
ON Semiconductor
The NCP3418 and NCP3418A are dual MOSFET gate drivers optimized to drive the gates of both high--side and low--side power MOSFETs in a synchronous buck converter. Each of the drivers is capable of driving a 3000 pF load with a 25 ns propagation delay and a 20 ns transition time.
With a wide operating voltage range, high or low side MOSFET gate drive voltage can be optimized for the best efficiency. Internal, adaptive nonoverlap circuitry further reduces switching losses by preventing simultaneous conduction of both MOSFETs.
FEATUREs
• Faster Rise and Fall Times
• Internal Charge Pump Diode Reduces Cost and Parts Count
• Thermal Shutdown for System Protection
• Integrated OVP
• Internal Pulldown Resistor Suppresses Transient Turn On of Either
MOSFET
• Anti Cross--Conduction Protection Circuitry
• Floating Top Driver Accommodates Boost Voltages of up to 30 V
• One Input Signal Controls Both the Upper and Lower Gate Outputs
• Output Disable Control Turns Off Both MOSFETs
• Complies with VRM 10.x Specifications
• Undervoltage Lockout
• Thermally Enhanced Package Available
• Pb--Free Packages are Available