ZHCSHT5A July 2011 – March 2018 TPS61256A
PRODUCTION DATA.
請(qǐng)參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
In high-frequency converter applications, the efficiency is essentially affected by the inductor AC resistance (i.e. quality factor) and to a smaller extent by the inductor DCR value. To achieve high efficiency operation, care should be taken in selecting inductors featuring a quality factor above 25 at the switching frequency. Increasing the inductor value produces lower RMS currents, but degrades transient response. For a given physical inductor size, increased inductance usually results in an inductor with lower saturation current.
The total losses of the coil consist of both the losses in the DC resistance, R(DC) , and the following frequency-dependent components:
The following inductor series from different suppliers have been used with the TPS61256A converters.
| MANUFACTURER(1) | SERIES | DIMENSIONS (in mm) |
|---|---|---|
| MURATA | LQH44PN1R0NP0 | 4.0 x 4.0 x 1.8 max. height |
| HITACHI METALS | KSLI-322512BL1-1R0 | 3.2 x 2.5 x 1.2 max. height |
| TOKO | DFE322512C-1R0N | 3.2 x 2.5 x 1.2 max. height |