FAN1086M5X

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

The FAN1086M5X is a low dropout linear regulator manufactured by Fairchild Semiconductor, part of the FAN1086 series. It provides a fixed 5V output with a maximum current capability of 1.5A. The device utilizes a TO-263 (D2PAK) surface-mount package for efficient thermal management. Key electrical characteristics include a typical load regulation of 0.05% and an on-chip thermal limiting circuit to protect against excessive junction temperatures during overload conditions.

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 to prevent damage from overload or high ambient temperatures
• 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
• General-purpose low voltage power supply regulation
• Portable battery-powered equipment requiring efficient linear regulation

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

Verify the manufacturer origin as Fairchild Semiconductor or its successor entities like ON Semiconductor. Confirm the specific suffix 'M5X' corresponds to the 5V fixed output variant in the TO-263 package. Ensure RoHS compliance status matches project requirements, noting that older batches may differ. Cross-reference datasheet revisions to confirm pinout and electrical specifications remain consistent with design intent.

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

Select this component when a stable 5V rail is required with up to 1.5A load current. The TO-263 package offers superior heat dissipation compared to smaller SOT packages, making it suitable for higher power applications. Consider the dropout voltage constraints relative to the minimum input voltage available in the system design to ensure proper regulation under all operating conditions.

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

This component belongs to the FAN1086 family of three-terminal adjustable and fixed LDO regulators. The series includes variants with different fixed output voltages such as 2.5V, 2.85V, 3.3V, and 5V. The M5X designation specifically identifies the 5V fixed output version within the TO-263 surface-mount form factor, distinguishing it from adjustable versions or other package types like SOT-223.

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

Equivalent parts include the LM1086 series from Texas Instruments, which shares similar 1.5A capabilities and regulatory features. Verify pin compatibility and thermal performance characteristics before substitution. Other manufacturers offering comparable LDOs should be evaluated based on dropout voltage and current limit specifications.