Features and Benefits
- Low Loss Replacement for PowerPath™ OR'ing Diodes
- Small Regulated Forward Voltage (28mV)
- 2.6A Maximum Forward Current
- Low Forward ON Resistance (140mΩ Max)
- Low Reverse Leakage Current (<1µA)
- 2.6V to 5.5V Operating Range
- Internal Current Limit Protection
- Internal Thermal Protection
- No External Active Components
- Pin-Compatible Monolithic Replacement for the LTC4412
- Low Quiescent Current (40µA)
- Low-Profile (1mm) 5-lead SOT-23 Package
The LTC4411 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 connecting IN to OUT. During normal forward operation, the drop across the MOSFET is regulated to as low as 28mV. Quiescent current is less than 40µA for load currents up to 100mA. If the output voltage exceeds the input voltage, the MOSFET is turned off and less than 1µA of reverse current flows from OUT to IN. Maximum forward current is limited to a constant 2.6A (typical) and internal thermal limiting circuits 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 power source 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 LTC4411 indicates this condition with a low voltage on the status signal.
- Cellular Phones
- Handheld Computers
- Digital Cameras
- USB Peripherals
- Uninterrupted Supplies
- Logic Controlled Power Switch
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
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Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.