ISL6527IRZ Equivalent & Substitute Parts

Part Overview

The ISL6527IRZ is a buck regulator positive output step-down DC-DC controller IC manufactured by Renesas Electronics Corporation in a 16-QFN (5x5) package with exposed pad. This device functions as a transistor driver for single-phase buck topology applications with synchronous rectification capability. The ISL6527IRZ is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

ISL6527IRZ

Renesas Electronics CorporationIn Stock: 774ISL6527IRZ Datasheet

Current PartRFQ

ISL6526AIRZ

Renesas Electronics CorporationIn Stock: 1333ISL6526AIRZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ISL6527IRZ has one parametric equivalent substitute: ISL6526AIRZ. This substitution is valid based on the following matching electrical and mechanical parameters:

Critical Matching Parameters:

• Package / Case: 16-VQFN Exposed Pad (identical)
• Supplier Device Package: 16-QFN (5x5) (identical)
• Function: Step-Down (identical)
• Topology: Buck (identical)
• Output Type: Transistor Driver (identical)
• Output Configuration: Positive (identical)
• Number of Outputs: 1 (identical)
• Output Phases: 1 (identical)
• Voltage - Supply (Vcc/Vdd): 2.97V ~ 3.63V (identical)
• Frequency - Switching: 600kHz (identical)
• Duty Cycle (Max): 100% (identical)
• Synchronous Rectifier: Yes (identical)
• Control Features: Enable, Phase Control (identical)
• Operating Temperature: -40°C ~ 85°C (TA) (identical)
• Mounting Type: Surface Mount (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level (MSL): 3 (168 Hours) (identical)
• REACH Status: REACH Unaffected (identical)

Both devices are manufactured by Renesas Electronics Corporation and share identical functional specifications, making them interchangeable for applications requiring single-phase buck regulation with synchronous rectification.

Parameter Comparison

Engineering Selection Recommendations

Both the ISL6527IRZ and ISL6526AIRZ are classified as obsolete products. Selection between these parts should be based on availability and packaging format. The ISL6527IRZ is available in standard packaging, while the ISL6526AIRZ is supplied in tube packaging. Both devices maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. For applications requiring single-phase buck regulation with synchronous rectification in the 16-QFN package format, either part satisfies the electrical and mechanical specifications identically.

Frequently Asked Questions (FAQ)

Q: Can ISL6526AIRZ replace ISL6527IRZ in existing designs? A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including package type (16-VQFN Exposed Pad), supply voltage range (2.97V ~ 3.63V), switching frequency (600kHz), and control features (Enable, Phase Control). Direct substitution is valid for applications designed for either part number.

Q: What is the difference between ISL6527IRZ and ISL6526AIRZ? A: The primary difference is packaging format. ISL6527IRZ uses standard packaging, while ISL6526AIRZ is supplied in tube packaging. All electrical specifications, thermal characteristics, and functional parameters are identical.

Q: Are both parts suitable for -40°C to 85°C operating temperature applications? A: Yes. Both ISL6527IRZ and ISL6526AIRZ operate across the identical temperature range of -40°C to 85°C (TA), making them suitable for industrial and commercial applications within this specification.

Q: Do these parts require different PCB layouts or thermal management approaches? A: No. Both parts use the identical 16-QFN (5x5) package with exposed pad. PCB layout, thermal management, and component placement strategies remain unchanged between the two part numbers.

Q: Are both parts RoHS and REACH compliant? A: Yes. Both ISL6527IRZ and ISL6526AIRZ are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: What is the moisture sensitivity level for these parts? A: Both parts have a Moisture Sensitivity Level (MSL) of 3 with a 168-hour floor life rating, requiring standard moisture control during storage and handling.