SS6642-37GZ データシートの表示（PDF） - Silicon Standard Corp.

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SS6642-37GZ

3-Pin Simple Step-Up DC/DC Converter

Silicon Standard Corp. 

Component Power Dissipation

Operating in discontinuous mode, power loss in

the winding resistance of the inductor can be

approximated to

PD L

=

2  TON  * (RD) *  VOUT + VF  * (POUT)

3 L 

 VOUT 

where POUT=VOUT * IOUT; RS=Inductor DC R;

VD = Diode drop.

SS6642G

The power dissipated in the MOSFET switch is

PDSW = 2  TON  * (RON) *  VOUT + VD − VIN  * (POUT)

3 L 



VOUT



The power dissipated in the rectifier diode is

PDd =  VD  * (POUT)

 VOUT 

1/15/2005 Rev.2.10

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