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L6982 数据表(PDF) 22 Page - STMicroelectronics

部件名 L6982
功能描述  38 V, 2 A synchronous step-down converter with low quiescent current
PDF  48 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6982 数据表(HTML) 22 Page - STMicroelectronics

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FHs = 1
1+ sωn∙QP+s2ωn2
(11)
Where:
QP= 1
π∙ mC∙ 1−D −0.5
(12)
7.2
Error amplifier compensation network
The following figure shows the typical compensation network required to stabilize the system.
Figure 24. Trans-conductance embedded error amplifier
RC and CC introduce a pole and a zero in the open loop gain. The transfer function of the error amplifier and its
compensation network is:
AOs =
AVO∙ 1+s∙RC∙CC
s2∙RO∙CO∙RC∙CC+s∙ RO∙CC+RO∙CO+RC∙CC +1
(13)
Where:
L6982
Error amplifier compensation network
DS13683 - Rev 1
page 22/48



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