MAX20419ATGB/V+

    MAX20419 High-Efficiency, 3-Output, Low-Voltage DC-DC Converter Small Automotive PMIC for ADAS Applications Requiring ASIL NDA Required. Request Full Data Sheet   Description The MAX20419 is a high-efficiency, 3-output, low-voltage DC-DC converter IC. OUT1 boosts the input supply to 5V at up to 750mA, while two synchronous step-down converters operate from a 3.0V to 5.5V input voltage range and provide a 0.8V to 3.8V output voltage range at up to 3.6A. The boost converter achieves ±1.9% and the buck converters achieve ±1.4% output error over load, line, and temperature range. The IC features a 2.2MHz fixed-frequency pulse-width modulation (PWM) mode for better noise immunity and load-transient response, and a pulse-frequency-modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads, and make the layout a much simpler task with respect to discrete solutions. The IC is offered with factory-preset output voltages (see the Ordering Information/Selector Guide for available options). Other features include soft-start, overcurrent, and overtemperature protections. The MAX20419 also has several redundancy and diagnostic features for compatibility with ASIL-rated applications. Key Features  Multiple Functions for Small Size o Synchronous 750mA Boost Converter o Fixed at 5V Output o Dual Synchronous Buck Converters Up to 3.6A  Factory-Configurable from 0.8V to 3.8V in 25mV Steps o Programmable Windowed Watchdog o 3.0V to 5.5V Operating Supply Voltage o 2.2MHz Operation o Individual Active-Low RESET_ Outputs o High-Precision Performance  ±1.9% Output-Voltage Accuracy (OUT1) and  ±1.4% Output-Voltage Accuracy (OUT2, OUT3)  ±1.3% OV/UV Monitoring (OUT1–OUT3, PV) Excellent Load-Transient Performance Diagnostics and Redundant Circuits o ASIL-C Compliant o Redundant Reference o Fail Safe on Open Pins o Shorted Pin Detection Active Low-RESET1–RESET3 o Input Overvoltage Detection Robust for the Automotive Environment o Current Mode, Forced-PWM and Skip Operation o Overtemperature and Short-Circuit Protection o 24-Pin (4mm x 4mm) TQFN with Exposed Pad o -40 °C to +125 °C Automotive Temperature Range o   Applications/Uses    ADAS Infotainment SOC Power https://www.maximintegrated.com/en/products/power/power‐management‐ics/high‐performance‐pmics/MAX20419.html/tb_tab0/4‐23‐20