USB97C223 and USB97C243 Capacitor Selection for Internal Regulator Output Pins

SMSC AN 10.8

Page 4

Rev. 12-16-03

APPLICATION NOTE

SMSC recommends the use of ceramic 10uF capacitors to meet the low ESR requirements of the regulator

output pins of the USB97C223. Ceramic capacitors typically have an ESR of < 0.1 Ohm.

Recommended Capacitors, or equivalent:

Kemet C0805C106K9PACTU (0805 Package)

Kemet C1206C106K9PACTU (1206 Package)

Panasonic ECJ-2FF0J106Z

(0805 Package)

Panasonic ECJ-2FF1A106Z

(0805 Package)

Tantalum capacitors that have low ESR specifications can also be used, but typically have an ESR closer to 0.5

Ohm.