LT4423

RECOMMENDED FOR NEW DESIGNS

28V, 2A Ideal Diode and Load Switch

Data Sheet (Rev. 0) Product Selection Table

Part Models: 1
1ku List Price: Starting From $1.99

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Part Details

Internal 200mΩ Power Path
Wide Operating Voltage Range: 1.9V to 28V
Reverse Current Protection
Load Switch Capability
Low 10μA Quiescent Current
Fast 3μs Response to Load Steps
Low 500nA Off State Current
Smooth Switchover in Diode-OR Applications
Integrated Thermal Protection
10-Lead (3mm x 2mm x 0.75mm) LDFN Package

Part Models: 1
1ku List Price: Starting From $1.99

Documentation

Data Sheet 1

LT4423: 28V, 2A Ideal Diode and Load Switch Data Sheet (Rev.0) 10/17/2024

Evaluation Design File 1

EVAL-LT4423-AZ Design Files 10/17/2024

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT4423AV#TRPBF	LGA/CASON/CH ARRY SO NO LD	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

28V, 2A Ideal Diode & Switch Load

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Product Details

The EVAL-LT4423-AZ evaluation circuit showcases the LT4423, an ideal diode with integrated back to back P-channel MOSFETs and a load switch designed to minimize power dissipation by regulating a 15mV forward voltage when enabled. Its fast OUT to IN reverse bias detection minimizes reverse current to prevent unwanted charging of the input source. The integrated thermal detection offers additional protection against over thermal conditions by disabling the power path.

The board features two independent LT4423 ideal diodes and load switches that share a common ground and operate over a 1.9V to 28V range.

Use the SHDN input to turn on and off power to the load. In shutdown mode, the LT4423 exhibits less than 500nA (typical) quiescent current to extend battery life. Design files for this circuit board are available.