ARG81800 Overview
TheARG81800 includes all the control and protection circuitry to produce a PWM regulator with ±1.5% output voltage accuracy, with ultralow quiescent current to enable “keepalive” supply operation with minimal current draw from the supply during very light load regulation. There are two versions of the ARG81800 available, 500 mA and 1 A, so the physical size of the power ponents can be optimized for lower current...
ARG81800 Key Features
- Automotive AEC-Q100 qualified
- Input operating voltage range: 3.5 to 36 V
- Withstands surge voltages to 40 V for load dump
- Low-Power (LP) mode-draws just 8 µA from VIN while
- AUTO mode allows automatic transition between PWM
- Programmable PWM frequency (fSW): 250 kHz to 2.4 MHz
- PWM frequency dithering and controlled switch node
- CLKOUT allows interleaving and dithering of “downstream”
- Interleaving minimizes input filter capacitor requirement
- Synchronization of PWM frequency to external clock on