MIC2544-2YMM Equivalent & Substitute Parts

Part Overview

The MIC2544-2YMM is an active N-Channel power switch/driver manufactured by Microchip Technology, designed for USB switching applications. This Power Management IC (PMIC) operates as a 1:1 high-side switch with integrated status flag and fault protection capabilities. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity for applications requiring identical electrical and mechanical performance characteristics.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Switch Type	USB Switch
Output Configuration	High Side, N-Channel
Number of Outputs	1
Ratio - Input:Output	1:1
Voltage - Load	2.7V ~ 5.5V
Current - Output (Max)	1.5A
Rds On (Typ)	80mOhm
Interface	On/Off
Input Type	Non-Inverting
Features	Status Flag
Fault Protection	Current Limiting (Adjustable), Over Temperature
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package	8-MSOP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the MIC2544-2YMM are identified based on strict electrical and mechanical parameter equivalence. All substitute parts maintain identical specifications across the following critical parameters:

Output configuration (High Side, N-Channel, 1:1 ratio)
Maximum output current (1.5A)
On-resistance (80mOhm typical)
Load voltage range (2.7V ~ 5.5V)
Interface type (On/Off, Non-Inverting)
Fault protection features (Current Limiting with adjustable threshold, Over Temperature protection)
Operating temperature range (-40°C ~ 85°C)
Package type (8-MSOP surface mount)
Compliance certifications (ROHS3, REACH Unaffected)

Substitution is permitted across MIC2544 and MIC2548 base product families with variant suffixes (-1YMM, -2YMM) and revision designations (A-series). All listed parts are manufactured by Microchip Technology and maintain functional and mechanical interchangeability within the specified parameter set.

Parameter Comparison

Part Number	Manufacturer	Output Type	Current (Max)	Rds On (Typ)	Voltage - Load	Package	Operating Temp	RoHS Status	Inventory (Pcs)
MIC2544-2YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	45741
MIC2544-1YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	1495
MIC2544A-1YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	4777
MIC2544A-2YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	721
MIC2548-1YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	5100
MIC2548-2YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	2170
MIC2548A-2YMM	Microchip Technology	N-Channel	1.5A	80mOhm	2.7V ~ 5.5V	8-MSOP	-40°C ~ 85°C	ROHS3 Compliant	2037

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical equivalence to the MIC2544-2YMM. Selection among these parts is based on availability and product status considerations:

MIC2544-2YMM remains the primary reference part with the highest inventory level (45,741 pcs). MIC2548-1YMM offers the second-highest availability (5,100 pcs) and represents an alternative base product family with identical performance specifications. MIC2544A-1YMM (4,777 pcs) and MIC2548-2YMM (2,170 pcs) provide additional supply options.

All parts carry active product status and ROHS3 compliance certification. No electrical performance differentiation exists between MIC2544 and MIC2548 base families or between standard and A-series revisions within the specified parameter set. Selection should prioritize inventory availability and lead time requirements for the application.

Frequently Asked Questions (FAQ)

Q: Can MIC2548-1YMM be used as a direct replacement for MIC2544-2YMM?

A: Yes. Both parts share identical electrical specifications (1.5A output current, 80mOhm Rds On, 2.7V-5.5V load voltage range) and mechanical packaging (8-MSOP surface mount). The MIC2548 and MIC2544 base product families are functionally equivalent within this parameter set.

Q: What is the difference between -1YMM and -2YMM suffix variants?

A: The suffix designations (-1YMM, -2YMM) represent packaging or tape/reel configuration variants. All electrical and thermal specifications remain identical across these variants. Selection is based on supply chain availability and packaging requirements.

Q: Are A-series parts (MIC2544A, MIC2548A) compatible with standard versions?

A: Yes. A-series revisions maintain full electrical and mechanical compatibility with standard versions. All parameters including output current, on-resistance, voltage range, and package type are identical.

Q: Does package type affect substitution eligibility?

A: No. All listed parts use the 8-MSOP surface mount package with identical pinout and mechanical dimensions (0.118", 3.00mm width). PCB layout and footprint compatibility is maintained across all substitute parts.

Q: Are there compliance differences between substitute parts?

A: No. All parts carry identical ROHS3 compliance certification and REACH Unaffected status. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all parts.

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