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MIC2548-2BM
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Product Detailed Parameters
- Description：PROGRAMMABLE HIGH-SIDE SWITCH
- 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)
- Grade：-
- Qualification：-
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Overview
The MIC2548-2BM is a single-channel, high-side power switch IC from Microchip Technology’s MIC2548 series. It features a programmable current limit adjustable from 100 mA to 1.5 A and a maximum on-resistance of 120 mΩ. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports output currents up to 500 mA. Key timing parameters include a maximum turn-on time of 5 ms and a maximum off-time of 22 µs. It is designed for low-loss DC power switching applications.
Feature Summary
- Integrates a high-side N-channel switch with programmable current limiting for precise load protection
- Optimized for low conduction losses with minimal external component requirements
- Supports advanced power management standards including ACPI compliance
Applications
- USB port power switching and distribution
- ACPI-compliant system power management
- Load driver circuits in embedded systems
Procurement Notes
Verify the specific suffix (e.g., -TR for tape and reel) against your assembly requirements. Confirm that the 8-SOIC package dimensions match your PCB footprint. Ensure the operating temperature range of -40°C to +85°C aligns with your environmental specifications. Cross-reference the datasheet DS20005725 for exact electrical characteristics before finalizing procurement.
Selection Notes
Select this component when a single-channel high-side switch with adjustable current limiting is required. It is suitable for applications needing low on-resistance and fast switching times. Consider the MIC2544 variant if dual-channel functionality is needed instead. Ensure the input voltage stays within the 2.7 V to 5.5 V range for proper operation.
Part Context
The MIC2548-2BM belongs to the MIC2544/48 family of integrated high-side power switches. These devices are designed for cost-effective power distribution solutions. The family targets USB and ACPI applications, offering a compact alternative to discrete MOSFET designs. The MIC2548 specifically provides single-channel control with programmable limits.
Replacement Considerations
The MIC2544-2BM is a dual-channel equivalent within the same family. Verify pinout compatibility if substituting with other single-channel high-side switches. Check if adjacent part numbers like MIC2548-2YM offer different packaging or temperature grades.
