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MIC2549A-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)：3A
- Rds On (Typ)：35mOhm
- Input Type：Non-Inverting
- Features：Slew Rate Controlled, Status Flag
- Fault Protection：Current Limiting (Adjustable), Over Temperature, Reverse Current
- 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)
- Grade：-
- Qualification：-
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Overview
The MIC2549A-2YM is a single-channel high-side power switch IC from Microchip Technology, housed in an 8-pin SOIC package. It operates within a supply voltage range of 2.7 V to 5.5 V and supports output currents up to 3 A. The device features a low on-state resistance of 35 mΩ and includes programmable current limiting with over-temperature latch protection. Designed for USB power distribution applications, it offers precise control and robust fault management in a compact surface-mount form factor.
Feature Summary
- Programmable current limit functionality for customizable load protection
- Over-temperature latch mechanism ensures thermal safety under fault conditions
- High-side switching architecture compatible with standard logic levels
Applications
- USB hub power distribution circuits
- Peripheral device power gating
- Battery-powered system load switching
Procurement Notes
Verify the specific suffix 'YM' corresponds to the 8-pin SOIC package variant when sourcing. Confirm that the ordering part number matches the required tape-and-reel quantity if applicable. Ensure compatibility with the target PCB footprint and thermal requirements before finalizing procurement decisions.
Selection Notes
Select this component when a single-channel high-side switch with programmable current limiting is required. Consider the 35 mΩ on-resistance for efficiency needs and the 3 A maximum output current capability. Evaluate the over-temperature latch feature against system safety requirements compared to non-latching alternatives.
Part Context
This part belongs to the MIC2549A series of USB power switches. It shares functional similarities with other devices in the family but differs in channel count and package options. The MIC2549A-2YM specifically denotes the single-channel version in an SOIC-8 package, distinct from dual-channel or TSSOP variants.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official Microchip cross-reference tools for potential replacements.
