LTC4442IMS8E#PBF

LTC®4442 is a high-frequency gate driver designed to drive two N-channel MOSFETs in a synchronous buck DC/DC converter topology. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance. This 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, this activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 42V above ground. Application includes distributed power architectures, high density power modules.

• Adaptive shoot-through protection, separate supply to match PWM controller
• Drives dual N-channel MOSFETs, undervoltage lockout
• Operating range from 3 to 9.5V (TA = 25°C)
• Typical DC supply current is 730μA (IN = Floating, TA = 25°C)
• Typical undervoltage lockout threshold is 2.75V (VLOGIC rising, TA = 25°C)
• Typical DC supply current is 300μA (IN = Floating, TA = 25°C)
• Typical undervoltage lockout threshold is 3.20V (VCC rising, TA = 25°C)
• 8-lead plastic MSOP package
• Temperature rating range from -40°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party