Datasheet
The LTC1775 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using few external components. It features current mode control, no sense resistor required, wide voltage range, and programmable fixed frequency, etc.
User Manual
LTC1775 is a high power no RSENSETM current mode synchronous step-down switching regulator, which has the highest efficiency current mode controller, no need for sense resistor, maximum current sense voltage of 300mV, stable high current operation, dual N-channel MOSFET synchronous drive, wide VIN range: 4V to 36V, wide VOUT range: 1.19V to VIN, ±1% 1.19V reference, programmable fixed frequency with injection lock, very low dropout operation: 99% duty cycle, forced continuous mode control pin, optional programmable soft start, pin selectable output voltage, foldback current limit, output overvoltage protection, logic controlled micropower shutdown: IQ < 30µA, available in 16-lead narrow SSOP and SO packages.
