MIC2077-1BWM Power Switch N-Channel USB Driver

Part Overview

The MIC2077-1BWM is a Power Management Integrated Circuit (PMIC) manufactured by Microchip Technology, classified as a Power Switch/Driver with 2 x 1:2 N-Channel configuration. This component functions as a USB Switch with 4 outputs, delivering up to 500mA per output channel with integrated slew rate control and status flag monitoring.

The MIC2077-1BWM is currently listed as Obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MIC2077-1BWM

Microchip TechnologyIn Stock: 1048MIC2077-1BWM Datasheet

Current PartRFQ

MIC2077-1YWM

Microchip TechnologyIn Stock: 1020MIC2077-1YWM Datasheet

DirectRFQ

MIC2077-2BWM TR

Microchip TechnologyIn Stock: 1041MIC2077-2BWM TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC2077-1BWM are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution validity:

Critical Equivalence Parameters:

• Switch Type: USB Switch
• Number of Outputs: 4
• Ratio - Input:Output: 2 x 1:2
• Output Type: N-Channel
• Output Configuration: High Side
• Current - Output (Max): 500mA
• Voltage - Load: 2.7V ~ 5.5V
• Rds On (Typ): 100mOhm
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 16-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Features: Slew Rate Controlled, Status Flag
• Fault Protection: Current Limiting (Fixed), Over Temperature, UVLO

All identified substitute parts maintain identical electrical specifications and mechanical compatibility. Variations exist only in packaging format (Tube vs. Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

MIC2077-1YWM is the primary recommended substitute for new designs and ongoing production. This part maintains complete electrical and mechanical equivalence to the MIC2077-1BWM while offering Active product status and ROHS3 compliance. The Tube packaging format is suitable for standard manufacturing workflows. MSL rating of 2 (1 Year) requires standard moisture control during storage and handling.

MIC2077-2BWM TR provides an alternative substitute with identical electrical specifications and Tape & Reel packaging suitable for high-volume automated assembly. This part retains Obsolete status and RoHS non-compliance, matching the original MIC2077-1BWM compliance profile. MSL rating of 1 (Unlimited) offers extended shelf life without moisture sensitivity constraints.

Selection between MIC2077-1YWM and MIC2077-2BWM TR depends on packaging requirements, compliance mandates, and production volume. For new designs requiring RoHS compliance, MIC2077-1YWM is the appropriate choice. For legacy system maintenance or high-volume production with existing Tape & Reel infrastructure, MIC2077-2BWM TR is suitable.

Frequently Asked Questions (FAQ)

Q: Can MIC2077-1YWM be used as a direct replacement for MIC2077-1BWM in existing designs?

A: Yes. MIC2077-1YWM is electrically and mechanically equivalent to MIC2077-1BWM. All critical parameters including output configuration, current rating, voltage range, and thermal specifications are identical. The primary differences are product status (Active vs. Obsolete), RoHS compliance (ROHS3 vs. non-compliant), and packaging format (Tube vs. Bulk).

Q: What is the difference between MIC2077-1YWM and MIC2077-2BWM TR?

A: Both parts are electrically equivalent with identical electrical specifications. The differences are: MIC2077-1YWM is supplied in Tube packaging with Active product status and ROHS3 compliance; MIC2077-2BWM TR is supplied in Tape & Reel format with Obsolete status and RoHS non-compliance. MSL ratings differ (2 vs. 1), affecting moisture sensitivity requirements.

Q: Are there any compatibility concerns when substituting these parts on a PCB?

A: No. All three parts use the 16-SOIC package with identical pinout and mechanical dimensions (0.295", 7.50mm Width). Surface mount assembly processes require no modification. Pin-for-pin compatibility is confirmed.

Q: What does the 2 x 1:2 ratio mean for this USB Switch?

A: The 2 x 1:2 ratio indicates the part contains 2 independent switch channels, each with a 1:2 output configuration, resulting in 4 total outputs. Each channel can independently control 2 load outputs from a single input control signal.

Q: Why is MIC2077-1BWM listed as Obsolete?

A: The MIC2077-1BWM has reached end-of-life status with Microchip Technology. MIC2077-1YWM is the active replacement part. Existing inventory remains available, but new designs should specify MIC2077-1YWM for long-term supply assurance.

Q: What are the MSL (Moisture Sensitivity Level) implications for storage?

A: MIC2077-1BWM and MIC2077-2BWM TR have MSL 1 (Unlimited), requiring no special moisture control. MIC2077-1YWM has MSL 2 (1 Year), requiring storage in controlled humidity environments and use within one year of package opening. Standard moisture barrier packaging is required for MIC2077-1YWM.