The LTC4440-5 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 compatible input thresholds with 350mV 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 LTC4440-5 LTC4440A-5 LTC4440 Max Operating TS 60V 80V 80V Abssolute Max TS 80V 100V 100V MOSFET Gate Drive 4V to 15V 4V to 15V 8V to 15V VCC UV+ 3.2V 3.2V 6.3V VCC UV- 3.04V 3.04V 6.0V Applications * Telecommunications Power Systems * Distributed Power Architectures * Server Power Supplies * High Density Power Modules * General Purpose Low-Side Driver * Wide Operating VIN Range: Up to 60V * Rugged Architecture Tolerant of 80V VIN Transients * Powerful 1.85Ω Driver 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 https://elecena.pl/product/261562/high-speed-high-voltage-high-side-gate-driver 2007-03-04 https://elecena.pl/product/261562/high-speed-high-voltage-high-side-gate-driver 2014-11-12 https://elecena.pl/product/261562/high-speed-high-voltage-high-side-gate-driver 2025-01-19