ISL6377HRZ Equivalent & Substitute Parts

Part Overview

The ISL6377HRZ is a Robust Ripple Regulator™ (R3) Controller manufactured by Renesas Electronics Corporation, designed for AMD Fusion™ CPU GPU voltage regulation applications. This IC functions as a multiphase regulator controller with 2 outputs, operating within an input voltage range of 10V to 12.6V and output voltage range of 0.5V to 1.55V. The device is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for design continuity and procurement planning.

Substiute Parts

ISL6377HRZ

Renesas Electronics CorporationIn Stock: 7677ISL6377HRZ Datasheet

Current PartRFQ

ISL6377HRZ-T

Renesas Electronics CorporationIn Stock: 1486ISL6377HRZ-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL6377HRZ is determined by strict equivalence across the following critical parameters:

• Manufacturer and Base Product Number: Both the main part and substitute must originate from Renesas Electronics Corporation and share the base product number ISL6377 to ensure functional and pin-level compatibility.
• Electrical Specifications: Input voltage range (10V ~ 12.6V), output voltage range (0.5V ~ 1.55V), and number of outputs (2) must be identical.
• Package and Mounting: The 48-VFQFN Exposed Pad package with surface mount technology must be maintained.
• Environmental and Compliance Standards: RoHS3 compliance, MSL rating, and REACH status must match or exceed the original specification.
• Packaging Format: Substitutes may differ in packaging format (Tube vs. Tape & Reel) without affecting functional compatibility, provided all other parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ISL6377HRZ-T serves as a direct functional equivalent to the ISL6377HRZ. Both devices are manufactured by Renesas Electronics Corporation and maintain identical electrical specifications, package geometry, and compliance certifications. The primary distinction is product status and packaging format: the ISL6377HRZ is designated Last Time Buy, while the ISL6377HRZ-T maintains Active status with availability in Tape & Reel format.

For new designs or procurement requiring extended product lifecycle support, the ISL6377HRZ-T is the appropriate selection. Both parts satisfy ROHS3 compliance and REACH requirements, ensuring regulatory alignment for industrial and consumer applications. The identical MSL rating (3, 168 Hours) confirms equivalent moisture handling requirements during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can ISL6377HRZ-T replace ISL6377HRZ in existing designs?

A: Yes. Both parts share identical electrical specifications, pin configuration, and package dimensions (48-VFQFN Exposed Pad). The only difference is packaging format (Tube vs. Tape & Reel) and product lifecycle status. No circuit modifications are required.

Q: What is the significance of the Last Time Buy status on ISL6377HRZ?

A: Last Time Buy indicates that the ISL6377HRZ will no longer be manufactured after a specified date. Existing inventory remains available, but future procurement should transition to the ISL6377HRZ-T, which maintains Active status.

Q: Are there differences in compliance or certifications between these parts?

A: No. Both the ISL6377HRZ and ISL6377HRZ-T are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings. Compliance certifications are equivalent.

Q: Does packaging format (Tube vs. Tape & Reel) affect performance?

A: No. Packaging format affects only handling, storage, and automated assembly compatibility. Electrical performance and functional characteristics remain identical. Tape & Reel format is standard for high-volume automated assembly operations.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: manufacturer (Renesas Electronics Corporation), base product number (ISL6377), input voltage range (10V ~ 12.6V), output voltage range (0.5V ~ 1.55V), number of outputs (2), package type (48-VFQFN Exposed Pad), and compliance certifications (ROHS3, REACH).