LTC4451

RECOMMENDED FOR NEW DESIGNS

40V, 7A Ideal Diode

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.66

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Part Details

Reduces Power Dissipation by Replacing a Power Schottky Diode with No External Components
Internal 7A, 21mΩ N-Channel MOSFET
15mV Regulated Forward Voltage
20μA Operating Current, 0.8μA Shutdown
Wide 0V to 40V Input Range with V_CC > 2.75V

Fast Turn-On Minimizes Voltage Droop
Fast Reverse Recovery Time Minimizes Reverse Transient Current
Smooth Switchover in Diode-OR Applications
16-Lead 2mm × 3mm LQFN Package

Part Models: 2
1ku List Price: Starting From $2.66

Documentation

Data Sheet 1

LTC4451: 40V, 7A Ideal Diode Data Sheet (Rev.0) 09/27/2021

User Guide 1

DC3001A-B - Demo Manual (Rev.0) 10/01/2021

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
LTC4451AV#TRMPBF	16-Lead LQFN (2mm x 3mm x 0.75mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4451AV#TRPBF	16-Lead LQFN (2mm x 3mm x 0.75mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4451

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.

Evaluation Kits

LTC4451 | 40V, 7A Low Quiescent Current Ideal Diode with Shutdown Mode

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Product Details

Demonstration Circuit 3001A-B showcases the LTC4451 ideal diode controller with an integrated low R_DS(ON) MOSFET. The board includes two independent LTC4451 ideal diodes sharing a common ground and operates over a range of 0V to 40V, carrying up to 8A at 25°C ambient temperature. The board can be set up in a diode-OR configuration by connecting the output channels together.

NOTE: Although the DC3001A-B can carry 8A at 25°C, the LTC4451 is designed for a max current of 7A across –40°C to 125°C. Please follow the data sheet recommendations to design your application across the operating temperature range.

Resources

DC3001A-B - Demo Manual (Rev.0)
10/1/2021

DC3001A - Schematic
10/1/2021

DC3001A-B - Design Files
10/1/2021

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