ISL6567CRZ Equivalent & Substitute Parts

Part Overview

The ISL6567CRZ is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Renesas Electronics Corporation in a 24-QFN (4x4) package. This component functions as a transistor driver for step-down voltage regulation applications with dual-output, dual-phase topology. The ISL6567CRZ is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

ISL6567CRZ

Renesas Electronics CorporationIn Stock: 6892ISL6567CRZ Datasheet

Current PartRFQ

ISL6567IRZ

Renesas Electronics CorporationIn Stock: 1116ISL6567IRZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL6567CRZ is determined by strict equivalence across the following critical parameters:

• Identical buck regulator topology with dual-output, dual-phase configuration
• Matching voltage supply range (4.9V ~ 5.5V)
• Identical switching frequency capability (200kHz ~ 2MHz)
• Matching maximum duty cycle (66%)
• Synchronous rectifier functionality present
• Identical control features (Enable, Frequency Control, Soft Start)
• Identical package type (24-VFQFN Exposed Pad)
• Matching electrical and mechanical specifications

The ISL6567IRZ qualifies as a direct substitute based on these parameters. The primary distinction is product status: ISL6567CRZ is obsolete, while ISL6567IRZ is active, and operating temperature range differs (ISL6567CRZ: 0°C ~ 70°C; ISL6567IRZ: -40°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

The ISL6567IRZ is the direct substitute for ISL6567CRZ applications. Both parts maintain identical electrical specifications, control architecture, and package configuration. The ISL6567IRZ is preferred for new designs due to active product status and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). Both components meet ROHS3 compliance and REACH requirements, ensuring regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can ISL6567IRZ replace ISL6567CRZ in existing designs? A: Yes. The ISL6567IRZ is electrically and mechanically equivalent. Both parts share identical buck regulator topology, voltage supply specifications, switching frequency range, duty cycle rating, and 24-VFQFN package configuration. Substitution is direct without circuit modification.

Q: What is the primary difference between these parts? A: Product status and operating temperature range. ISL6567CRZ is obsolete with 0°C ~ 70°C operating range. ISL6567IRZ is active with -40°C ~ 85°C operating range, providing broader temperature coverage for extended environmental conditions.

Q: Are both parts RoHS and REACH compliant? A: Yes. Both ISL6567CRZ and ISL6567IRZ are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for electronics manufacturing.

Q: Do these parts require different PCB layouts or thermal management? A: No. Both parts use identical 24-VFQFN Exposed Pad packaging with matching pin configurations and thermal characteristics. PCB layouts and thermal design remain unchanged during substitution.

Q: What is the moisture sensitivity level for these components? A: Both parts have MSL 3 rating with 168-hour floor life, requiring standard moisture control during storage and handling per IPC standards.