ISL6545ACBZ Equivalent & Substitute Parts

Part Overview

The ISL6545ACBZ is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Renesas Electronics Corporation in 8-SOIC packaging. This component functions as a transistor driver for step-down voltage regulation applications with a single output phase and 600kHz switching frequency. The main part is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

ISL6545ACBZ

Renesas Electronics CorporationIn Stock: 1551ISL6545ACBZ Datasheet

Current PartRFQ

ISL6545ACBZ-T

Renesas Electronics CorporationIn Stock: 6012ISL6545ACBZ-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ISL6545ACBZ is determined by strict equivalence across the following critical parameters:

• Base product number (ISL6545)
• Functional topology (Buck, step-down, positive output)
• Electrical specifications (4.5V ~ 14.4V supply, 600kHz switching, 100% duty cycle)
• Output configuration (single output, single phase, transistor driver)
• Control features (current limit, enable)
• Package type (8-SOIC surface mount)
• Operating temperature range (0°C ~ 70°C)
• Regulatory compliance (ROHS3, REACH Unaffected, EAR99)

The ISL6545ACBZ-T qualifies as a direct substitute based on identical electrical and mechanical specifications. The difference between these parts is limited to packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The ISL6545ACBZ-T is the direct equivalent substitute for the ISL6545ACBZ. Both parts share identical electrical specifications, functional topology, and package dimensions. The ISL6545ACBZ-T is preferred for new designs and ongoing procurement due to its Active product status and improved moisture sensitivity rating (MSL 1 versus MSL 3). The ISL6545ACBZ-T maintains full ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can ISL6545ACBZ-T replace ISL6545ACBZ in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The ISL6545ACBZ-T uses Tape & Reel packaging instead of Tube packaging, but the die and pinout are equivalent. No circuit modifications are required.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is used for lower-volume orders and manual handling. Tape & Reel packaging is used for automated assembly processes. Both formats contain the same component with identical electrical performance.

Q: Why is the ISL6545ACBZ marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this specific packaging variant. The ISL6545ACBZ-T (Tape & Reel format) remains in Active production and is the recommended alternative for future procurement.

Q: Does the moisture sensitivity level difference affect compatibility?

A: The ISL6545ACBZ-T has MSL 1 (Unlimited shelf life), while the ISL6545ACBZ has MSL 3 (168-hour shelf life). This difference affects storage and handling procedures but does not impact electrical performance or circuit compatibility. The ISL6545ACBZ-T offers superior moisture protection.

Q: Are both parts ROHS3 compliant?

A: Yes. Both ISL6545ACBZ and ISL6545ACBZ-T are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.