ISL6722AABZ Equivalent & Substitute Parts

Part Overview

The ISL6722AABZ is a Boost and Flyback Regulator Controller IC manufactured by Renesas Electronics Corporation. This Surface Mount device operates as a Step-Up/Step-Down DC-DC Controller with positive, isolation-capable output configuration. The part is currently in Active product status with 2200 pieces available in new original inventory.

Substitute parts become necessary when the ISL6722AABZ reaches end-of-life status, experiences supply constraints, or when design requirements permit functional equivalents that meet the same electrical and mechanical specifications.

Substiute Parts

ISL6722AABZ

Renesas Electronics CorporationIn Stock: 2294ISL6722AABZ Datasheet

Current PartRFQ

CS51022AEDR16G

onsemiIn Stock: 3632CS51022AEDR16G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISL6722AABZ is determined by the following critical parameters:

Mechanical Compatibility: Package type must be 16-SOIC with identical 0.154" (3.90mm) width to ensure PCB footprint compatibility without layout redesign.

Electrical Compatibility: Supply voltage range, switching frequency capability, and output configuration (positive, isolation-capable) must support the intended application topology.

Functional Compatibility: The substitute must operate as a DC-DC controller with transistor driver output type and support the required control features.

Compliance Requirements: RoHS3 compliance and regulatory certifications (REACH, ECCN) must be maintained.

The CS51022AEDR16G qualifies as a substitute based on matching package geometry, compatible supply voltage range, equivalent switching frequency, and identical output configuration.

Parameter Comparison

Engineering Selection Recommendations

ISL6722AABZ (Primary Selection): Recommended for new designs and applications requiring long-term supply availability. Active product status ensures continued manufacturing and support. Operating temperature range extends to 105°C, suitable for high-temperature environments. MSL rating of 3 requires standard moisture control during storage and assembly.

CS51022AEDR16G (Substitute Selection): Applicable only when ISL6722AABZ supply is unavailable or when design specifications permit the narrower operating temperature range (-40°C to 85°C). Obsolete product status indicates limited remaining inventory; long-term availability is not assured. Superior moisture resistance (MSL 1) provides handling advantages but does not offset end-of-life status for new production programs.

Selection between these parts must account for application temperature requirements and supply chain constraints. The CS51022AEDR16G supply voltage range (7.7V ~ 20V) is broader than the ISL6722AABZ (9V ~ 18V), permitting operation at lower input voltages if the application design supports this capability.

Frequently Asked Questions (FAQ)

Q: Can the CS51022AEDR16G replace the ISL6722AABZ in existing designs without PCB modification?

A: Yes, from a mechanical standpoint. Both parts use identical 16-SOIC packaging with 0.154" (3.90mm) width, ensuring footprint compatibility. However, electrical performance differences and the obsolete status of the CS51022AEDR16G require design validation before implementation.

Q: What is the impact of the different operating temperature ranges?

A: The ISL6722AABZ operates to 105°C, while the CS51022AEDR16G operates to 85°C. Applications requiring operation above 85°C ambient temperature cannot use the CS51022AEDR16G. Verify your application's maximum operating temperature specification before selecting a substitute.

Q: Why is the CS51022AEDR16G listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Remaining inventory is limited and finite. This part should not be selected for new production programs or applications requiring long-term supply assurance.

Q: Are there compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent. The MSL rating differs (ISL6722AABZ: MSL 3; CS51022AEDR16G: MSL 1), affecting moisture handling requirements during storage and assembly.

Q: What does the broader supply voltage range of the CS51022AEDR16G mean for my application?

A: The CS51022AEDR16G accepts input voltages from 7.7V to 20V, compared to the ISL6722AABZ range of 9V to 18V. If your application operates below 9V or above 18V, the CS51022AEDR16G may provide additional design flexibility. However, verify that the controller's internal circuitry and output characteristics remain suitable for your specific topology and load requirements.