ISL6539IA Equivalent & Substitute Parts

Part Overview

The ISL6539IA is a DDR DRAM voltage regulator controller IC manufactured by Renesas Electronics Corporation. This device functions as a 2-output power management IC designed for DDR DRAM and SDRAM voltage regulation applications. The ISL6539IA is classified as obsolete product status, which necessitates identification of active equivalent parts to ensure continued design support and procurement availability for new applications or legacy system maintenance.

Substiute Parts

ISL6539IA

Renesas Electronics CorporationIn Stock: 859ISL6539IA Datasheet

Current PartRFQ

ISL6539IAZ

Renesas Electronics CorporationIn Stock: 3977ISL6539IAZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL6539IA is determined by strict equivalence across the following electrical and mechanical parameters:

• Input voltage range: 3.3V ~ 18V
• Output voltage range: 0.9V ~ 5.5V
• Number of outputs: 2
• Operating temperature range: -40°C ~ 85°C
• Package type: 28-SSOP with identical physical dimensions (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Moisture sensitivity level: 3 (168 Hours)

The ISL6539IAZ meets all specified parameters and is designated as a direct manufacturer equivalent. Both parts share the same base product number (ISL6539) and are manufactured by Renesas Electronics Corporation.

Parameter Comparison

Engineering Selection Recommendations

The ISL6539IAZ is the active equivalent for the obsolete ISL6539IA. Both parts maintain identical electrical specifications and physical packaging, ensuring direct functional compatibility in DDR DRAM voltage regulation applications.

The ISL6539IAZ offers the additional advantage of ROHS3 compliance, whereas the ISL6539IA is RoHS non-compliant. For new designs or systems requiring regulatory compliance with current environmental standards, the ISL6539IAZ is the appropriate selection. Both parts carry REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can ISL6539IAZ be used as a direct replacement for ISL6539IA?

A: Yes. The ISL6539IAZ is a direct manufacturer equivalent. Both parts share identical electrical parameters (input/output voltage ranges, number of outputs, operating temperature), physical packaging (28-SSOP), and mounting type. Functional compatibility is assured.

Q: What is the primary difference between ISL6539IA and ISL6539IAZ?

A: The ISL6539IA is classified as obsolete product status, while ISL6539IAZ is active. Additionally, ISL6539IAZ is ROHS3 compliant, whereas ISL6539IA is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 28-SSOP package with identical physical dimensions (0.154", 3.90mm Width). Pinout and mounting type are identical.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts have Moisture Sensitivity Level 3 (168 Hours). This indicates standard moisture sensitivity requiring standard handling and storage practices for surface mount components.

Q: Is ISL6539IAZ suitable for legacy system repairs?

A: Yes. The ISL6539IAZ can be used to replace ISL6539IA in existing systems due to complete electrical and mechanical equivalence. The active product status of ISL6539IAZ ensures continued availability for procurement.