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MIC2545A-2YM-TR
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:1 8SOIC
- 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)：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 MIC2545A-2YM-TR 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 programmable current limit adjustable between 500 mA and 3 A, with a maximum on-resistance of 50 mΩ. Key timing specifications include a maximum turn-on time of 5 ms and a maximum turn-off time of 25 µs. It functions reliably across an operating temperature range of -40°C to +85°C.
Feature Summary
- Programmable current limiting allows precise adjustment of load protection thresholds
- Integrated high-side switching topology simplifies circuit design for positive rail control
- Fast turn-off response minimizes transient effects during shutdown events
Applications
- USB port power distribution and overcurrent protection
- Peripheral device power sequencing in embedded systems
- Load switching for battery-powered consumer electronics
Procurement Notes
Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm that the programmable current limit setting matches your application requirements using external components as specified in the datasheet. Ensure the input voltage does not exceed the absolute maximum ratings to prevent device damage. Check for RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when a single-channel high-side switch with adjustable current limiting is required. Compare against fixed-limit switches if programmability is unnecessary. Consider the 50 mΩ on-resistance for thermal management calculations. Verify compatibility with the system's logic levels and supply voltage range before finalizing the design.
Part Context
This part belongs to the MIC2545A family of USB power switches. It is functionally similar to the MIC2544A but offers higher current capability. The '2YM' designation typically refers to the SOIC-8 package variant. The '-TR' suffix denotes reel packaging for automated assembly processes.
Replacement Considerations
The MIC2545A-2YM is the non-reel version of this component. Other family members like MIC2544A offer lower current limits. Verify pinout compatibility before substituting with other high-side switches from different manufacturers.
