MIC2176-3YMM Equivalent & Substitute Parts

Part Overview

The MIC2176-3YMM is a buck regulator positive output step-down DC-DC controller IC manufactured by Microchip Technology. This power management IC operates as a transistor driver with a single output phase, designed for step-down voltage conversion applications. The device is actively produced and maintains full RoHS3 compliance with REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility while maintaining circuit performance specifications.

Substiute Parts

MIC2176-3YMM

Microchip TechnologyIn Stock: 2230MIC2176-3YMM Datasheet

Current PartRFQ

MIC2176-1YMM

Microchip TechnologyIn Stock: 3355MIC2176-1YMM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The MIC2176-3YMM qualifies MIC2176-1YMM as a parametric equivalent based on the following substitution criteria:

Matching Parameters (Required for Substitution):

• Identical manufacturer: Microchip Technology
• Identical base product number: MIC2176
• Identical category: Power Management (PMIC)
• Identical function: Step-Down Buck Regulator Controller
• Identical output type: Transistor Driver
• Identical output configuration: Positive
• Identical topology: Buck
• Identical number of outputs: 1
• Identical output phases: 1
• Identical voltage supply range: 4.5V ~ 75V
• Identical synchronous rectifier capability: Yes
• Identical package type: 10-MSOP (0.118", 3.00mm Width)
• Identical mounting type: Surface Mount
• Identical operating temperature range: -40°C ~ 125°C (TJ)
• Identical product status: Active
• Identical RoHS compliance: ROHS3 Compliant

Variable Parameters (Non-Critical for Substitution):

• Switching frequency: 300kHz (MIC2176-3YMM) vs. 100kHz (MIC2176-1YMM)
• Maximum duty cycle: 89% (MIC2176-3YMM) vs. 96% (MIC2176-1YMM)
• Moisture sensitivity level: MSL 1 (MIC2176-3YMM) vs. MSL 2 (MIC2176-1YMM)

Parameter Comparison

Engineering Selection Recommendations

Both MIC2176-3YMM and MIC2176-1YMM are active products with identical RoHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific switching frequency and duty cycle requirements. The MIC2176-3YMM operates at 300kHz with 89% maximum duty cycle, while the MIC2176-1YMM operates at 100kHz with 96% maximum duty cycle. The moisture sensitivity level difference (MSL 1 versus MSL 2) reflects storage and handling requirements but does not affect functional equivalence. Both devices maintain identical supply voltage range, package configuration, and thermal operating specifications.

Frequently Asked Questions (FAQ)

Q: Can MIC2176-1YMM directly replace MIC2176-3YMM in existing designs?

A: Direct replacement is possible when the application circuit accommodates the switching frequency difference (100kHz vs. 300kHz) and maximum duty cycle variation (96% vs. 89%). Circuit performance characteristics including output ripple, efficiency, and component sizing may differ due to these parameter variations.

Q: What is the significance of the MSL rating difference?

A: Moisture Sensitivity Level (MSL) indicates storage and handling requirements. MSL 1 (MIC2176-3YMM) allows unlimited shelf life, while MSL 2 (MIC2176-1YMM) requires controlled storage conditions with a 1-year limit. This affects component procurement and inventory management but does not impact electrical performance.

Q: Are both parts available in the same packaging?

A: Yes. Both MIC2176-3YMM and MIC2176-1YMM use identical 10-MSOP surface mount packaging with 0.118" width (3.00mm). PCB layout and footprint compatibility are maintained between these parts.

Q: What determines substitution eligibility for MIC2176 variants?

A: Substitution eligibility is determined by matching manufacturer, base product number, functional category, output configuration, topology, supply voltage range, package type, and compliance certifications. Switching frequency and duty cycle are application-dependent parameters that may vary between qualified substitutes.

Q: Is there inventory availability difference between these parts?

A: MIC2176-3YMM has 2160 pieces in stock, while MIC2176-1YMM has 3300 pieces in stock. Both are listed as new original inventory.