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A6986 데이터시트(PDF) 41 Page - STMicroelectronics

부품명 A6986
상세설명  38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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A6986 데이터시트(HTML) 41 Page - STMicroelectronics

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A6986
Closing the loop
67
Figure 28. Phase plot
The blue solid trace represents the transfer function including the sampling effect term (see
Equation 22 on page 36), the dotted blue trace neglects the contribution.
6.5
Compensation network design
The maximum bandwidth of the system can be designed up to fSW/6 to guarantee a valid
small signal model.
Equation 33
Equation 34
where:
Equation 35
BW
fSW
6
---------
=
RC
2
 BW C
OUT VOUT

0.85V gCS gm TYP

----------------------------------------------------------------
=
fPOLE
p
2
-----------
=



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