DESCRIPTION
The LTC®3775 is a high efficiency synchronous step-down switching DC/DC controller that drives an all N-channel power MOSFET stage from a 4.5V to 38V input supply voltage. A patented line feedforward compensation circuit and a high bandwidth error amplifier provide very fast line and load transient response.

FEATURES
■ Wide VIN Range: 4.5V to 38V
■ Line Feedforward Compensation
■ Low Minimum On-Time: tON(MIN) < 30ns
■ Powerful Onboard MOSFET Drivers
■ Leading Edge Modulation Voltage Mode Control
■ ±0.75%, 0.6V Reference Voltage Accuracy Over Temperature
■ VOUT Range: 0.6V to 0.8VIN
■ Programmable, Cycle-by-Cycle Peak Current Limit
■ Sense Resistor or RDS(ON) Current Sensing
■ Programmable Soft-Start
■ Synchronizable Fixed Frequency from 250kHz to 1MHz
■ Selectable Pulse-Skipping or Forced Continuous Modes of Operation
■ Low Shutdown Current: 14μA Typical
■ Thermally Enhanced 3mm × 3mm QFN Package

APPLICATIONS
■ Automotive Systems
■ Telecom and Industrial Power Supplies
■ Point of Load Applications