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L6932H1.2TR Datasheet(PDF) 8 Page - STMicroelectronics |
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L6932H1.2TR Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 13 page Components selection L6932H1.2 8/13 6.3 Component part list 7 Components selection 7.1 Input capacitor The input capacitor value depends on a lot of factors such as load transient requirements, input source (battery or DC/DC converter) and its distance from the input cap. Usually a 47µF is enough for any application but a much lower value can be sufficient in many cases. 7.2 Output capacitor The output capacitor choice depends basically on the load transient requirements. Tantalum, Special Polymer, POSCAP and aluminum capacitors are good and offer very low ESR values. Multilayer ceramic caps have the lowest ESR and can be required for particular applications. Nevertheless in several applications they are ok, the loop stability issue has to be considered (see loop stability section). Below a list of some suggested capacitor manufacturers Table 6. Component par list Reference Part number Description Manufacturer C1 GRM32ER6C226KE20B 22Uf, 16V MURATA C2 GRM32ER6C226KE20B 22Uf, 16V MURATA R1 N.M. R2 0 Ω R3 100K Table 7. Suggested capacitor Manufacturer Type Cap Value (µF) Rated Voltage (V) MURATA CERAMIC 1 to 47 4 to 16 PANASONIC CERAMIC 1 to 47 4 to 16 TAYO YUDEN CERAMIC 1 to 47 4 to 16 TDK CERAMIC 1 to 47 4 to 16 TOKIN CERAMIC 1 to 47 4 to 16 SANYO POSCAP 1 to 47 4 to 16 PANASONIC SP 1 to 47 4 to 16 KEMET TANTALUM 1 to 47 4 to 16 |
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