Features and Benefits

  • Provides Safe Hot Swap for -16V to -65V Power Supplies
  • 280mA Current Limit
  • Adjustable Undervoltage Threshold with a Default Set to -28V
  • Zero-Current Detection
  • Enable Input/Fault Output
  • Adjustable Output-Voltage Gate Ramp
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX5911 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that demonstrates the MAX5911 fully integrated hot-swap solution for negative supply rails. The device allows the safe insertion and removal of circuit cards into live backplanes or ports without causing problematic glitches on the negative power-supply rail. The EV kit operates over a -16V to -65V voltage range and has an adjustable undervoltage lockout (UVLO) set by default to -28V. During startup, the device regulates the current between the backplane power source and the load to 280mA and monitors four fault parameters: UVLO, power-not-good, zero-current detection, and thermal shutdown.


  • Bridges
  • Network Hubs, Switches, Routers
  • Routers/Switches

Applicable Parts

Documentation & Resources