This IC targets dual voltage hot swap applications across the +2.5V to +3.3V (nominal) bias supply voltage range with a second lower voltage rail down to less than 1V. It features a charge pump for driving external N-Channel MOSFETs, regulated current protection and duration, output undervoltage monitoring and reporting, optional latch-off or retry response, and adjustable soft-start.

Features

• Fast Current Regulation amplifier quickly responds to overcurrent fault conditions

• Less than 1µs response Time to Dead Short

• Programmable Current Regulation Level and Duration

• Two Levels of Overcurrent Detection Provide Fast Response to Varying Fault Conditions

• Overcurrent Circuit Breaker and Fault Isolation functions

• Adjustable Current Regulation Threshold as low as 20mV

• Selectable Latch-off or Auto Retry Response to Fault conditions

• Adjustable voltage ramp-up for In-rush Protection During Turn-On

• Rail Independent Control, Monitoring and Reporting I/O

• Dual Supply Hot Swap Power Distribution Control to <1V

• Charge Pump Allows the use of N-Channel MOSFETs

• QFN Package:

- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline

- Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Power Supply Sequencing, Distribution and Control

• Hot Swap/Electronic Breaker Circuits