• The integrated PMIC should be qualified for automotive applications.
• It should have Built-In Self-Test on voltage monitors
• The diagnostic percentage is 90%
• It should monitor Under/overvoltage and current-limit on all output supply rails
• It should have Watchdog (window or Q&A) for diagnostic coverage of MCU CPU health
• Current Limit and Temperature protection for all Supply Rails
• Error Signal Monitor (ESM) for monitoring MCU hardware fault diagnostic output

You can either use internal/external VREF for MCU. Figure 2-1 and Figure 2-2 show the respective solution.