JAJSS37L November 2001 – February 2025 LP2992
PRODUCTION DATA
Tantalum capacitors are less desirable than ceramics for use as output capacitors because these components are more expensive when comparing equivalent capacitance and voltage ratings in the 1µF to 4.7µF range.
Another important consideration is that tantalum capacitors have higher ESR values than equivalent size ceramics. This condition means that although finding a Tantalum capacitor with an ESR value within the stable range is possible, the capacitor is larger in capacitance (which means bigger and more costly) than a ceramic capacitor with the same ESR value.
The ESR of a typical tantalum increases approximately 2:1 as the temperature goes from 25°C down to −40°C, so allow for some guard band.