SLUS984C November 2009 – April 2018 TPS51200-Q1
For stable operation, the total capacitance of the VO output pin must be greater than 20 μF. Attach three, 10-μF ceramic capacitors in parallel to minimize the effect of equivalent series resistance (ESR) and equivalent series inductance (ESL). If the ESR is greater than 2 mΩ, insert an R-C filter between the output and the VOSNS input to achieve loop stability. The R-C filter time constant must be almost the same as or slightly lower than the time constant of the output capacitor and its ESR.