufactured by ON Semiconductor, part of the FAN1086 series originally developed by Fairchild Semiconductor. It provides a fixed 5V output with a maximum current capability of 1.5A. The device is housed in a TO-263-3 (D2PAK) surface-mount package. Key electrical characteristics include a typical load regulation of 0.05% and an output current rating of 500mA to 1.5A depending on thermal conditions. It features on-chip thermal limiting and trimmed current limit protection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Low dropout voltage operation optimized for minimal input-to-output differential requirements
• Integrated thermal limiting protection against excessive junction temperatures under overload or high ambient conditions
• Trimmed current limit ensuring specified output current delivery and controlled short-circuit behavior

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Active Terminators for SCSI bus systems using the 2.85V variant architecture
• General purpose low voltage power supply regulation where transient response is critical
• Point-of-load regulation for digital logic circuits requiring stable 5V rails

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the exact suffix designation as datasheets typically list FAN1086M50 for the 5V fixed version in TO-263 packages. Confirm RoHS compliance status as historical data indicates variations. Ensure the supplier documentation matches the specific pinout and thermal pad configuration of the TO-263-3 package to avoid integration errors during PCB assembly.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 5V output is required with up to 1.5A current capacity in a surface-mount format. Consider the TO-263-3 package for its thermal dissipation capabilities compared to smaller SOT-223 options. Evaluate the dropout voltage requirements against the minimum input voltage available in the system design to ensure stable regulation under all operating conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the FAN1086 family of low dropout regulators, which also includes adjustable versions and other fixed voltage outputs such as 2.5V, 2.85V, and 3.3V. The series was originally produced by Fairchild Semiconductor before being acquired by ON Semiconductor. The M50 suffix specifically denotes the 5V fixed output variant in the TO-263 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

The LM1086 from Texas Instruments is a functionally similar 1.5A LDO regulator. Verify pin compatibility and thermal resistance values before substitution. Other variants within the FAN1086 series may serve as alternatives if different voltage outputs are acceptable.