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LTC4444
High Voltage Synchronous
N-Channel MOSFET Driver
FEATURES DESCRIPTION n The LTCВ®4444 is a high frequency high voltage gate driver
that drives two N-channel MOSFETs in a synchronous
DC/DC converter with supply voltages up to 100V. This
powerful driver reduces switching losses in MOSFETs with
high gate capacitance. n Bootstrap Supply Voltage to 114V
Wide VCC Voltage: 7.2V to 13.5V
Adaptive Shoot-Through Protection
2.5A Peak TG Pull-Up Current
3A Peak BG Pull-Up Current
1.2О© TG Driver Pull-Down
0.55О© BG Driver Pull-Down
5ns TG Fall Time Driving 1nF Load
8ns TG Rise Time Driving 1nF Load
3ns BG Fall Time Driving 1nF Load
6ns BG Rise Time Driving 1nF Load
Drives Both High and Low Side N-Channel MOSFETs
Undervoltage Lockout
Thermally Enhanced 8-Pin MSOP Package n The LTC4444 contains undervoltage lockout circuits that
disable the external MOSFETs when activated. Adaptive
shoot-through protection prevents both MOSFETs from …