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MPZ2012S221A Datasheet(PDF) 37 Page - STMicroelectronics

Part # MPZ2012S221A
Description  38 V, 10 W synchronous iso-buck converter for isolated applications
PDF  56 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

MPZ2012S221A Datasheet(HTML) 37 Page - STMicroelectronics

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Considering the ideal case of η = 1, the equation above reaches its maximum value when D = 0.5. Therefore, the
minimum input capacitance value can be defined as follows:
CIN≥CINmin=IOUT_pri+IOUT_sec∙NsecNpri
4∙VPP∙fSW ∙
(36)
Typically, CIN is dimensioned to keep the maximum peak to peak voltage across the input filter in the order of 5%
of VINmax.
L6983I
Input capacitor selection
DS14040 - Rev 1
page 37/56



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