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ARG81800

Allegro
Part Number ARG81800
Manufacturer Allegro
Description 40V 500mA / 1.0A Synchronous Buck Regulators
Published Nov 20, 2019
Detailed Description ARG81800 40 V, 500 mA / 1.0 A Synchronous Buck Regulators with Ultralow Quiescent Current, SYNCIN, CLKOUT, and PGOOD F...
Datasheet PDF File ARG81800 PDF File

ARG81800
ARG81800

Overview
ARG81800 40 V, 500 mA / 1.
0 A Synchronous Buck Regulators with Ultralow Quiescent Current, SYNCIN, CLKOUT, and PGOOD FEATURES AND BENEFITS • 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 maintaining 3.
3 or 5.
0 VOUT • AUTO mode allows automatic transition between PWM and LP mode based on load current • Programmable PWM frequency (fSW): 250 kHz to 2.
4 MHz • PWM frequency dithering and controlled switch node slew rate reduce EMI/EMC signature • CLKOUT allows interleaving and dithering of “downstream” regulators using their synchronization inputs • Interle...


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