The TPSM5D1806E requires a minimum amount of ceramic output capacitance (per phase) depending on the output voltage setting. The amount of required output capacitance is shown in Figure 7-5 and is the amount of effective capacitance. The effects of DC bias and temperature variation must be considered when using ceramic capacitance. For ceramic capacitors, the package size, voltage rating, and dielectric material contributes to differences between the standard rated value and the actual effective value of the capacitance. When adding additional capacitance above the minimum, the capacitance can be ceramic type, low-ESR polymer type, or a combination of the two.

Figure 7-5 Minimum Required Output Capacitance (per Phase)