Datasheet Analog Devices LT4423 — 数据表

Data Sheet LT4423
28V, 2A Ideal Diode and Load Switch FEATURES GENERAL DESCRIPTION  Internal 200mΩ Power Path
 Wide Operating Voltage Range: 1.9V to 28V The LT®4423 is a 1.9V to 28V ideal diode and load switch
with integrated P-channel MOSFETs. When enabled,
15mV forward voltage regulation minimizes power
dissipation while increasing operating headroom and
efficiency compared to a Schottky diode.  Reverse Current Protection
 Load Switch Capability
 Low 10µA Quiescent Current
 Fast 3µs Response to Load Steps Using two LT4423s in diode-OR applications provide a
seamless transfer to the highest available voltage under
varying input supply conditions. A non-enabled LT4423
blocks up to 28V in either direction or polarity while
exhibiting less than 1μA (typical) leakage current,
providing orders of magnitude improvement over
typical Schottky diodes, which leads to extended
battery life.  Low 500nA Off State Current
 Smooth Switchover in Diode-OR Applications
 Integrated Thermal Protection
 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 …