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SC33020HCSTRT Datasheet(PDF) 11 Page - Semtech Corporation |
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SC33020HCSTRT Datasheet(HTML) 11 Page - Semtech Corporation |
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11 / 15 page  SC33020H is related to the PCB stray inductance and the placement of the capacitors. The input capacitor C and output capacitor C2 need to be placed close to the SC33020H. It is important to keep the voltage ringing below the maximum voltage rating of the SC33020H. Evaluation Board Information The Top Layer and Bottom Layer of a standard evaluation board are shown in Fig. 3 and Fig. 4, respectively. Both T and T2 test points are Kelvin connections which can be used to minimize the measurement error of R ON. To enable the part, a jumper can be used between VIN and EN on J. To disable the part, a jumper can be con- nected between EN and GND on J. C3 is an optional solution to improve ringing at input rail during turn-off and reverse blocking conditions. C1 C2 SC33020H LPCB VIN VOUT LPCB GND LPCB LPCB ISW 1uF IOUT RL 1uF LPCB IIN + - Figure 2 - PCB Circuit with Equivalent Parasitic Inductance Application Information, Cont. |
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