LTC4411

IN, OUT, STAT, CTL Voltage ........................................................................................ 0.3 to 6V
Operating Ambient Temperature Range(Note 2) ...............................................40°C to 85°C
Operating Junction Temperature(Note 3) ........................................................40°C to 125°C
Storage Temperature Range ...........................................................................65°C to 125°C
Lead Temperature (Soldering, 10 sec) ............................................................................. 300°C

The LTC^®4411 is an ideal diode IC, capable of supplying up to 2.6A from an input voltage between 2.6V and 5.5V. The LTC4411 is housed in a 5-lead 1mm profile SOT-23 package.

The LTC4411 contains a 140mΩ P-channel MOSFET con-necting IN to OUT. During normal forward operation, thedrop across the MOSFET is regulated to as low as 28mV.Quiescent current is less than 40µA for load currents up to100mA. If the output voltage exceeds the input voltage, theMOSFET is turned off and less than 1µA of reverse currentflows from OUT to IN. Maximum forward current is limited to a constant 2.6A (typical) and internal thermal limiting cir-cuits protect the part during fault conditions.

An open-drain STAT pin indicates conduction status. The STAT pin can be used to drive an auxiliary P-channel MOSFET power switch connecting an alternate powersource when the LTC4411 is not conducting forward current.

An active-high control pin turns off the LTC4411 and reduces current consumption to less than 25µA. When shut off, the device indicates this condition with a low voltage on the status signal.