SLVSG98B February 2023 – March 2024 TPS628301 , TPS628302 , TPS628303 , TPS628304
PRODUCTION DATA
The inductor and the output capacitor together provide a low-pass filter. To simplify this process, Table 8-5 outlines possible inductor and capacitor value combinations for most applications. Cells with the (✓) mark represent combinations that are proven for stability by simulation and lab test. additionally, cells with the (+) mark represent combinations that are proven for stability by simulation only. Check further combinations for each individual application.
The DCS-Control scheme of the TPS62830x allows the use of tiny ceramic capacitors. Ceramic capacitors with low ESR values have the lowest output voltage ripple and are recommended. To keep low resistance up to high frequencies and to get narrow capacitance variation with temperature, TI recommends using X7R or X5R dielectrics. At light load currents, the converter operates in Power Save Mode and the output voltage ripple is dependent on the output capacitor value. A larger output capacitors can be used reducing the output voltage ripple. Considering the DC-bias derating the capacitance, the recommended minimum effective output capacitance is 12 µF when using a 0.47-µH or larger inductor. When using a 0.24-µH or lower inductor, the recommended minimum effective output capacitance is 22 µF. Table 8-7 lists recommended capacitors.
VOUT [V] | NOMINAL L [µH](2) | NOMINAL COUT [µF](3) | ||
---|---|---|---|---|
2 × 10 or 22 | 2 × 22 or 47 | 100 | ||
0.5 ≤ VOUT ≤ 1.8 | 0.47 | ✓(1) | ✓ | + |
1.0 | + | + | ||
1.8 < VOUT | 0.47 | ✓(1) | + | |
1.0 | + | + |
VOUT [V] | NOMINAL L [µH](2) | NOMINAL COUT [µF](3) | ||
---|---|---|---|---|
2 × 10 or 22 | 2 × 22 or 47 | 100 | ||
0.5 ≤ VOUT ≤ 1.8 | 0.47 | ✓(1) | ✓ | + |
0.24 | + | ✓ | + | |
1.8 < VOUT | 0.47 | ✓(1) | + | |
0.24 | ✓ | + |
NOMINAL CAPACITANCE [µF] | VOLTAGE RATING [V] | DIMENSIONS [mm] | MFR PART NUMBER(1) |
---|---|---|---|
10 | 6.3 | 2.0 × 1.5 × 1.25 | MSASJ21GAB7106MTNA01, Taiyo Yuden |
10 | 10 | 2.0 × 1.25 × 1.25 | C2012X7R1A106K125AC, TDK |
10 | 10 | 1.6 × 0.8 × 0.8 | GRM188Z71A106KA73#, MuRata |
10 | 10 | 1.6 × 0.8 × 0.8 | C1608X5R1A106K080AC, TDK |
22 | 10 | 2.0 × 1.25 × 1.25 | GRM21BZ71A226ME15#, MuRata |
22 | 10 | 1.6 × 0.8 × 0.8 | C1608X5R1A226M080AC, TDK |