General Description

The MIC2073/2074 are high-side MOSFET switches optimized for general-purpose power distribution requiring circuit protection.

The MIC2073/2074 are internally current limited and have thermal shutdown for protecting the device and load.

Features

• 115 mΩ typical RBDS(ON) at 5.0 V

• 210 mΩ maximum RBDS(ON) at 5.0 V

• 2.7 V to 5.5 V operating range

• 500 mA minimum continuous current per channel

• Short circuit protection with thermal shutdown

• Thermally isolated channels

• Fault status flag (FLGA/B) separate for each channel

• 3ms fault flag delay (TD) eliminates false assertions

• UVLO (Undervoltage Lockout)

• Reverse current flow blocking (no “body diode”)

• Circuit breaker mode (MIC2074)

• Logic-compatible inputs

• Soft-start circuit

• Low quiescent current

• Pin compatible with the MIC2026/2076

Applications

• USB peripherals

• General purpose power switching

• ACPI power distribution

• Notebook PCs

• PDAs

• PC card hot swap