The ISL6121 is a single supply Overcurrent (OC) fault protection IC for 2.5V to 5V applications where 2A current limiting is desired. This device features internal current monitoring and limiting along with a 50mΩ integrated power switch and a current limited time out to latch-off feature for system protection. The time to latch-off is independent of device temperature, and magnitude of OC.

Features

• 0.05Ω Integrated Power N-channel MOSFET Switch

• Accurate Current Sensing and Limiting

• 12ms Timed Fault Latch-Off, No thermal Dependency

• 2.5V to 5.5V Operating Range

• Under Voltage Lockout

• Disabled Output Internally Pulled Low

• Controlled Turn On/Off Ramp Times

• Fault Output Signal

• Logic Level Enable High Inputs (ISL6121H) or Enable Low Inputs (ISL6121L)

• Logic Level Compatible Enable Input and Fault Output

Applications

• Fibre Channel

• Industrial Power Control

• Hot Plug