LTC4449
High Speed Synchronous
N-Channel MOSFET Driver
FEATURES DESCRIPTION n The LTCВ®4449 is a high frequency gate driver that
is designed to drive two N-Channel MOSFETs in a
synchronous DC/DC converter. The powerful rail-to-rail
driver capability reduces switching losses in MOSFETs
with high gate capacitance. n 4V to 6.5V VCC Operating Voltage
38V Maximum Input Supply Voltage
Adaptive Shoot-Through Protection
Rail-to-Rail Output Drivers
3.2A Peak Pull-Up Current
4.5A Peak Pull-Down Current
8ns TG Rise Time Driving 3000pF Load
7ns TG Fall Time Driving 3000pF Load
Separate Supply to Match PWM Controller
Drives Dual N-Channel MOSFETs
Undervoltage Lockout
Low Profile (0.75mm) 2mm × 3mm DFN Package APPLICATIONS Distributed Power Architectures
High Density Power Modules L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners. The LTC4449 features a separate supply for the input logic
to match the signal swing of the controller IC. If the input
signal is not being driven, the LTC4449 activates a shutdown …
