SFFSBD2 May   2026 LM72630-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 LM72630-Q1 FIT Rates
    2. 2.2 LM72650-Q1 FIT Rates
    3. 2.3 LM72680-Q1 FIT Rates
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
  7. 5Revision History

3 Failure Mode Distribution (FMD)

The failure mode distribution estimation for LM726X0-Q1 in Table 3-1 comes from the combination of common failure modes listed in standards such as IEC 61508 and ISO 26262, the ratio of sub-circuit function size and complexity, and from best engineering judgment.

The failure modes listed in this section reflect random failure events and do not include failures resulting from misuse or overstress.

Table 3-1 Die Failure Modes and Distribution
Die Failure ModesFailure Mode Distribution (%)
SW no output50
SW output not in specification – voltage or timing40
SW power FET stuck on5
nINT false trip or fails to trip 5