SNVS124F November 1999 – April 2021 LM2596
For additional information, see section on output capacitors in Section 9.1.3 section.
From Table 9-6, 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 Section 9.1.3 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 9-6 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 9-6. Refer to the capacitor manufacturers data sheet for this information.