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TPS51116: why does IC set the over current as half of nominal value ?

Part Number: TPS51116

Hi, Team.

could you tell me why does IC set the over current as half of nominal value ?

> 8.3.9 Soft-Start Function and Powergood Status The soft-start function

> of the SMPS is achieved by ramping up reference voltage and two-stage

> current clamp. At the starting point, the reference voltage is set to

> 650 mV (87% of its target value) and the overcurrent threshold is set

> half of the nominal value. When UVP comparator detects VDDQ become

> greater than 80% of the target, the reference voltage is raised toward

> 750 mV using internal 4-bit DAC. This takes approximately 85 μs. The

> overcurrent threshold is released to nominal value at the end of this period.