MIC2544-1YM

The MIC2544 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 is a cost-effective, highly integrated solution that requires 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 which minimizes inrush current when the switch is enabled. Thermal shutdown, along with current-limit, protects the switch and the attached device. The MIC2544 open-drain flag output is used to indicate current-limiting or thermal shutdown to a local controller. The MIC2544 are available in active-high and active-low enable versions in the 8-pin SOIC (small-outline integrated circuit) and 8-pin MSOP (microsmall-outline package).

2.7V to 5.5V input Adjustable current-limit up to 1.5A Reverse current flow blocking (no “body diode”) 75µA typical on-state supply current 1µA typical off-state supply current 120mO maximum on-resistance Open-drain fault flag Thermal shutdown 2ms (slow) turn-on and fast turnoff Available with active-high or active-low enable