DESCRIPTION
The LTC®1155 dual high side gate driver allows using low cost N-channel FETs for high side switching applications. An internal charge pump boosts the gate above the positive rail, fully enhancing an N-channel MOSFET with no external components. Micropower operation, with 8µA standby current and 85µA operating current, allows use in virtually all systems with maximum efficiency.

FEATURES
■ Fully Enhances N-Channel Power MOSFETs
■ 8µA Standby Current
■ 85µA ON Current
■ Short-Circuit Protection
■ Wide Power Supply Range: 4.5V to 18V
■ Controlled Switching ON and OFF Times
■ No External Charge Pump Components
■ Replaces P-Channel High Side MOSFETs
■ Compatible with Standard Logic Families
■ Available in 8-Pin SO Package

APPLICATIONS
■ Laptop Power Bus Switching
■ SCSI Termination Power Switching
■ Cellular Phone Power Management
■ P-Channel Switch Replacement
■ Relay and Solenoid Drivers
■ Low Frequency Half H-Bridge
■ Motor Speed and Torque Control