LTC4450
RECOMMENDED FOR NEW DESIGNS18V, 12A Ideal Diode
- Part Models
- 2
- 1ku List Price
- Starting From $2.62
Overview
- Reduces Power Dissipation by Replacing a Power Schottky Diode with No External Components
- Internal 12A, 7mΩ N-Channel MOSFET
- 15mV Regulated Forward Voltage
- 20μA Operating Current, 0.8μA Shutdown
- Wide 0V to 18V Input Range with VCC > 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
The LTC4450 is a high performance Schottky diode replacement using an integrated N-Channel power MOSFET. It easily ORs power supplies together to increase system reliability and prevent reverse conduction.
The LTC4450 regulates the forward voltage at 15mV to minimize power loss compared to Schottky diodes. Regulation ensures smooth current transfer without oscillation in diode-OR applications. When the power MOSFET is fully enhanced, the RDS(ON) of the transistor is 7mΩ and rated for forward conduction up to 12A while dissipating 1W. A high performance gate driver with fast transient response minimizes both forward power dissipation and reverse current. The VCC input allows VIN to work down to ground for low voltage applications. The LTC4450 is available in a small 16-Lead 2mm × 3mm LQFN Package.
APPLICATIONS
- Schottky Diode Replacement
- Industrial, Medical and Consumer Portable Devices
- Battery and Wall Adapter Diode-ORing
Documentation
Data Sheet 1
User Guide 1
Brochure 1
Product Selection Guide 1
Book & eBook 1
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 |
|---|---|---|---|
| LTC4450AV#TRMPBF | 16-Lead LQFN (2mm x 3mm x 0.75mm) | ||
| LTC4450AV#TRPBF | 16-Lead LQFN (2mm x 3mm x 0.75mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC4450
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
LTC4450 | 18V, 12A Low Quiescent Current Ideal Diode with Shutdown Mode
Resources
Latest Discussions
No discussions on LTC4450 yet. Have something to say?
Start a Discussion on EngineerZone®