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MIC2544-1BM
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:1 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- 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 MIC2544-1BM is a single-channel high-side power switch IC from Microchip Technology, designed for USB power distribution and general-purpose load switching. It operates within a supply voltage range of 2.7V to 5.5V and supports an output current up to 1.5A with a programmable current limit adjustable between 100mA and 1.5A. The device features a maximum on-resistance of 120mΩ and includes integrated protection against over-current and thermal conditions. Packaged in an 8-pin SOIC surface-mount case, it functions effectively across an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrates a high-side N-channel MOSFET optimized for low-loss DC power switching applications.
- Provides programmable current limiting capability to protect loads from over-current events.
- Includes built-in thermal shutdown protection to prevent damage during fault conditions.
Applications
- USB hub power distribution
- Peripheral device power switching
- General-purpose load management
Procurement Notes
Verify the specific suffix 'BM' corresponds to the 8-SOIC package variant when sourcing components. Confirm that the manufacturer designation aligns with Microchip Technology following its acquisition of Micrel. Ensure the component meets the required operating temperature specifications for the intended environment before finalizing procurement orders.
Selection Notes
Select this component for applications requiring a single-channel high-side switch with programmable current limits. It is suitable for systems needing protection against short circuits and overloads while maintaining low conduction losses. Consider the 8-SOIC package constraints for PCB layout and thermal management requirements.
Part Context
This part belongs to the MIC2544 series of integrated high-side power switches. The series is engineered for efficient power distribution in portable and industrial electronics. The MIC2544-1BM specifically denotes the single-channel variant housed in an 8-pin SOIC package, distinguishing it from dual-channel or different package options within the same family.
Replacement Considerations
The MIC2544-1YMM serves as a package-compatible alternative within the same series, offering identical electrical characteristics but utilizing an MSOP package instead of SOIC. Verify pinout compatibility and thermal performance differences when substituting packages.
