Datasheet Analog Devices LT4422

Data Sheet LT4422
28V, 4A Ideal Diode FEATURES GENERAL DESCRIPTION
The LT®4422 is an ideal 1.9V to 28V diode with integrated
P-channel MOSFET. When enabled, 15mV forward
voltage regulation minimizes power dissipation while
increasing operating headroom and efficiency
compared to a Schottky diode.  Internal 50mΩ Power Path
 Wide Operating Voltage Range: 1.9V to 28V
 Reverse Current Protection
 Low 10µA Quiescent Current
 Fast 3µs Response to Load Steps
 Low 500nA Off State Current The LT4422 easily ORs power supplies together to
increase system reliability and prevent reverse
conduction. A non-enabled LT4422 blocks up to 28V at
the output while exhibiting less than 1μA (typical)
leakage current, providing orders of magnitude
improvement over typical Schottky diodes, which leads
to extended battery life.  Smooth Switchover in Diode-OR Applications
 10-Lead (3mm x 2mm x 0.75mm) LDFN Package APPLICATIONS
 Schottky Diode Replacement
 Battery and Wall Adapter Diode ORing Fast OUT to IN reverse bias detection minimizes reverse
current, preventing undesired charging of input
batteries. The open-drain STATUS output pulls low …