MIC2199BML Equivalent & Substitute Parts

Part Overview

The MIC2199BML is a buck regulator positive output step-down DC-DC controller IC manufactured by Microchip Technology in a 12-MLF® (4x4) package. This component functions as a transistor driver for step-down topology applications with a single output phase. The MIC2199BML is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Substiute Parts

MIC2199BML

Microchip TechnologyIn Stock: 772MIC2199BML Datasheet

Current PartRFQ

MIC2199YML

Microchip TechnologyIn Stock: 17766MIC2199YML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC2199BML is determined by strict equivalence across the following critical parameters:

• Identical output topology (buck step-down, positive output, single phase)
• Matching voltage supply range (4.5V ~ 32V)
• Identical switching frequency (300kHz)
• Matching duty cycle specification (85% maximum)
• Synchronous rectifier capability (Yes)
• Identical package and pinout (12-MLF® 4x4)
• Compatible operating temperature range (-40°C ~ 125°C)
• Same control feature set (Enable function)

The MIC2199YML meets all substitution criteria as a direct equivalent. Both parts share the same base product number (MIC2199) and are manufactured by Microchip Technology with identical electrical and mechanical specifications. The primary distinction is product status: MIC2199BML is obsolete while MIC2199YML is active.

Parameter Comparison

Engineering Selection Recommendations

The MIC2199YML is the direct active equivalent for the obsolete MIC2199BML. Both parts are functionally identical across all electrical and mechanical parameters. Selection between these parts is determined by availability and regulatory compliance requirements.

MIC2199YML is recommended for new designs and production applications due to its active product status and ROHS3 compliance. The MIC2199BML remains available in existing inventory (682 pcs) but carries obsolete status and RoHS non-compliance designation. Both parts maintain identical pinout, package footprint, and electrical performance characteristics, enabling direct substitution at the component level without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can MIC2199YML directly replace MIC2199BML in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The MIC2199YML uses the same 12-MLF® package with identical pinout, supply voltage range (4.5V ~ 32V), switching frequency (300kHz), duty cycle (85%), and operating temperature range (-40°C ~ 125°C). No circuit modifications are required.

Q: What is the primary difference between MIC2199BML and MIC2199YML?

A: Product status and regulatory compliance. MIC2199BML is obsolete and RoHS non-compliant. MIC2199YML is active and ROHS3 compliant. All functional specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 12-VFDFN Exposed Pad, 12-MLF® (4x4) package with identical pinout and footprint. The only packaging difference is that MIC2199YML is supplied in tube format.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: buck topology, positive output configuration, single output phase, 4.5V ~ 32V supply range, 300kHz switching frequency, 85% maximum duty cycle, synchronous rectifier capability, and 12-MLF® package. All these parameters are identical between MIC2199BML and MIC2199YML.

Q: Is RoHS compliance a functional requirement for substitution?

A: RoHS compliance is a regulatory and supply chain consideration, not a functional electrical parameter. MIC2199YML's ROHS3 compliance makes it suitable for applications with regulatory requirements. MIC2199BML remains functionally equivalent but carries non-compliance designation.