SLUU285D July 2007 – October 2021 TPS54283 , TPS54286 , TPS54383 , TPS54386
Under light load operation the TPS54383 controller can enter a pulse skipping mode when the inductor current falls below 800 mA. Under this mode of operation the output ripple voltage will increase. Table 5-1 shows the typical output ripple over the range of light load currents.
LOAD CURRENT (A) | VOUT1 RIPPLE (mV) | VOUT2 RIPPLE (mV) | PULSE SKIPPING (Yes/No) |
---|---|---|---|
0.0 | 105 | 61 | Yes |
0.1 | 94 | 72 | Yes |
0.2 | 120 | 75 | Yes |
0.3 | 136 | 92 | Yes |
0.4 | 117 | 94 | Yes |
0.5 | 34 | 20 | No |
0.6 | 26 | 18 | No |
0.7 | 28 | 19 | No |
0.8 | 28 | 21 | No |
0.9 | 29 | 22 | No |
1.0 | 29 | 22 | No |