Datasheet Analog Devices LT4423
| Manufacturer | Analog Devices |
| Series | LT4423 |
28V, 2A Ideal Diode and Load Switch
Datasheets
28V, 2A Ideal Diode and Load Switch
Detailed Description
The LT4423 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.
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.
Fast OUT to IN reverse bias detection minimizes reverse current, preventing undesired charging of input batteries. The open-drain STATUS output pulls low when the LT4423 is in shutdown, reverse bias, or under thermal protection. Integrated thermal detection protects from overtemperature conditions by disabling the power path.
Model Line
Manufacturer's Classification
- Power Monitor, Control, and Protection > PowerPath, Ideal Diodes, and Load Switches