The inductor and output capacitor together provide a low-pass filter. To simplify this process, Table 9-3 outlines possible inductor and capacitor value combinations. Checked cells represent combinations that are proven for stability by simulation and lab test. Further combinations should be checked for each individual application.
|VOUT [V]||L [µH](1)||COUT [µF](2)|
|4.7||10||22||2 × 22||100|
|0.6 ≤ VOUT < 1.2||1||++(3)|
|1.2 ≤ VOUT < 1.8||1||++(3)||+|
|1.8 ≤ VOUT||1||+(4)||++(3)||+|
A 0.47uH inductor may also be used with the same recommended output capacitors for the TPS62A02x. In case a lower output ripple is desired, higher output capacitance may help reduce the ripple.