ISL9011IRBCZ Equivalent & Substitute Parts

Part Overview

The ISL9011IRBCZ is a linear voltage regulator IC from Renesas Electronics Corporation designed for positive fixed dual-output applications. This device integrates two independent regulators capable of delivering 150mA and 300mA outputs at fixed voltages of 1.5V and 1.8V respectively. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where this topology remains applicable.

Substiute Parts

ISL9011IRBCZ

Renesas Electronics CorporationIn Stock: 785ISL9011IRBCZ Datasheet

Current PartRFQ

MIC2211-FGYML-TR

Microchip TechnologyIn Stock: 911MIC2211-FGYML-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL9011IRBCZ is determined by the following critical parameters:

• Dual-output configuration: Both regulators must provide independent 1.5V and 1.8V fixed outputs
• Current delivery capability: Minimum 150mA and 300mA per output channel
• Package compatibility: 10-pin surface mount with exposed pad footprint
• Input voltage tolerance: Maximum input voltage rating of 5.5V or higher
• Control and protection features: Enable function with over-current and over-temperature protection
• Environmental compliance: ROHS3 compliance and MSL Level 1 rating

The MIC2211-FGYML-TR from Microchip Technology meets these substitution criteria while maintaining functional equivalence for the dual-output linear regulator topology.

Parameter Comparison

Engineering Selection Recommendations

The MIC2211-FGYML-TR is the primary substitute for the obsolete ISL9011IRBCZ. Selection of this alternative is supported by:

• Active product status: The MIC2211-FGYML-TR maintains active manufacturing status, ensuring long-term availability and supply chain continuity
• Functional equivalence: Identical dual-output configuration with matching 1.5V and 1.8V fixed voltage outputs and current ratings
• Compliance alignment: Both devices maintain ROHS3 compliance and MSL Level 1 rating, satisfying environmental and handling requirements
• Package compatibility: Both devices utilize 10-pin surface mount packages with exposed pad design, enabling direct PCB footprint compatibility
• Enhanced operating range: The MIC2211-FGYML-TR supports extended temperature operation to 125°C, exceeding the ISL9011IRBCZ specification of 85°C

Design considerations include the reduced maximum input voltage specification (5.5V versus 6.5V) and increased quiescent current (80 µA versus 40 µA) of the substitute part. These differences require verification against specific application input voltage and standby power consumption requirements.

Frequently Asked Questions (FAQ)

Q: Can the MIC2211-FGYML-TR directly replace the ISL9011IRBCZ without PCB modifications?

A: Yes. Both devices share identical 10-pin surface mount package footprints with exposed pad design. Pin-to-pin compatibility and functional equivalence enable direct substitution without PCB layout changes.

Q: What is the significance of the ISL9011IRBCZ being classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support. The MIC2211-FGYML-TR provides functional continuity for systems requiring dual-output 1.5V/1.8V linear regulation, with the advantage of active product status and ongoing availability.

Q: Are there differences in protection features between these devices?

A: The ISL9011IRBCZ includes soft start and under-voltage lockout (UVLO) protection in addition to over-current and over-temperature protection. The MIC2211-FGYML-TR provides over-current and over-temperature protection. Applications requiring soft start or UVLO functionality must evaluate whether these features are critical to system operation.

Q: What is the impact of the 1V difference in maximum input voltage specification?

A: The ISL9011IRBCZ supports input voltages to 6.5V, while the MIC2211-FGYML-TR is rated to 5.5V maximum. Applications operating at input voltages between 5.5V and 6.5V require the original part or alternative solutions. Designs operating below 5.5V input voltage are compatible with the substitute.

Q: How do quiescent current differences affect system design?

A: The MIC2211-FGYML-TR draws 80 µA quiescent current compared to 40 µA for the ISL9011IRBCZ. In standby or low-power applications, this 40 µA difference may impact total system power consumption. Calculate cumulative standby current requirements to determine if this increase is acceptable for the target application.

Q: Are both devices suitable for the same packaging and handling processes?

A: Yes. Both devices carry MSL Level 1 (Unlimited) moisture sensitivity rating and ROHS3 compliance, ensuring compatibility with standard surface mount assembly processes and environmental requirements.