DCDC Regulators
Wide Input Voltage, 2.4 MHz, 3.0 A Asynchronous Buck Regulator with Sleep Mode, External Synchronization, and POK Output
ARG81801
These parts are in production but have been determined to be LAST TIME BUY. The ARG81801 is a high-current regulator for car audio/infotainment, offering ±1.0% output accuracy and operating down to 3.6V input. It features PWM synchronization, ultra-low current shutdown, POK output, enhanced idle/stop-start recovery, and extensive protection including current limit, short circuit, UVLO, OVP, and thermal shutdown.
Product Details
Product Details
Top Features
- Automotive AEC-Q100 qualified
- Withstands surge voltages up to 40 V
- Operates as low as 3.6 VIN (max) with VIN 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, VOUT 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
