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High-speed synchronous MOSFET driver
( 01 Sep 2008 )
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• The LTC4447 high speed synchronous MOSFET driver is designed to drive upper and lower power N-Channel MOSFETs in a synchronous rectified converter topology
• Drives both upper and lower MOSFET gates from rail-to-rail over a voltage range of 4V to 6.5V and operates from a supply voltage up to 38V
• Can sink up to 5A and source up to 3.2A, making it ideal for driving high gate capacitance, high current MOSFETs.
• The 8ns rise time, 7ns fall time of the top MOSFET and 7ns rise time, 4ns fall time of the bottom MOSFET, when driving a 3,000pF load, minimize switching losses and improve efficiency.
• Adaptive shoot-through protection is integrated to prevent both the upper and lower MOSFETs from conducting simultaneously while minimizing dead time.
• Offered in 3mm x 3mm DFN-12 package
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