MIC2183YM Equivalent & Substitute Parts

Part Overview

The MIC2183YM is a buck regulator positive output step-down DC-DC controller IC manufactured by Microchip Technology in a 16-SOIC package. This component functions as a transistor driver for step-down topology applications with a single output phase. The MIC2183YM is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement continuity. Active alternatives with equivalent or enhanced electrical characteristics are available from the same manufacturer.

Substiute Parts

MIC2183YM

Microchip TechnologyIn Stock: 2186MIC2183YM Datasheet

Current PartRFQ

MIC2168YMM

Microchip TechnologyIn Stock: 8563MIC2168YMM Datasheet

MFR RecommendedRFQ

MIC2193YM

Microchip TechnologyIn Stock: 2982MIC2193YM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC2183YM are identified based on functional equivalence within the buck regulator controller category. The substitution logic is determined by the following core parameters:

• Topology: Buck (step-down) configuration
• Output Type: Transistor driver for single-phase output
• Voltage Supply Range: Compatibility with 2.9V ~ 14V input
• Duty Cycle: Maximum 100% operation capability
• Synchronous Rectifier: Integrated synchronous rectification support
• Mounting Type: Surface mount technology
• Compliance: ROHS3 compliance and MSL Level 1

The MIC2193YM and MIC2168YMM meet these core functional requirements with variations in package form factor, switching frequency, and operating temperature range. Both substitute parts are manufactured by Microchip Technology and maintain the same fundamental buck controller architecture.

Parameter Comparison

Engineering Selection Recommendations

MIC2193YM is the primary substitute for MIC2183YM applications. Both parts share identical voltage supply range (2.9V ~ 14V), maximum duty cycle (100%), and SOIC package family. The MIC2193YM offers active product status with extended operating temperature range (-40°C ~ 125°C junction temperature versus -40°C ~ 85°C ambient for the original). The MIC2193YM operates at 400kHz fixed frequency, matching one of the MIC2183YM's selectable frequencies. Package footprint compatibility is maintained with both using 16-pin and 8-pin SOIC variants of the same 3.90mm width standard.

MIC2168YMM serves as an alternative substitute with higher switching frequency capability (1MHz) and extended voltage supply range (3V ~ 14.5V). This part is suitable for applications requiring higher frequency operation and improved thermal performance. The MIC2168YMM uses a 10-MSOP package with reduced width (3.00mm), requiring PCB layout modification. Maximum duty cycle is limited to 90%, which may restrict certain low-output-voltage applications compared to the 100% duty cycle of the original part.

Both substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and Microchip Technology manufacturing standards. Selection between MIC2193YM and MIC2168YMM depends on package space constraints, frequency requirements, and duty cycle specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can MIC2193YM directly replace MIC2183YM in existing designs?

A: The MIC2193YM is functionally compatible for buck regulator controller applications. Both parts operate within the same voltage supply range (2.9V ~ 14V) and support 100% duty cycle operation. The primary design consideration is package pin count: MIC2183YM uses 16-SOIC while MIC2193YM uses 8-SOIC. PCB layout and schematic modifications are required to accommodate the reduced pin count and different control feature set.

Q: What are the key differences between MIC2193YM and MIC2168YMM?

A: MIC2193YM maintains the 16-SOIC package family with 400kHz switching frequency and 100% maximum duty cycle. MIC2168YMM uses a smaller 10-MSOP package with 1MHz switching frequency and 90% maximum duty cycle. The MIC2168YMM offers higher frequency operation suitable for compact designs but requires verification that 90% duty cycle meets application requirements.

Q: Are package changes required when substituting these parts?

A: Yes. MIC2183YM uses 16-SOIC (3.90mm width), MIC2193YM uses 8-SOIC (3.90mm width), and MIC2168YMM uses 10-MSOP (3.00mm width). While MIC2183YM and MIC2193YM share the same SOIC width standard, pin count differs. MIC2168YMM requires different PCB footprint and layout considerations due to MSOP package geometry.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. MIC2183YM, MIC2193YM, and MIC2168YMM are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating. All parts are manufactured by Microchip Technology and meet identical regulatory requirements for industrial and commercial applications.

Q: What is the impact of clock sync availability on substitution?

A: MIC2183YM includes clock sync capability for frequency synchronization in multi-converter systems. MIC2193YM and MIC2168YMM do not include this feature. Applications requiring external frequency synchronization must evaluate alternative parts or implement synchronization through other circuit design methods.

Q: How do operating temperature ranges affect part selection?

A: MIC2183YM operates from -40°C to 85°C (ambient). MIC2193YM and MIC2168YMM operate from -40°C to 125°C (junction temperature). The extended range of substitute parts provides improved thermal margin in high-temperature environments. Applications operating near the upper temperature limit of the original part benefit from the extended range of substitute options.