MIC2183BQS Equivalent & Substitute Parts

Part Overview

The MIC2183BQS is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Microchip Technology in a 16-QSOP package. This component functions as a transistor driver for step-down voltage conversion applications with a single output phase. The MIC2183BQS is currently discontinued at DiGi Electronics, making identification of compatible substitute parts essential for ongoing design support and production continuity.

Substiute Parts

MIC2183BQS

Microchip TechnologyIn Stock: 2424MIC2183BQS Datasheet

Current PartRFQ

MIC2183YQS

Microchip TechnologyIn Stock: 4511MIC2183YQS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC2183BQS is determined by strict equivalence across the following critical parameters:

• Output topology (Buck converter with positive output)
• Output configuration (single output, single phase)
• Supply voltage range (2.9V ~ 14V)
• Switching frequency capability (200kHz, 400kHz)
• Control feature set (Enable, Frequency Control, Soft Start)
• Package type (16-QSOP)
• Operating temperature range (-40°C ~ 85°C)

The MIC2183YQS qualifies as a direct substitute based on identical electrical specifications and package configuration. Both parts share the same base product number (MIC2183) and maintain functional equivalence across all specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The MIC2183YQS serves as the direct functional equivalent to the MIC2183BQS. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction between these parts is compliance status: the MIC2183YQS achieves ROHS3 compliance, whereas the MIC2183BQS is RoHS non-compliant. For applications requiring RoHS compliance, the MIC2183YQS is the appropriate selection. Both parts are currently in obsolete or discontinued status, indicating limited future availability through standard distribution channels.

Frequently Asked Questions (FAQ)

Q: Can the MIC2183YQS directly replace the MIC2183BQS in existing designs?

A: Yes. The MIC2183YQS is electrically and mechanically equivalent to the MIC2183BQS. Both parts share identical supply voltage ranges, switching frequencies, control features, package configuration, and operating temperature specifications. No circuit modifications are required for substitution.

Q: What is the difference between the MIC2183BQS and MIC2183YQS?

A: The primary difference is RoHS compliance status. The MIC2183YQS is ROHS3 compliant, while the MIC2183BQS is RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are there any package differences between these parts?

A: No. Both the MIC2183BQS and MIC2183YQS use the 16-QSOP package with identical physical dimensions (16-SSOP, 0.154" width, 3.90mm).

Q: What packaging formats are available for these parts?

A: The MIC2183BQS is supplied in Bulk packaging, while the MIC2183YQS is supplied in Tube packaging. Both formats contain the same component with identical specifications.

Q: Are these parts still in production?

A: No. Both the MIC2183BQS and MIC2183YQS are discontinued or obsolete. The MIC2183BQS is discontinued at DiGi Electronics, and the MIC2183YQS is listed as obsolete. Availability is limited to existing inventory.