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A1212XT Datasheet(PDF) 4 Page - Microdc power Technology Co., Ltd |
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A1212XT Datasheet(HTML) 4 Page - Microdc power Technology Co., Ltd |
4 / 6 page A A-XT -XT Series Series http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page 4 of 6 Application Application Notes Notes Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter. Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz. Inductor Capacitor L,μH SMD Through Hole C,μF A0303XT 10 82103C 11R103C 4.7 A0305XT 22 82223C 11R223C 2.2 A0309XT 22 82223C 11R223C 2.2 A0312XT 47 82473C 11R473C 1 A0315XT 220 82474C 11R474C 0.22 A0503XT 10 82103C 11R103C 4.7 A0505XT 10 82103C 11R103C 4.7 A0305NXT 10 82103C 11R103C 4.7 A0509XT 22 82223C 11R103C 2.2 A0512XT 47 82473C 11R223C 1 A0515XT 220 82474C 11R473C 0.22 A1205XT 10 82103C 11R474C 4.7 A1209XT 22 82223C 11R223C 2.2 A1212XT 47 82473C 11R473C 1 A1215XT 220 82474C 11R474C 0.22 Tolerance Tolerance Envelopes Envelopes The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to changes in output loading. |
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