LTC4440-5 Datasheet | Linear Technology

Features n Wide Operating VIN Range: Up to 60V n Rugged Architecture Tolerant of 80V VIN Transients n Powerful 1.85Ω Driver Pull-Down (with 6V Supply) n Powerful 1.1A Peak Current Driver Pull-Up (with 6V Supply) n 7ns Fall Time Driving 1000p F Load n 10ns Rise Time Driving 1000p F Load n Drives Standard Threshold MOSFETs n TTL/CMOS patible Inputs with Hysteresis n Input Thresholds are Independent of Supply n Undervoltage Lockout n Low Profile (1mm) SOT-23 (Thin SOT™) and Thermally Enhanced 8-Pin MSOP Packages Applications n Telemunications Power Systems n Distributed Power Architectures n Server Power Supplies n High Density Power Modules n General Purpose Low-Side Driver L, LT, LTC, LTM, Linear Technology, the Linear logo and Poly Phase are registered trademarks and Thin SOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6677210. High Speed, High Voltage, High Side Gate Driver Description The LTC®4440-5 is a high frequency high side N-channel MOSFET gate driver that is designed to operate in applications with VIN voltages 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. The LTC4440-5 Features supply independent TTL/CMOS patible input thresholds with 350m V of hysteresis. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 95V above ground. The LTC4440-5 is optimized for driving (5V) logic level FETs and contains an undervoltage lockout circuit that disables the external MOSFET when activated. The LTC4440-5 is available in the low profile (1mm) SOT-23 or a thermally enhanced 8-lead MSOP package. PARAMETER Max Operating TS Absolute Max TS...