SLVSGG8 November 2023 TPS6287B10 , TPS6287B25
PRODMIX
The TPS6287Bx devices have been optimized for inductors in the the range 100 nH to 200 nH. If the transient response of the converter is limited by the slew rate of the current in the inductor, using a smaller inductor can improve performance. However, the output ripple current increases as the value of the inductor decreases, and higher output current ripple generates higher output voltage ripple, which adds to the transient over- or undershoot. The optimum configuration for a given application is a trade-off between a number of parameters. We recommend a starting value of 105 nH for typical applications.
The inductor ripple current is given by:
PART NUMBER | INDUCTANCE [µH] | CURRENT [A] | DC RESISTANCE | DIMENSIONS [LxWxH] mm | MANUFACTURER |
---|---|---|---|---|---|
XEL4030-101ME | 0.10 µH, ±20% | 22 | 1.5 mΩ | 4 × 4 × 3.2 | Coilcraft |
744302010 | 0.105 µH | 30 | 0.235 mΩ | 7 × 7 × 4.8 | Wurth |
XGL5030-161ME | 0.16 µH | 25 | 1.3 mΩ | 5.3 × 5.5 × 3 | Coilcraft |
CLT32-R11 | 0.110 µH | 20 | 1 mΩ | 2.5 × 3.2 × 2.5 | TDK |