LTC4411 - 2.6A Low Loss Ideal Diode in ThinSOT

Features

  • Low Loss Replacement for PowerPathTM OR'ing Diodes
  • Small Regulated Forward Voltage (28mV)
  • 2.6A Maximum Forward Current
  • Low Forward ON Resistance (140mohm 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

Typical Application

LTC4411 Typical Application
LTC4411 Typical Application

Description

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 140mohm 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.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC4411ES5#PBF SOT-23 S5 E 05-08-1635 Yes
LTC4411ES5#TRMPBF SOT-23 S5 E 05-08-1635 Yes
LTC4411ES5#TRPBF SOT-23 S5 E 05-08-1635 Yes


LTC4411 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC4411ES5#PBF SOT-23 E $2.36 Yes
LTC4411ES5#TRMPBF SOT-23 E $2.36 $1.68 Yes
LTC4411ES5#TRPBF SOT-23 E $2.36 $1.66 Yes
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* 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Cellular Phones
  • Handheld Computers
  • Digital Cameras
  • USB Peripherals
  • Uninterrupted Supplies
  • Logic Controlled Power Switch

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

Models for the following parts are available in LTspice:
LTC4411

Technical Support