ISL6537ACRZ Equivalent & Substitute Parts

Part Overview

The ISL6537ACRZ is a Memory DDR/DDR2 Regulator PMIC manufactured by Renesas Electronics Corporation in a 28-QFN (6x6) surface mount package. This integrated circuit functions as a voltage regulator and controller for DDR and DDR2 memory applications, operating within the 0°C to 70°C temperature range. The main part is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

ISL6537ACRZ

Renesas Electronics CorporationIn Stock: 1786ISL6537ACRZ Datasheet

Current PartRFQ

ISL6537ACRZ-T

Renesas Electronics CorporationIn Stock: 1707ISL6537ACRZ-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISL6537ACRZ is determined by strict alignment of the following parameters:

• Package configuration: 28-VQFN Exposed Pad (28-QFN 6x6)
• Mounting technology: Surface Mount
• Supply current specification: 7mA
• Operating temperature range: 0°C ~ 70°C
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected
• Moisture sensitivity classification: MSL 3 (168 Hours)
• Functional application: Memory DDR/DDR2 Regulator

The ISL6537ACRZ-T qualifies as a direct substitute based on identical alignment across all critical electrical, mechanical, and regulatory parameters. The primary distinction is packaging format: the main part is supplied in Tube packaging, while the substitute is available in Cut Tape (CT) and Digi-Reel® formats.

Parameter Comparison

Engineering Selection Recommendations

The ISL6537ACRZ-T is the designated manufacturer-recommended substitute for the ISL6537ACRZ. Both parts maintain identical electrical specifications, thermal operating range, and regulatory compliance certifications. The main part has transitioned to Last Time Buy status, while the substitute remains in Active production status, ensuring continued availability for new designs and ongoing procurement.

Selection between these parts should be based on packaging and supply chain requirements. The Tube packaging of the main part suits lower-volume or manual assembly operations, while the Cut Tape and Digi-Reel® formats of the substitute support automated pick-and-place assembly and higher-volume production environments. Both formats contain the same die and meet identical performance specifications.

Frequently Asked Questions (FAQ)

Q: Can ISL6537ACRZ-T be used as a direct replacement for ISL6537ACRZ in existing designs?

A: Yes. Both parts share identical electrical characteristics, package geometry (28-QFN 6x6), thermal specifications, and regulatory compliance. The only difference is the packaging format (Tube versus Cut Tape/Digi-Reel®). No circuit modifications or re-qualification are required.

Q: Why does the main part show Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing production of this specific part number. The ISL6537ACRZ-T remains in Active production and serves as the ongoing alternative for future orders and designs.

Q: Are there any differences in moisture sensitivity or handling requirements?

A: No. Both parts carry identical MSL 3 (168 Hours) classification, requiring the same storage, handling, and reflow procedures. Packaging format does not affect moisture sensitivity specifications.

Q: What is the significance of the packaging format difference?

A: Tube packaging is typically used for manual assembly, lower-volume production, or component kitting. Cut Tape and Digi-Reel® formats are optimized for automated assembly equipment and higher-volume manufacturing. The electrical and thermal performance remains identical regardless of packaging format.

Q: Are both parts ROHS3 compliant?

A: Yes. Both ISL6537ACRZ and ISL6537ACRZ-T are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.