DESCRIPTION
The LTC®4440-5 is a high frequency high side N-channel MOSFET gate driver that is designed to operate in applications with VINvoltages up to 60V. The LTC4440-5 can also withstand and continue to function during 80V VIN transients. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitances. The LTC4440-5’s pull-up has a peak output current of 1.1A and its pull-down has an output impedance of 1.85Ω.

FEATURES
■ Wide Operating VINRange: Up to 60V
■ Rugged Architecture Tolerant of 80V VINTransients
■ Powerful 1.85ΩDriver Pull-Down (with 6V Supply)
■ Powerful 1.1A Peak Current Driver Pull-Up (with 6V Supply)
■ 7ns Fall Time Driving 1000pF Load
■ 10ns Rise Time Driving 1000pF Load
■ Drives Standard Threshold MOSFETs
■ TTL/CMOS Compatible Inputs with Hysteresis
■ Input Thresholds are Independent of Supply
■ Undervoltage Lockout
■ Low Profile (1mm) SOT-23 (ThinSOT™ ) and Thermally Enhanced 8-Pin MSOP Packages

APPLICATIONS
■ Telecommunications Power Systems
■ Distributed Power Architectures
■ Server Power Supplies
■ High Density Power Modules
■ General Purpose Low-Side Driver