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MIC2549A-1YM
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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-1YM is a single-channel high-side power switch IC manufactured by Microchip Technology. It features a programmable current limit ranging from 500 mA to 3 A, with a maximum on-resistance of 50 mΩ and a typical value of 35 mΩ. The device supports load voltages between 2.7 V and 5.5 V. Key protection mechanisms include over-current limiting and an over-temperature latch function. Operational timing includes a maximum turn-on time of 5 ms and a maximum off-time of 25 us. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates programmable current limiting for precise load protection
- Includes over-temperature latch functionality for thermal safety
- Features low on-resistance for efficient power distribution
Applications
- High-side power switching in embedded systems
- Load distribution in industrial control units
- Protection circuits for peripheral devices
Procurement Notes
Verify the specific ordering suffix against official Microchip documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the procurement channel provides valid traceability for the component's manufacturing origin. Ensure compatibility with standard SOIC-8 surface mount assembly processes during integration planning.
Selection Notes
Select this component when a single-channel high-side switch with adjustable current limits is required. The programmable feature allows customization of protection thresholds between 500 mA and 3 A. Consider the over-temperature latch behavior for applications requiring strict thermal cutoffs rather than auto-recovery. Evaluate the 50 mΩ on-resistance impact on system power efficiency.
Part Context
This part belongs to the MIC254x series of power switches from Microchip Technology. It is designed for robust load management in low-voltage applications. The series typically offers various channel counts and protection features. The MIC2549A-1YM specifically addresses needs for single-channel control with advanced thermal and current protection capabilities.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Microchip cross-reference tools or authorized distributor databases for verified alternatives.
