A4411

A4411 Adjustable Frequency Buck or Buck-Boost Pre-Regulator with a Synchronous Buck, 3 LDOs, Pulse-Width Window Watchdog, NPOR, and POK5V FEATURES AND BENEFITS Automotive AEC-Q100 qualified 3.5 to 36 VIN operating range, 40 VIN maximum Buck or buck-boost pre-regulator (VREG) Adjustable PWM switching frequency: 250 kHz to 2.4 MHz PWM frequency can be synchronized to external clock Synchronous buck regulator (ADJ) delivers 0.8 to 3.3 V Two 5 V LDOs for “local” sensors (V5SNR) and communications (V5CAN) with foldback short-circuit protections 5 V internal tracking LDO for remote sensors with foldback short-circuit and short-to-battery protections (V5P) TRACK sets FBADJ or V5SNR as the reference for V5P Programmable pulse-width window watchdog (PWWD) with scalable activation delay and selectable tolerance Internal Watchdog (WD) CLK with ±5% accuracy Accepts external WD CLK for improving accuracy Active-low Watchdog E...