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MIC2544A-1YMM-TR
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:1 8MSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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-MSOP
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
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Overview
The MIC2544A-1YMM-TR is a high-side power switch IC featuring an N-channel MOSFET in an 8-pin MSOP package. It operates within a supply voltage range of 2.7V to 5.5V and supports a maximum load current of 1.5A. The device includes programmable current limiting from 100mA to 1.5A, with a typical on-resistance of 80mΩ and a maximum of 120mΩ. Key protection features include adjustable current limit, overtemperature shutdown, and a status flag output. It utilizes a non-inverting interface and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates programmable current limiting for precise load protection
- Provides thermal shutdown and status flag indication
- Features low on-resistance for efficient power distribution
Applications
- Embedded system power distribution
- USB port protection circuits
- Peripheral load drivers
Procurement Notes
Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm the 'A' variant designation aligns with required electrical tolerances. Ensure the MSOP-8 footprint matches the target PCB layout. Cross-reference the manufacturer datasheet for any recent PCN updates regarding assembly sites or material changes before finalizing procurement.
Selection Notes
Select this component for applications requiring high-side switching with integrated fault protection. The programmable current limit allows customization for various load profiles. The compact MSOP package suits space-constrained designs. Verify that the operating voltage range covers the system's nominal supply. Consider the thermal performance requirements given the integrated overtemperature protection.
Part Context
This part belongs to the MIC2544 family of high-side power switches manufactured by Microchip Technology. It serves as a power distribution solution for embedded systems. The device replaces earlier Micrel products following corporate acquisitions. It is designed for reliable operation in consumer and industrial electronics requiring robust load management.
Replacement Considerations
Public confirmed substitutes include MIC2544-1YMM-TR and MIC2544A-1YM-TR. Verify pinout compatibility and electrical specifications before substitution.
