SNOSC63B February 2012 – December 2014 LMP8646
PRODUCTION DATA.
This subsection describes the design process for a resistive load application with the LMZ12003 voltage regulator as seen in Figure 30. To see the current limiting capability of the LMP8646, the open-loop current must be greater than the close-loop current. An open-loop occurs when the LMP8646 output is not connected the LMZ12003’s feedback pin. For this example, we will let the open-loop current to be 1.5A and the close-loop current, ILIMIT, to be 1A.