The external components have to fulfill the needs of the application, but also the stability criteria of the devices control loop. The TLV62150 is optimized to work within a range of external components. The LC output filter's inductance and capacitance have to be considered in conjunction, creating a double pole, responsible for the corner frequency of the converter (see Output Filter and Loop Stability section). Table 4 can be used to simplify the output filter component selection. Checked cells represent combinations that are proven for stability by simulation and lab test. Further combinations should be checked for each individual application. See SLVA463 for details.
|4.7 µF||10 µF||22 µF||47 µF||100 µF||200 µF||400 µF|
The TLV62150 can be run with an inductor as low as 1 µH or 2.2 µH. FSW should be set Low in this case. However, for applications running with the low frequency setting (FSW=High) or with low input voltages, 3.3 µH is recommended.