General Description

The MAX5902/MAX5903 are SOT23 hot-swap controllers that allow a circuit card to be safely hot plugged into a live backplane without causing a glitch on the power-supply rail. These devices operate from +9V to +72V and provide the simplest hot-swap solution by eliminating all external components except the external P-channel MOSFET.

Features

♦ Wide +9V to +72V Operation

♦ Requires No External Sense Resistor

♦ Drives External P-Channel MOSFET

♦ Limits Inrush Current

♦ Circuit Breaker Function

♦ Less than 2mA Quiescent Current

♦ ON/OFF Input Permits Load Power-Supply Control and Sequencing

♦ Adjustable Undervoltage Lockout

♦ Power-Good Output with +72V Rating

♦ Latching or Automatic Retry Fault Management

♦ Thermal Shutdown Helps Protect the External MOSFET

♦ Space-Saving SOT23-6 Package

Applications

Network Routers

Servers

Network Switches

RAID

Industrial Systems

Base Station Line Cards