LT4422
RECOMMENDED FOR NEW DESIGNS28V, 4A Ideal Diode
- Part Models
- 1
- 1ku List Price
- Starting From $3.15
Overview
- Internal 50mΩ Power Path
- Wide Operating Voltage Range: 1.9V to 28V
- Reverse Current Protection
- Low 10μA Quiescent Current
- Fast 3μs Response to Load Steps
- Low 500nA Off State Current
- Smooth Switchover in Diode-OR Applications
- 10-Lead (3mm x 2mm x 0.75mm) LDFN Package
The LT®4422 is an ideal 1.9V to 28V diode with integrated P-channel MOSFET. When enabled, 15mV forward voltage regulation minimizes power dissipation while increasing operating headroom and efficiency compared to a Schottky diode.
The LT4422 easily ORs power supplies together to increase system reliability and prevent reverse conduction. A non-enabled LT4422 blocks up to 28V at the output while exhibiting less than 1μA (typical) leakage current, providing orders of magnitude improvement over typical Schottky diodes, which leads to extended battery life.
Fast OUT to IN reverse bias detection minimizes reverse current, preventing undesired charging of input batteries. The open-drain STATUS output pulls low when the LT4422 is in shutdown or reverse bias.
Documentation
Data Sheet 1
User Guide 1
Analog Dialogue 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 |
|---|---|---|---|
| LT4422AV#TRPBF | LGA |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LT4422
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
28V, 4A Ideal Diode
Resources
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