Linear Technology LTC4362IDCB-2#TRMPBF

Description
The LTC4362 is a monolithic overvoltage/overcurrent protector designed to safeguard 2.5V to 5.5V systems from power supply overvoltage. It features an internal 40mΩ N-channel MOSFET and 31mΩ RSENSE, providing overvoltage protection up to 28V. The avalanche-rated MOSFET eliminates the need for input capacitors or TVS in most applications. The LTC4362 offers a fast overvoltage turn-off time of less than 1μs and a gentle shutdown. It has a 2% accurate 5.8V overvoltage threshold and a 20% accurate 1.5A overcurrent threshold. The input withstands up to ±25kV HBM ESD with ≥1μF COUT. The LTC4362 incorporates controlled power-up dV/dt limits to minimize inrush current, reverse voltage protection, and a low current shutdown latchoff (LTC4362-1) or auto-retry (LTC4362-2) after overcurrent. It is available in an 8-lead DFN 2mm x 3mm package.

Features
2.5V to 5.5V Operation
Overvoltage Protection Up to 28V
Internal 40mΩ N-Channel MOSFET and 31mΩ RSENSE
Avalanche Rated MOSFET Requires No Input Capacitor or TVS for Most Applications
<1μs Overvoltage Turn-Off, Gentle Shutdown
2% Accurate 5.8V Overvoltage Threshold
20% Accurate 1.5A Overcurrent Threshold
Input Withstands Up to ±25kV HBM ESD with ≥1μF COUT
Controlled Power-Up dV/dt Limits Inrush Current
Reverse Voltage Protection Driver
Low Current Shutdown Latchoff (LTC4362-1) or Auto-Retry (LTC4362-2) After Overcurrent
Available in 8-Lead DFN 2mm x 3mm Package

Applications
USB Protection
Handheld Computers
Cell/Smart Phones
MP3/MP4 Players
Digital Cameras