8.2.2.3 Selecting Output Capacitor

Use low ESR capacitors at the output to minimize output voltage ripple. Use only X5R and X7R types, which retain their capacitance over wider voltage and temperature ranges than other types. Typically use a 0.1-μF to 1-μF capacitor for output voltage. Take care when evaluating the derating of a ceramic capacitor under the DC bias. Ceramic capacitors can derate its capacitance at its rated voltage. Therefore, consider enough margins on the voltage rating to ensure adequate capacitance at the required output voltage.