● 100mΩ (TYP) High-side N-Channel MOSFET

● Three Current Limit Levels

   SGM2581A/B/G: 1100 ± 110mA

● Input Voltage Range: 2.5V to 5.5V

● Low 23μA Quiescent Current

● Typical 0.1μA Shutdown Current

● Soft-Start Function

● Thermal Shutdown Protection

● Under-Voltage Lockout Protection for VIN

● No Reversed Leakage Current (Reverse Blocking)

● Fault Flag (FAULT ) with 13ms Filter Eliminates False Assertions

● Automatic Output Discharge in Shutdown Mode 

   (SGM2581A/B/C/D/E/F)

● Available in the Green SOT-23-5 Package

The SGM2581 is an integrated 100mΩ (TYP) power switch for self-powered and bus-powered Universal Series Bus (USB) applications. The SGM2581 is internally current limited and has thermal shutdown that protects device and load from over-current damage. Thermal shutdown shuts off the output MOSFET and asserts the FAULT output if the die temperature exceeds 150℃ until the die temperature drops to 130℃. This device employs soft-start circuit that minimizes inrush current in applications where highly capacitive loads are employed.

An open drain FAULT flag asserts low during overcurrent and thermal conditions after a 13ms blanking time to prevent false reporting. SGM2581 is available in the Green SOT-23-5 package. It is rated over the -40℃ to +85℃ temperature range.