Microchip Technology MIC2042-1BM

Description
The MIC2042 and MIC2043 are high-side MOSFET switches designed for power distribution applications requiring circuit protection. They operate within a voltage range of 0.8V to 5.5V and offer programmable current limiting and thermal shutdown to safeguard the device and load. A fault status output detects overcurrent and thermal shutdown conditions. Soft-start circuitry minimizes inrush current in applications with capacitive loads. Additionally, an external capacitor can adjust the output slew rate for tighter control over inrush current during startup.

Features
Low on-resistance (60mΩ max)
Wide operating voltage range (0.8V to 5.5V)
Adjustable current limit
Power-Good detection
Continuous output current up to 3A
Short-circuit protection with thermal shutdown
Adjustable slew-rate control
Circuit breaker mode (MIC2043)
Fault status flag
Undervoltage lockout
Output MOSFET reverse current flow block when disabled
Fast reaction to short-circuits
Low quiescent current

Applications
Docking stations
Notebook PCs
PDAs
Hot swap board insertions
RAID controllers
USB hosts
ACPI power distribution