LTC1155

LTC1155 Dual High Side Micropower MOSFET Driver FEATURES n Fully Enhances N-Channel Power MOSFETs n 8µA Standby Current n 85µA ON Current n Short-Circuit Protection n Wide Power Supply Range: 4.5V to 18V n Controlled Switching ON and OFF Times n No External Charge Pump Components n Replaces P-Channel High Side MOSFETs n Compatible with Standard Logic Families n Available in 8-Pin SO Package APPLICATIONS n Laptop Power Bus Switching n SCSI Termination Power Switching n Cellular Phone Power Management n P-Channel Switch Replacement n Relay and Solenoid Drivers n Low Frequency Half H-Bridge n Motor Speed and Torque Control 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 virt...