Equivalent & Substitute Parts for ISL8270MAIRZ

Part Overview

The ISL8270MAIRZ by Renesas Electronics Corporation is a non-isolated Point-of-Load (PoL) digital DC-DC converter module. It features one output supplying 0.6V to 5V at up to 25A, with an input voltage range of 4.5V to 14V. This device is RoHS3 compliant and offered in a 40-SMD module (17mm x 19mm x 3.6mm). The ISL8270MAIRZ is designated as obsolete, making it necessary to consider alternative models for sourcing and engineering continuity. Engineers must find equivalent or substitute modules with matching input/output ranges, current capabilities, and package constraints due to discontinuation.

Substiute Parts

ISL8270MAIRZ

Renesas Electronics CorporationIn Stock: 2262ISL8270MAIRZ Datasheet

Current PartRFQ

LTM4630AEY#PBF

Analog Devices Inc.In Stock: 1866LTM4630AEY#PBF Datasheet

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LTM4630AIY#PBF

Analog Devices Inc.In Stock: 4365LTM4630AIY#PBF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching or exceeding electrical and mechanical parameters defined in the main part:

• Type (Non-Isolated PoL Module, Digital)
• Number of Outputs
• Voltage - Input (Min/Max)
• Voltage - Output 1 range
• Current - Output (Max) must be ≥ 25A
• Mounting Type (Surface Mount)
• Operating Temperature
• Compliance status (RoHS, REACH, MSL)
• Package / Size (where dimensionally appropriate)

The following substitute modules match these criteria and can be evaluated for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

The ISL8270MAIRZ is obsolete. Both LTM4630AEY#PBF and LTM4630AIY#PBF are active, RoHS3 compliant, REACH unaffected, and meet MSL 3 (168 Hours). All devices support ITE (Commercial) applications and surface mount assembly. Both substitutes provide greater maximum output current and wider input/output voltage ranges within the specified limits. The package and dimensions differ; these must be cross-checked for PCB compatibility.

Frequently Asked Questions (FAQ)

Q1: What key criteria are used to select a substitute for ISL8270MAIRZ?
A1: Substitute selection uses number of outputs, voltage input and output range, maximum output current, mounting type, application class, operational temperature, RoHS/REACH/MSL status, and mechanical package/dimensions.

Q2: Are the LTM4630AIY#PBF and LTM4630AEY#PBF identical in functionality to ISL8270MAIRZ?
A2: Both substitutes meet or exceed the main part’s electrical output and regulatory parameters but differ in package case and overall dimensions.

Q3: What mechanical considerations are needed when using substitutes?
A3: The substitute modules utilize a 144-BBGA package with different footprint and thickness compared to the original 40-SMD module. PCB footprint and mechanical clearance must be reviewed.

Q4: Are all listed substitutes RoHS3 compliant and REACH unaffected?
A4: Yes, ISL8270MAIRZ, LTM4630AEY#PBF, and LTM4630AIY#PBF are all RoHS3 compliant and REACH unaffected with MSL 3 rating.

Q5: Can the substitute modules handle the same or greater output requirements?
A5: Yes, both LTM4630AEY#PBF and LTM4630AIY#PBF provide up to 36A output, exceeding the ISL8270MAIRZ’s 25A maximum.