Microchip Technology MIC2548
The MIC2548 has an additional internal latch that turns the output off upon thermal shutdown, providing robust fault control. The enable signal is compatible with both 3V and 5V logic, and is also used as the thermal shutdown latch reset for the MIC2548. The MIC2544 and MIC2548 are available in active-high and active-low enable versions in the 8-lead SOIC and 8-lead MSOP packages.| Part No. | MIC2548 |
|---|---|
| Datasheet | MIC2548 Download |
| Manufacturer |  Microchip Technology |
| Description | Programmable Current-Limit High-Side Switch |
| Buy | Stock & Price |
FEATURES
● 2.7V to 5.5V Input● Adjustable Current-Limit up to 1.5A
● Reverse Current Flow Blocking (No “Body Diode”)
● 75 μA Typical On-State Supply Current
● 1 μA Typical Off-State Supply Current
● 120 mΩ Maximum On-Resistance
● Open-Drain Fault Flag
● Thermal Shutdown
● Thermal Shutdown Output Latch (MIC2548)
● 2 ms (Slow) Turn-On and Fast Turn-Off
● Available with Active-High or Active-Low Enable
APPLICATIONS
● USB Power Distribution● PCI Bus Power Switching
● Notebook PC
● ACPI Power Distribution
● PC Card Hot Swap
APPLICATIONS
● Inrush Current-LimitingGENERAL DESCRIPTION
The MIC2544 and MIC2548 are integrated, high-side power switches optimized for low-loss DC power switching and other power management applications, including Advanced Configuration and Power Interface (ACPI). The MIC2544/48 are cost-effective, highly integrated solutions that require few external components to satisfy USB and ACPI requirements. Load current management features include a precision resistor-programmable output current-limit and a soft-start circuit that minimizes inrush current when the switch is enabled.
