SNVS124E November 1999 – February 2020 LM2596
For additional information, see section on output capacitors in Output Capacitor (COUT) section.
From Table 6, locate the output voltage column. From that column, locate the output voltage closest to the output voltage in your application. In this example, select the 24-V line. Under the Output Capacitor (COUT) section, select a capacitor from the list of through-hole electrolytic or surface-mount tantalum types from four different capacitor manufacturers. TI recommends that both the manufacturers and the manufacturers' series that are listed in Table 6 be used.
In this example, through hole aluminum electrolytic capacitors from several different manufacturers are available.
For a 20-V output, a capacitor rating of at least 30 V is required. In this example, either a 35-V or 50-V capacitor would work. A 35-V rating was chosen, although a 50-V rating could also be used if a lower output ripple voltage is required.
Other manufacturers or other types of capacitors may also be used, provided the capacitor specifications (especially the 100-kHz ESR) closely match the types listed in Table 6. Refer to the capacitor manufacturers data sheet for this information.