LX5586LL-TR RF Front End Module Equivalent & Substitute Parts

Part Overview

The LX5586LL-TR is a General Purpose RF Front End module operating in the 4.8GHz to 5.85GHz frequency band, packaged in a 16-QFN (2.5x2.5mm) form factor with exposed pad. This part is classified as Obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement planning. The module features SPDT (Single Pole Double Throw) switching capability and is ROHS3 compliant with MSL Level 1 rating.

Substiute Parts

LX5586LL-TR

Microchip TechnologyIn Stock: 8257LX5586LL-TR Datasheet

Current PartRFQ

LX5586ALL-TR

Microchip TechnologyIn Stock: 2631LX5586ALL-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LX5586LL-TR is determined by the following critical parameters:

• Package Compatibility: Identical 16-XFQFN Exposed Pad package with 2.5x2.5mm dimensions
• Frequency Coverage: Frequency range must encompass or overlap the 4.8GHz to 5.85GHz band
• Functional Architecture: SPDT switching capability maintained
• Base Product Family: LX5586 series designation
• Compliance Standards: ROHS3 and REACH compliance maintained

The LX5586ALL-TR qualifies as a manufacturer-recommended substitute based on these parameters. While the substitute operates in a narrower frequency band (5.15GHz ~ 5.85GHz) and is designated for 802.11n/ac applications rather than General Purpose use, it maintains identical package geometry, SPDT functionality, and regulatory compliance. The frequency overlap in the 5.15GHz to 5.85GHz range supports substitution for applications operating within this common band.

Parameter Comparison

Engineering Selection Recommendations

The LX5586ALL-TR is the manufacturer-recommended substitute for the obsolete LX5586LL-TR. Selection of this substitute is supported by:

• Active Product Status: The LX5586ALL-TR maintains Active product status, ensuring continued availability and manufacturing support from Microchip Technology
• Regulatory Compliance: Both parts maintain ROHS3 and REACH compliance, satisfying environmental and hazardous substance requirements
• Package Equivalence: Identical 16-QFN (2.5x2.5mm) package geometry ensures direct PCB layout compatibility without redesign
• Functional Equivalence: SPDT architecture is preserved across both parts
• Frequency Band Overlap: The 5.15GHz to 5.85GHz operating range of the substitute encompasses the upper portion of the original part's frequency specification, supporting applications operating within this overlapping band

The primary design consideration is the narrower frequency range of the substitute. Applications requiring operation below 5.15GHz are not suitable for direct substitution with the LX5586ALL-TR.

Frequently Asked Questions (FAQ)

Q: Can the LX5586ALL-TR be used as a direct replacement for the LX5586LL-TR in all applications?

A: Direct substitution is valid only for applications operating within the 5.15GHz to 5.85GHz frequency range. Applications requiring operation in the 4.8GHz to 5.15GHz band are not compatible with the LX5586ALL-TR.

Q: Are the package dimensions identical between these parts?

A: Yes. Both the LX5586LL-TR and LX5586ALL-TR use the 16-XFQFN Exposed Pad package with 2.5x2.5mm dimensions. No PCB layout modifications are required for package compatibility.

Q: What is the difference in Moisture Sensitivity Level between these parts?

A: The LX5586LL-TR has MSL Level 1 (Unlimited shelf life), while the LX5586ALL-TR has MSL Level 3 (168 hours maximum floor life after moisture exposure). This affects handling and storage procedures but does not impact electrical performance.

Q: Why is the LX5586LL-TR classified as Obsolete?

A: Obsolete status indicates the part is no longer manufactured by Microchip Technology. The LX5586ALL-TR, as an Active product from the same base family, is the recommended path forward for new designs and ongoing procurement.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both the LX5586LL-TR and LX5586ALL-TR are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.