MIC2025

Features:

• 140m maximum on-resistance
• 2.7V to 5.5V operating range
• 500mA minimum continuous output current
• Short-circuit protection with thermal shutdown
• Fault status flag with 3ms filter eliminates false assertions
• Undervoltage lockout
• Reverse current flow blocking (no "body diode")
• Circuit breaker mode (MIC2075) reduces power consumption
• Logic-compatible input
• Soft-start circuit
• Low quiescent current
• Pin-compatible with MIC2525


Application

• USB peripherals
• General purpose power switching
• ACPI power distribution
• Notebook PCs
• PDAs
• PC card hot swap


Pinout




Specifications

Supply Voltage (V_IN) ....................................... 0.3V to 6V
Fault Flag Voltage (V_FLG) ..............................................+6V
Fault Flag Current (I_FLG) ............................................25mA
Output Voltage (V_OUT) .................................................+6V
Output Current (I_OUT) ............................ Internally Limited
Enable Input (I_EN) .................................. 0.3V to V_IN +3V
Storage Temperature (T_S) .................. 65°C to +150°C


Description

The MIC2025 and MIC2075 are high-side MOSFET switches optimized for general-purpose power distribution requiring circuit protection.

The MIC2025/75 are internally current limited and have thermal shutdown that protects the device and load. The MIC2075 offers "smart" thermal shutdown that reduces current consumption in fault modes. When a thermal shutdown fault occurs, the output is latched off until the faulty load is removed. Removing the load or toggling the enable input will reset the device output.

Both MIC2025 and MIC2075 employ soft-start circuitry that minimizes inrush current in applications where highly capacitive loads are employed. A fault status output flag is provided that is asserted during overcurrent and thermal shutdown conditions.

The MIC2025/75 is available in the MM8™ 8-lead MSOP and 8-lead SOP.