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MIC2544A-2YM
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:1 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Switch Type：USB Switch
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：On/Off
- Voltage - Load：2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：1.5A
- Rds On (Typ)：80mOhm
- 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
- Supplier Device Package：8-SOIC
- Package / Case：8-SOIC (0.154", 3.90mm Width)
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Overview
The MIC2544A-2YM is a single-channel high-side power switch manufactured by Microchip Technology. It operates within a supply voltage range of 2.7V to 5.5V and supports a maximum load current of 1.5A. The device features an N-channel output with a typical on-resistance (RdsOn) of 80mΩ at 5V. Key protection mechanisms include programmable current limiting, thermal shutdown, and reverse battery protection. It utilizes an ACPI-compatible interface for control and is housed in an 8-pin MSOP package.
Feature Summary
- Integrates programmable current limiting for precise load protection
- Includes thermal shutdown and reverse battery protection circuits
- Features status flag output for fault indication
- Supports ACPI-compatible control interface
Applications
- USB port power distribution and switching
- Peripheral power management in embedded systems
- Hot-swap applications requiring controlled inrush current
- Battery-powered devices needing efficient power gating
Procurement Notes
Verify the specific suffix 'A' indicates the advanced version with updated specifications compared to standard variants. Confirm the 'YM' designation corresponds to the MSOP-8 package type. Ensure compatibility with ACPI signaling requirements if used in legacy system interfaces. Check RoHS compliance status for environmental regulations.
Selection Notes
Select this component when a single high-side switch with adjustable current limit is required. It is suitable for applications needing low on-resistance to minimize power loss. Consider the MSOP package size for space-constrained designs. Verify that the 5.5V maximum voltage rating aligns with the system's supply rails.
Part Context
This part belongs to the MIC2544 family of high-side switches from Microchip Technology, originally developed by Micrel. The family includes variants like MIC2544-1YM and MIC2544-2YM, differing primarily in channel count and specific electrical characteristics. The MIC2544A variant represents an enhanced version with refined performance parameters.
Replacement Considerations
Direct substitutes may include MIC2544-1YM or MIC2544-2YM depending on channel requirements. Verify pinout compatibility and electrical parameter alignment before substitution. Consult official Microchip documentation for cross-reference lists.
