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A6985F Datasheet(PDF) 60 Page - STMicroelectronics

Part # A6985F
Description  38 V 500 mA synchronous step-down switching regulator
PDF  77 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

A6985F Datasheet(HTML) 60 Page - STMicroelectronics

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Application board
A6985F
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DocID027738 Rev 2
Figure 45. Phase margin Bode’s plot of A6985F3V3 evaluation board
8.2
A6985F5V evaluation board
Figure 46 and Figure 47 show the magnitude and phase margin Bode’s plots related to the
evaluation board presented in Figure 41 on page 56 with the BOM of Table 16 on page 56
and Table 18.
The small signal dynamic performance of the demonstration board is:
Equation 56
Table 18. Bill of material of A6985F5V demonstration board
Reference
Part number
Description
Manufacturer
C4
1.2 pF - 10 V - 0603
C7
Not mounted
C8
47 pF - 10 V - 0603
R7
0
 - 0603
R8
150 k
 - 1% - 0603
R9
Not mounted
U1
A6985F5V
STMicroelectronics
BW
100kHz
=
phase margin
69
0
=



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