SLUAAM9 November   2022 TPS56C230


  1.   Abstract
  2.   Trademarks
  3. 1OOB Operation Principle
  4. 2Differences Between OOB and OVP
  5. 3OOB Operation Logic
    1. 3.1 Case 1: <OV Threshold, >OOB Threshold
    2. 3.2 Case2: >OV Threshold
  6. 4OOB Advantage in Load Transient
  7. 5Summary
  8. 6References


Out-of-Bounds (OOB) overvoltage protection protects the output load at a much lower overvoltage threshold above the target voltage. OOB protection does not trigger an overvoltage fault, which is an early non-fault overvoltage protection mechanism.

This application note presents a detailed introduction to this OOB feature based on TPS56C230, including OOB operation principle, the differences between OOB and overvoltage protection (OVP), OOB operation logic and OOB advantages in load transient.