Wide Input Voltage, 2.4 MHz, 3.0 A Asynchronous Buck Regulator with Sleep Mode, External Synchronization, and POK Output

ARG81801

Automotive AEC-Q100 qualified
Withstands surge voltages up to 40 V
Operates as low as 3.6 V_IN (max) with V_IN decreasing
Delivers up to 3.0 A of output current with integrated 110 mΩ high voltage MOSFET
SLEEP input pin commands ultralow current shutdown mode
Adjustable output voltage with ±1.0% accuracy from 0°C to 85°C, ±1.5% from –40°C to 150°C
Programmable switching frequency: 250 kHz to 2.4 MHz Applying a clock input to the SYNC pin will increase the PWM frequency
Power OK (POK) open-drain output
Maximized duty cycle for low dropout
Enhanced idle-stop recovery during VIN transients
Pre-bias startup capable, V_OUT will not cause a reset
External compensation for maximum flexibility
Excellent set of protection features to satisfy the most demanding applications
Overvoltage, pulse-by-pulse current limit, hiccup mode short circuit, and thermal protection